COMERICA REPORTS THIRD QUARTER 2013 NET INCOME

OF $147 MILLION, OR 78 CENTS PER SHARE

EPS Up 3 Percent from Second Quarter 2013

and 28 Percent Over Third Quarter 2012

Net Interest Income Stable; Loan Volume Impacted

by Economic Uncertainty and Seasonality

Noninterest Income Up $6 Million, or 3 Percent

Continued Discipline Reflected in Noninterest Expenses

DALLAS/October 16, 2013 -- Comerica Incorporated (NYSE: CMA) today reported third quarter 2013 net income of $147 million, compared to $143 million for the second quarter 2013 and $117 million for the third quarter 2012. Earnings per diluted share were 78 cents for the third quarter 2013, compared to 76 cents for the second quarter 2013 and 61 cents for the third quarter 2012.

(dollar amounts in millions, except per share data)	3rd Qtr '13				2nd Qtr '13			3rd Qtr '12
Net interest income (a)	$	412			$	414		$	427
Provision for credit losses	8				13			22
Noninterest income	214				208			197
Noninterest expenses	417				416			449			(b)
Provision for income taxes	54				50			36
Net income	147				143			117
Net income attributable to common shares	145				141			116
Diluted income per common share	0.78				0.76			0.61
Average diluted shares (in millions)	187				187			191
Tier 1 common capital ratio (d)	10.74		%	(c)	10.43		%	10.37		%
Basel III Tier 1 common capital ratio (d) (e)	10.4				10.1			10.0
Tangible common equity ratio (d)	9.87				10.04			10.30

(a) Included accretion of the purchase discount on the acquired loan portfolio of $8 million, $7 million and $15 million in the third quarter 2013, second quarter 2013 and third quarter 2012, respectively.

(b) Included restructuring expenses of $25 million associated with the 2011 acquisition of Sterling Bancshares, Inc.

(c) September 30, 2013 ratio is estimated.

(d) See Reconciliation of Non-GAAP Financial Measures.

(e) Estimated ratios based on the standardized approach in the final rule and excluding most elements of accumulated other comprehensive income (AOCI).

"Fee income growth, expense control and continued solid credit quality contributed to our 28 percent year-over-year increase in earnings per share," said Ralph W. Babb Jr., chairman and chief executive officer. "Average total loans were up $497 million, or 1 percent, on a year-over-year basis, but decreased $799 million, or 2 percent, compared to the second quarter. Loan volume in the third quarter compared to the second quarter was impacted by the continued economic uncertainty and the understandable caution of our customers, as well as seasonality in auto-dealer floor plan loans and a decline in refinance volumes impacting our mortgage warehouse business.

"Average total deposits increased $2 billion, or 4 percent, year-over-year, and $417 million, or 1 percent over second quarter, to $51.9 billion. Net interest income remained relatively stable, credit quality continued to be strong, and noninterest income grew quarter over quarter, reflecting an increase in customer-driven fee income. Our capital position continued to be a source of strength to support our growth.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 2

"We believe our footprint is well situated in Texas, California and Michigan, and that our relationship banking strategy contributes to our continued success."

Third Quarter 2013 Compared to Third Quarter 2012

• Average total loans increased $497 million, or 1 percent, primarily reflecting an increase of $1.1 billion, or 4 percent, in commercial loans, partially offset by a decrease of $594 million, or 5 percent, in combined commercial mortgage and real estate construction loans. The increase in commercial loans was primarily driven by increases in National Dealer Services, general Middle Market and Energy, partially offset by a decrease in Corporate Banking.

• Average total deposits increased $2.0 billion, or 4 percent, primarily reflecting increases of $1.1 billion, or 4 percent, in interest-bearing deposits and $910 million, or 4 percent, in noninterest-bearing deposits.

• Net income increased by $30 million, or 25 percent, primarily as a result of improving credit quality reflected in lower provision for credit losses, higher customer-driven fees and lower noninterest expenses, partially offset by a decrease in net interest income. The decrease in net interest income was primarily due to a decrease in loan yields and a decrease in accretion on the acquired loan portfolio, partially offset by loan growth and a decrease in funding costs.

Third Quarter 2013 Compared to Second Quarter 2013

• Average total loans decreased $799 million, or 2 percent, to $44.1 billion, primarily reflecting decreases of $634 million, or 2 percent, in commercial loans and $180 million, or 2 percent, in combined commercial mortgage and real estate construction loans. The decrease in commercial loans was primarily driven by decreases in general Middle Market, National Dealer Services and Mortgage Banker Finance, partially offset by an increase in Technology and Life Sciences. The declines generally reflected subdued demand due to economic uncertainty, a seasonal decline in auto dealer floor plan loans and a decrease in mortgage refinancing activity. Period-end total loans decreased $1.3 billion to $44.2 billion, primarily reflecting a $1.3 billion decrease in commercial loans. The decrease in commercial loans was primarily driven by decreases in Mortgage Banker Finance and National Dealer Services.

• Investment securities available-for-sale decreased $413 million, or 4 percent, to $9.4 billion on an average basis and decreased $143 million, or 1 percent, to $9.5 billion on period-end basis as a result of a full quarter impact of the decline in the fair value of the portfolio due to the rise in long-term rates and a slowdown in the pace of purchases to replace repayments.

• Average total deposits increased $417 million, or 1 percent, to $51.9 billion, reflecting increases in most lines of business. Period-end deposits increased $1.7 billion, primarily reflecting an increase of $2.0 billion in noninterest-bearing deposits.

• Net interest income remained relatively stable at $412 million in the third quarter 2013, compared to $414 million in the second quarter 2013, as the benefit from one additional day in the third quarter and improved yields in the securities portfolio was more than offset by the impact of a decline in loan balances and lower loan yields.

• The provision for credit losses decreased $5 million to $8 million in the third quarter 2013, compared to $13 million in the second quarter 2013, reflecting continued strong credit quality and decreases in loan balances.

• Noninterest income increased $6 million to $214 million in the third quarter 2013 primarily reflecting an increase in customer-driven income of $4 million.

• Noninterest expenses increased $1 million to $417 million in the third quarter 2013, primarily reflecting a $10 million increase in salaries and employee benefits expense, partially offset by a $6 million decrease in litigation-related expenses and a $4 million decrease in write-downs on other foreclosed assets.

• Comerica repurchased 1.7 million shares of common stock ($72 million) in the third quarter 2013 under the share repurchase program. Combined with dividends, 70 percent of net income was returned to shareholders in the third quarter 2013.

• Capital remained solid at September 30, 2013, as evidenced by an estimated Tier 1 common capital ratio of 10.74 percent and a tangible common equity ratio of 9.87 percent.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 3

Net Interest Income

(dollar amounts in millions)	3rd Qtr '13			2nd Qtr '13			3rd Qtr '12
Net interest income	$	412		$	414		$	427
Net interest margin	2.79		%	2.83		%	2.96		%
Selected average balances:
Total earning assets	$	58,892		$	58,928		$	57,801
Total loans	44,094			44,893			43,597
Total investment securities	9,380			9,793			9,791
Federal Reserve Bank deposits (excess liquidity)	5,156			3,968			4,160
Total deposits	51,865			51,448			49,845
Total noninterest-bearing deposits	22,379			22,076			21,469

• Net interest income of $412 million in the third quarter 2013 decreased $2 million compared to the second quarter 2013.

◦ Interest on loans decreased by $7 million, primarily reflecting a decrease in loan volumes, includingvolume shifts in business mix ($6 million); lower loan yields due to a decline in LIBOR ($1 million); and other loan portfolio dynamics, reflecting positive credit migration and other shifts in portfolio mix ($5 million); partially offset by one additional day in the third quarter ($4 million) and an increase in the accretion of the purchase discount on the acquired loan portfolio ($1 million).

◦ Interest on mortgage-backed investment securities increased net interest income by $2 million, primarily as a result of improvement in yields due to slowing prepayment speeds ($4 million), partially offset by a decrease in average balances ($2 million).

◦ Interest on other short-term investments increased net interest income by $1 million as a result of an increase in balances deposited with the Federal Reserve Bank.

◦ A decrease in funding costs increased net interest income by $2 million, primarily reflecting lower deposit pricing and a shift in the deposit mix, as well as a lower interest expense as a result of a full-quarter impact from the maturity of debt in the second quarter 2013.

• The net interest margin of 2.79 percent decreased 4 basis points compared to the second quarter 2013. The decrease in net interest margin was primarily due to an increase in excess liquidity (-5 basis points) and lower loan yields (-3 basis points), partially offset by the impact of yield improvements on mortgage-backed securities (+3 basis points) and lower funding costs (+1 basis point).

• Average earning assets remained stable at $58.9 billion in the third quarter 2013, compared to the second quarter 2013, as an increase of $1.2 billion in excess liquidity offset decreases of $799 million in average loans and $413 million in average investment securities available-for-sale.

Noninterest Income

Noninterest income increased $6 million to $214 million for the third quarter 2013, compared to $208 million for the second quarter 2013. Customer-driven fee income increased $4 million and noncustomer-driven income increased $2 million. The increase in customer-driven fee income was primarily due to an increase in commercial lending fees of $6 million. The increase in noncustomer-driven income was primarily due to a $5 million increase in warrant income, partially offset by a decrease in income recognized from our third-party credit card provider reflecting a change in the timing of the recognition of incentives from annually to quarterly in the third quarter.

Noninterest Expenses

Noninterest expenses of $417 million in the third quarter 2013 remained relatively stable compared to the second quarter 2013, as a $10 million increase in salaries and employee benefits expense was largely offset by a $6 million decrease in litigation-related expenses as well as a $4 million decrease in write-downs on other foreclosed assets. The increase in salaries and employee benefits reflected one additional day in the third quarter 2013 and year-to-date adjustments to incentive compensation based on favorable performance relative to peers.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 4

Credit Quality

"Credit quality continued to be strong resulting in an $8 million provision," said Babb. "Net charge-offs increased slightly from their low level, while nonperforming assets and watch list loans declined."

(dollar amounts in millions)	3rd Qtr '13			2nd Qtr '13			3rd Qtr '12
Net credit-related charge-offs	$	19		$	17		$	43
Net credit-related charge-offs/Average total loans	0.18		%	0.15		%	0.39		%
Provision for credit losses	$	8		$	13		$	22
Nonperforming loans (a)	459			471			692
Nonperforming assets (NPAs) (a)	478			500			755
NPAs/Total loans and foreclosed property	1.08		%	1.10		%	1.71		%
Loans past due 90 days or more and still accruing	$	25		$	20		$	36
Allowance for loan losses	604			613			647
Allowance for credit losses on lending-related commitments (b)	34			36			35
Total allowance for credit losses	638			649			682
Allowance for loan losses/Period-end total loans	1.37		%	1.35		%	1.46		%
Allowance for loan losses/Nonperforming loans	131			130			94

(a) Excludes loans acquired with credit impairment.

(b) Included in "Accrued expenses and other liabilities" on the consolidated balance sheets.

• Nonaccrual loans decreased $12 million, to $437 million at September 30, 2013, compared to $449 million at June 30, 2013.

• Internal watch list loans decreased $210 million, to $2.7 billion at September 30, 2013, compared to $2.9 billion at June 30, 2013.

• During the third quarter 2013, $50 million of borrower relationships over $2 million were transferred to nonaccrual status, an increase of $13 million from the second quarter 2013.

Balance Sheet and Capital Management

Total assets and common shareholders' equity were $64.7 billion and $7.0 billion, respectively, at September 30, 2013, compared to $62.9 billion and $6.9 billion, respectively, at June 30, 2013. The $1.8 billion increase in total assets primarily reflected an increase of $2.9 billion in excess liquidity, partially offset by a decrease in loans of $1.3 billion.

There were approximately 184 million common shares outstanding at September 30, 2013. Diluted weighted average shares of 187 million at September 30, 2013 were unchanged compared to June 30, 2013, as the impact of the repurchase of $72 million of common stock (1.7 million shares) under the share repurchase program during the third quarter 2013 was offset by the impact of an increase in share dilution from options and warrants due to an increase in Comerica's stock price. Combined with the dividend of $0.17 per share, share repurchases under the share repurchase program and dividends returned 70 percent of third quarter 2013 net income to shareholders.

Comerica's tangible common equity ratio was 9.87 percent at September 30, 2013, a decrease of 17 basis points from June 30, 2013. The estimated Tier 1 common capital ratio increased 31 basis points, to 10.74 percent at September 30, 2013, from June 30, 2013. The estimated Tier 1 common ratio under fully phased-in Basel III capital rules and excluding most elements of AOCI was 10.4 percent percent at September 30, 2013.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 5

Full-Year and Fourth Quarter 2013 Outlook

Management expectations for full-year 2013 compared to full-year 2012 have not changed from the previously provided outlook, with the exception of customer-driven fees, which are expected to be modestly higher based on strong third quarter results.

For fourth quarter 2013, management expects the following, assuming a continuation of the current slow growing economic environment:

• Average loans for the fourth quarter 2013 are expected to be stable compared to third quarter 2013, reflecting auto-dealer floor plan loans rebounding from seasonal low along with continued decline in mortgage warehouse lending and economic uncertainty impacting demand.

• Net interest income is expected to be lower for the fourth quarter 2013, compared to third quarter 2013, due to the continued impact from the low rate environment and a decrease in purchase accounting accretion.

• The provision for credit losses for the fourth quarter 2013 is expected to remain low, similar to the levels in previous 2013 quarters.

• Customer-driven noninterest income for the fourth quarter 2013 is expected to be relatively stable compared to third quarter 2013, while noncustomer-driven noninterest income is expected to be lower.

• Fourth quarter 2013 noninterest expense is expected to be slightly lower compared to third quarter 2013, reflecting continued tight expense control.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 6

Business Segments

Comerica's operations are strategically aligned into three major business segments: the Business Bank, the Retail Bank and Wealth Management. The Finance Division is also reported as a segment. The financial results below are based on the internal business unit structure of the Corporation and methodologies in effect at September 30, 2013 and are presented on a fully taxable equivalent (FTE) basis. The accompanying narrative addresses third quarter 2013 results compared to second quarter 2013.

The following table presents net income (loss) by business segment.

(dollar amounts in millions)	3rd Qtr '13					2nd Qtr '13					3rd Qtr '12
Business Bank	$	209		91	%	$	207		85	%	$	207		88	%
Retail Bank	6			3		11			5		10			4
Wealth Management	15			6		24			10		18			8
	230			100	%	242			100	%	235			100	%
Finance	(87		)			(98		)			(100		)
Other (a)	4					(1		)			(18		)
Total	$	147				$	143				$	117

(a) Includes items not directly associated with the three major business segments or the Finance Division.

Business Bank

(dollar amounts in millions)	3rd Qtr '13			2nd Qtr '13		3rd Qtr '12
Net interest income (FTE)	$	368		$	372	$	380
Provision for credit losses	(1		)	10		15
Noninterest income	89			80		76
Noninterest expenses	153			147		145
Net income	209			207		207
Net credit-related charge-offs	9			11		27
Selected average balances:
Assets	35,298			36,017		34,861
Loans	34,178			34,955		33,856
Deposits	26,284			25,987		25,142

• Average loans decreased $777 million, primarily reflecting decreases in general Middle Market, National Dealer Services and Mortgage Banker Finance, partially offset by an increase in Technology and Life Sciences.

• Average deposits increased $297 million, primarily reflecting increases in general Middle Market and Commercial Real Estate.

• Net interest income decreased $4 million, primarily due to a decrease in average loans and lower loan yields, partially offset by the benefit provided by one additional day in the quarter and higher purchase accounting accretion.

• The provision for credit losses decreased $11 million, primarily reflecting improved credit quality and decreases in loan balances.

• Noninterest income increased $9 million, primarily due to an increase in commercial lending fees and income from principal investments and warrants.

• Noninterest expenses increased $6 million, primarily due to an increase in salaries expense and corporate overhead expenses, partially offset by a decrease in write-downs on other foreclosed assets.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 7

Retail Bank

(dollar amounts in millions)	3rd Qtr '13		2nd Qtr '13		3rd Qtr '12
Net interest income (FTE)	$	151	$	154	$	161
Provision for credit losses	10		5		6
Noninterest income	45		46		41
Noninterest expenses	177		178		181
Net income	6		11		10
Net credit-related charge-offs	7		4		13
Selected average balances:
Assets	5,967		5,962		5,964
Loans	5,285		5,271		5,265
Deposits	21,257		21,241		20,682

• Average loans increased $14 million, primarily due to an increase in Small Business, partially offset by a decrease in Retail Banking.

• Average deposits increased $16 million, primarily due to an increase in Small Business, largely offset by a decrease in Retail Banking.

• Net interest income decreased $3 million, primarily due to decreases in funds transfer pricing (FTP) credits and purchase accounting accretion, partially offset by the benefit provided by one additional day in the quarter.

• The provision for credit losses increased $5 million, primarily due to an increase in specific reserves for individually evaluated loans.

• Noninterest income remained relatively stable, primarily due to a decrease in incentive payments received from Comerica's third-party credit card provider, partially offset by a decrease in net securities losses.

Wealth Management

(dollar amounts in millions)	3rd Qtr '13		2nd Qtr '13			3rd Qtr '12
Net interest income (FTE)	$	45	$	46		$	47
Provision for credit losses	1		(3		)	4
Noninterest income	61		65			62
Noninterest expenses	81		77			77
Net income	15		24			18
Net credit-related charge-offs	3		2			3
Selected average balances:
Assets	4,789		4,828			4,566
Loans	4,631		4,667			4,476
Deposits	3,782		3,701			3,667

• Average loans decreased $36 million, primarily due to a decrease in Private Banking.

• Average deposits increased $81 million, primarily due to an increase in Private Banking.

• The provision for credit losses increased $4 million, primarily due to an increase in specific reserves pertaining to a small number of individually evaluated loans.

• Noninterest income decreased $4 million, primarily reflecting decreases in fiduciary income, investment banking fees and other small decreases in several categories.

• Noninterest expenses increased $4 million, primarily due to an increase in salaries expense and corporate overhead expenses.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 8

Geographic Market Segments

Comerica also provides market segment results for three primary geographic markets: Michigan, California and Texas. In addition to the three primary geographic markets, Other Markets is also reported as a market segment. Other Markets includes Florida, Arizona, the International Finance division and businesses that have a significant presence outside of the three primary geographic markets. The tables below present the geographic market results based on the methodologies in effect at September 30, 2013 and are presented on a fully taxable equivalent (FTE) basis.

The following table presents net income (loss) by market segment.

(dollar amounts in millions)	3rd Qtr '13					2nd Qtr '13					3rd Qtr '12
Michigan	$	73		32	%	$	77		32	%	$	71		30	%
California	71			31		65			27		67			29
Texas	35			15		46			19		44			19
Other Markets	51			22		54			22		53			22
	230			100	%	242			100	%	235			100	%
Finance & Other (a)	(83		)			(99		)			(118		)
Total	$	147				$	143				$	117

(a) Includes items not directly associated with the geographic markets.

• Average loans decreased $322 million and $237 million in Michigan and Texas, respectively, and increased $90 million in California. Decreases in Michigan and Texas primarily reflected decreases in Middle Market loans. The increase in California was primarily due to increases in Commercial Real Estate and Private Banking.

• Average deposits increased $306 million in Michigan primarily due to an increase in general Middle Market, partially offset by a decrease in Retail Banking. In California, average deposits decreased $111 million primarily reflecting a decrease in Corporate Banking, partially offset by an increase in Commercial Real Estate. The increase in Texas of $104 million was primarily due to an increase in Corporate Banking, partially offset by a decrease in general Middle Market.

• Credit quality improved in all geographic markets resulting in decreases to the provision for credit losses in Michigan and California. The increase in the provision for credit losses in Texas was primarily due to an increase in specific reserves pertaining to a small number of individually evaluated loans.

Michigan Market

(dollar amounts in millions)	3rd Qtr '13			2nd Qtr '13			3rd Qtr '12
Net interest income (FTE)	$	186		$	187		$	193
Provision for credit losses	(8		)	(4		)	2
Noninterest income	88			88			95
Noninterest expenses	167			161			175
Net income	73			77			71
Net credit-related charge-offs	1			4			12
Selected average balances:
Assets	13,744			14,022			13,785
Loans	13,276			13,598			13,475
Deposits	20,465			20,159			19,628

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 9

California Market

(dollar amounts in millions)	3rd Qtr '13			2nd Qtr '13		3rd Qtr '12
Net interest income (FTE)	$	171		$	173	$	176
Provision for credit losses	(3		)	7		6
Noninterest income	42			36		33
Noninterest expenses	101			100		98
Net income	71			65		67
Net credit-related charge-offs	8			12		11
Selected average balances:
Assets	14,245			14,155		13,171
Loans	14,002			13,912		12,915
Deposits	14,567			14,671		14,964

Texas Market

(dollar amounts in millions)	3rd Qtr '13		2nd Qtr '13			3rd Qtr '12
Net interest income (FTE)	$	129	$	131		$	138
Provision for credit losses	17		6			10
Noninterest income	35		34			30
Noninterest expenses	92		89			89
Net income	35		46			44
Net credit-related charge-offs	4		(3		)	7
Selected average balances:
Assets	10,642		10,886			10,324
Loans	9,942		10,179			9,585
Deposits	10,298		10,187			9,941

Conference Call and Webcast

Comerica will host a conference call to review third quarter 2013 financial results at 7 a.m. CT Wednesday, October 16, 2013. Interested parties may access the conference call by calling (800) 309-2262 or (706) 679-5261 (event ID No. 60015337). The call and supplemental financial information can also be accessed via Comerica's "Investor Relations" page at www.comerica.com. A replay of the Webcast can be accessed via Comerica's “Investor Relations” page at www.comerica.com.

Comerica Incorporated is a financial services company headquartered in Dallas, Texas, and strategically aligned by three major business segments: The Business Bank, The Retail Bank and Wealth Management. Comerica focuses on relationships and helping people and businesses be successful. In addition to Texas, Comerica Bank locations can be found in Arizona, California, Florida and Michigan, with select businesses operating in several other states, as well as in Canada and Mexico.

This press release contains both financial measures based on accounting principles generally accepted in the United States (GAAP) and non-GAAP based financial measures, which are used where management believes it to be helpful in understanding Comerica's results of operations or financial position. Where non-GAAP financial measures are used, the comparable GAAP financial measure, as well as a reconciliation to the comparable GAAP financial measure, can be found in this press release. These disclosures should not be viewed as a substitute for operating results determined in accordance with GAAP, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other companies.

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COMERICA REPORTS THIRD QUARTER 2013 NET INCOME OF $147 MILLION - 10

Forward-looking Statements

Any statements in this news release that are not historical facts are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Words such as “anticipates,” “believes,” “contemplates,” “feels,” “expects,” “estimates,” “seeks,” “strives,” “plans,” “intends,” “outlook,” “forecast,” “position,” “target,” “mission,” “assume,” “achievable,” “potential,” “strategy,” “goal,” “aspiration,” “opportunity,” “initiative,” “outcome,” “continue,” “remain,” “maintain,” “on course,” “trend,” “objective,” “looks forward” and variations of such words and similar expressions, or future or conditional verbs such as “will,” “would,” “should,” “could,” “might,” “can,” “may” or similar expressions, as they relate to Comerica or its management, are intended to identify forward-looking statements. These forward-looking statements are predicated on the beliefs and assumptions of Comerica's management based on information known to Comerica's management as of the date of this news release and do not purport to speak as of any other date. Forward-looking statements may include descriptions of plans and objectives of Comerica's management for future or past operations, products or services, and forecasts of Comerica's revenue, earnings or other measures of economic performance, including statements of profitability, business segments and subsidiaries, estimates of credit trends and global stability. Such statements reflect the view of Comerica's management as of this date with respect to future events and are subject to risks and uncertainties. Should one or more of these risks materialize or should underlying beliefs or assumptions prove incorrect, Comerica's actual results could differ materially from those discussed. Factors that could cause or contribute to such differences are changes in general economic, political or industry conditions; changes in monetary and fiscal policies, including the interest rate policies of the Federal Reserve Board; volatility and disruptions in global capital and credit markets; changes in Comerica's credit rating; the interdependence of financial service companies; changes in regulation or oversight; unfavorable developments concerning credit quality; any future acquisitions or divestitures; the effects of more stringent capital or liquidity requirements; declines or other changes in the businesses or industries of Comerica's customers; the implementation of Comerica's strategies and business models; Comerica's ability to utilize technology to efficiently and effectively develop, market and deliver new products and services; operational difficulties, failure of technology infrastructure or information security incidents; changes in the financial markets, including fluctuations in interest rates and their impact on deposit pricing; competitive product and pricing pressures among financial institutions within Comerica's markets; changes in customer behavior; management's ability to maintain and expand customer relationships; management's ability to retain key officers and employees; the impact of legal and regulatory proceedings or determinations; the effectiveness of methods of reducing risk exposures; the effects of terrorist activities and other hostilities; the effects of catastrophic events including, but not limited to, hurricanes, tornadoes, earthquakes, fires, droughts and floods; changes in accounting standards and the critical nature of Comerica's accounting policies. Comerica cautions that the foregoing list of factors is not exclusive. For discussion of factors that may cause actual results to differ from expectations, please refer to our filings with the Securities and Exchange Commission. In particular, please refer to “Item 1A. Risk Factors” beginning on page 13 of Comerica's Annual Report on Form 10-K for the year ended December 31, 2012 and on page 68 of the Corporation's Quarterly Report on Form 10-Q for the quarter ended June 30, 2013. Forward-looking statements speak only as of the date they are made. Comerica does not undertake to update forward-looking statements to reflect facts, circumstances, assumptions or events that occur after the date the forward-looking statements are made. For any forward-looking statements made in this news release or in any documents, Comerica claims the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.

Media Contact:	Investor Contacts:
Wayne J. Mielke	Darlene P. Persons
(214) 462-4463	(214) 462-6831
	Brittany L. Butler
	(214) 462-6834

CONSOLIDATED FINANCIAL HIGHLIGHTS (unaudited)
Comerica Incorporated and Subsidiaries
	Three Months Ended									Nine Months Ended
	September 30,			June 30,			September 30,			September 30,
(in millions, except per share data)	2013			2013			2012			2013			2012
PER COMMON SHARE AND COMMON STOCK DATA
Diluted net income	$	0.78		$	0.76		$	0.61		$	2.23		$	2.00
Cash dividends declared	0.17			0.17			0.15			0.51			0.40
Common shareholders' equity (at period end)	37.94			37.32			37.01
Tangible common equity (at period end) (a)	34.38			33.79			33.56
Average diluted shares (in thousands)	187,104			186,998			191,492			187,180			193,991
KEY RATIOS
Return on average common shareholders' equity	8.50		%	8.23		%	6.67		%	8.14		%	7.46		%
Return on average assets	0.92			0.90			0.75			0.89			0.84
Tier 1 common capital ratio (a) (b)	10.74			10.43			10.37
Tier 1 risk-based capital ratio (b)	10.74			10.43			10.37
Total risk-based capital ratio (b)	13.44			13.29			13.69
Leverage ratio (b)	10.88			10.81			10.78
Tangible common equity ratio (a)	9.87			10.04			10.30
AVERAGE BALANCES
Commercial loans	$	27,759		$	28,393		$	26,700		$	28,069		$	25,810
Real estate construction loans:
Commercial Real Estate business line (c)	1,263			1,218			999			1,199			1,029
Other business lines (d)	259			235			390			231			391
Total real estate construction loans	1,522			1,453			1,389			1,430			1,420
Commercial mortgage loans:
Commercial Real Estate business line (c)	1,714			1,798			2,140			1,782			2,367
Other business lines (d)	7,229			7,394			7,530			7,395			7,584
Total commercial mortgage loans	8,943			9,192			9,670			9,177			9,951
Lease financing	839			855			852			850			873
International loans	1,252			1,262			1,302			1,265			1,257
Residential mortgage loans	1,642			1,602			1,488			1,600			1,498
Consumer loans	2,137			2,136			2,196			2,142			2,225
Total loans	44,094			44,893			43,597			44,533			43,034
Earning assets	58,892			58,928			57,801			58,810			56,883
Total assets	63,660			63,709			62,984			63,710			62,008
Noninterest-bearing deposits	22,379			22,076			21,469			21,991			20,415
Interest-bearing deposits	29,486			29,372			28,376			29,364			28,532
Total deposits	51,865			51,448			49,845			51,355			48,947
Common shareholders' equity	6,923			6,982			7,045			6,953			6,996
NET INTEREST INCOME
Net interest income (fully taxable equivalent basis)	$	413		$	415		$	428		$	1,244		$	1,306
Fully taxable equivalent adjustment	1			1			1			2			2
Net interest margin (fully taxable equivalent basis)	2.79		%	2.83		%	2.96		%	2.83		%	3.08		%
CREDIT QUALITY
Nonaccrual loans	$	437		$	449		$	665
Reduced-rate loans	22			22			27
Total nonperforming loans (e)	459			471			692
Foreclosed property	19			29			63
Total nonperforming assets (e)	478			500			755
Loans past due 90 days or more and still accruing	25			20			36
Gross loan charge-offs	39			35			59			$	112		$	185
Loan recoveries	20			18			16			52			52
Net loan charge-offs	19			17			43			60			133
Allowance for loan losses	604			613			647
Allowance for credit losses on lending-related commitments	34			36			35
Total allowance for credit losses	638			649			682
Allowance for loan losses as a percentage of total loans	1.37		%	1.35		%	1.46		%
Net loan charge-offs as a percentage of average total loans (f)	0.18			0.15			0.39			0.18		%	0.41		%
Nonperforming assets as a percentage of total loans and foreclosed property (e)	1.08			1.10			1.71
Allowance for loan losses as a percentage of total nonperforming loans	131			130			94

(a) See Reconciliation of Non-GAAP Financial Measures.

(b) September 30, 2013 ratios are estimated.

(c) Primarily loans to real estate developers.

(d) Primarily loans secured by owner-occupied real estate.

(e) Excludes loans acquired with credit-impairment.

(f) Lending-related commitment charge-offs were zero in all periods presented.

11

CONSOLIDATED BALANCE SHEETS
Comerica Incorporated and Subsidiaries
	September 30,			June 30,			December 31,			September 30,
(in millions, except share data)	2013			2013			2012			2012
	(unaudited)			(unaudited)						(unaudited)
ASSETS
Cash and due from banks	$	1,384		$	1,016		$	1,395		$	933
Federal funds sold	—			31			100			—
Interest-bearing deposits with banks	5,704			2,878			3,039			3,005
Other short-term investments	106			119			125			146
Investment securities available-for-sale	9,488			9,631			10,297			10,569
Commercial loans	27,897			29,186			29,513			27,460
Real estate construction loans	1,552			1,479			1,240			1,392
Commercial mortgage loans	8,785			9,007			9,472			9,559
Lease financing	829			843			859			837
International loans	1,286			1,209			1,293			1,277
Residential mortgage loans	1,650			1,611			1,527			1,495
Consumer loans	2,152			2,124			2,153			2,174
Total loans	44,151			45,459			46,057			44,194
Less allowance for loan losses	(604		)	(613		)	(629		)	(647		)
Net loans	43,547			44,846			45,428			43,547
Premises and equipment	604			604			622			625
Accrued income and other assets	3,837			3,822			4,063			4,175
Total assets	$	64,670		$	62,947		$	65,069		$	63,000
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing deposits	$	23,896		$	21,870		$	23,279		$	21,753
Money market and interest-bearing checking deposits	21,697			21,677			21,273			20,397
Savings deposits	1,645			1,677			1,606			1,589
Customer certificates of deposit	5,180			5,594			5,531			5,742
Foreign office time deposits	491			437			502			486
Total interest-bearing deposits	29,013			29,385			28,912			28,214
Total deposits	52,909			51,255			52,191			49,967
Short-term borrowings	226			131			110			63
Accrued expenses and other liabilities	1,001			1,049			1,106			1,146
Medium- and long-term debt	3,565			3,601			4,720			4,740
Total liabilities	57,701			56,036			58,127			55,916
Common stock - $5 par value:
Authorized - 325,000,000 shares
Issued - 228,164,824 shares	1,141			1,141			1,141			1,141
Capital surplus	2,171			2,160			2,162			2,153
Accumulated other comprehensive loss	(541		)	(538		)	(413		)	(253		)
Retained earnings	6,239			6,127			5,931			5,831
Less cost of common stock in treasury - 44,483,659 shares at 9/30/13, 42,999,083 shares at 6/30/13, 39,889,610 shares at 12/31/12 and 36,790,174 shares at 9/30/12	(2,041		)	(1,979		)	(1,879		)	(1,788		)
Total shareholders' equity	6,969			6,911			6,942			7,084
Total liabilities and shareholders' equity	$	64,670		$	62,947		$	65,069		$	63,000

12

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
Comerica Incorporated and Subsidiaries
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in millions, except per share data)	2013		2012		2013			2012
INTEREST INCOME
Interest and fees on loans	$	381	$	400	$	1,159		$	1,219
Interest on investment securities	54		57		159			179
Interest on short-term investments	4		3		10			9
Total interest income	439		460		1,328			1,407
INTEREST EXPENSE
Interest on deposits	13		17		43			54
Interest on medium- and long-term debt	14		16		43			49
Total interest expense	27		33		86			103
Net interest income	412		427		1,242			1,304
Provision for credit losses	8		22		37			63
Net interest income after provision for credit losses	404		405		1,205			1,241
NONINTEREST INCOME
Service charges on deposit accounts	53		53		161			162
Fiduciary income	41		39		128			116
Commercial lending fees	28		22		71			71
Letter of credit fees	17		19		49			54
Card fees	20		16		55			48
Foreign exchange income	9		9		27			29
Bank-owned life insurance	12		10		31			30
Brokerage fees	5		5		14			14
Net securities gains (losses)	1		—		(1		)	11
Other noninterest income	28		24		87			79
Total noninterest income	214		197		622			614
NONINTEREST EXPENSES
Salaries	196		192		566			582
Employee benefits	59		61		185			181
Total salaries and employee benefits	255		253		751			763
Net occupancy expense	41		40		119			121
Equipment expense	15		17		45			50
Outside processing fee expense	31		27		89			79
Software expense	22		23		66			67
Merger and restructuring charges	—		25		—			33
FDIC insurance expense	9		9		26			29
Advertising expense	6		7		18			21
Other real estate expense	1		2		3			6
Other noninterest expenses	37		46		132			161
Total noninterest expenses	417		449		1,249			1,330
Income before income taxes	201		153		578			525
Provision for income taxes	54		36		154			134
NET INCOME	147		117		424			391
Less income allocated to participating securities	2		1		6			4
Net income attributable to common shares	$	145	$	116	$	418		$	387
Earnings per common share:
Basic	$	0.80	$	0.61	$	2.28		$	2.00
Diluted	0.78		0.61		2.23			2.00
Comprehensive income	144		165		296			494
Cash dividends declared on common stock	31		29		95			78
Cash dividends declared per common share	0.17		0.15		0.51			0.40

13

CONSOLIDATED QUARTERLY STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
Comerica Incorporated and Subsidiaries
	Third		Second			First		Fourth			Third		Third Quarter 2013 Compared To:
	Quarter		Quarter			Quarter		Quarter			Quarter		Second Quarter 2013					Third Quarter 2012
(in millions, except per share data)	2013		2013			2013		2012			2012		Amount			Percent		Amount			Percent
INTEREST INCOME
Interest and fees on loans	$	381	$	388		$	390	$	398		$	400	$	(7	)	(2	)%	$	(19	)	(5	)%
Interest on investment securities	54		52			53		55			57		2			6		(3		)	(3	)
Interest on short-term investments	4		3			3		3			3		1			25		1			9
Total interest income	439		443			446		456			460		(4		)	(1	)	(21		)	(4	)
INTEREST EXPENSE
Interest on deposits	13		15			15		16			17		(2		)	(7	)	(4		)	(23	)
Interest on medium- and long-term debt	14		14			15		16			16		—			—		(2		)	(13	)
Total interest expense	27		29			30		32			33		(2		)	(5	)	(6		)	(18	)
Net interest income	412		414			416		424			427		(2		)	—		(15		)	(3	)
Provision for credit losses	8		13			16		16			22		(5		)	(42	)	(14		)	(64	)
Net interest income after provision for credit losses	404		401			400		408			405		3			1		(1		)	—
NONINTEREST INCOME
Service charges on deposit accounts	53		53			55		52			53		—			—		—			—
Fiduciary income	41		44			43		42			39		(3		)	(4	)	2			6
Commercial lending fees	28		22			21		25			22		6			24		6			27
Letter of credit fees	17		16			16		17			19		1			1		(2		)	(12	)
Card fees	20		18			17		17			16		2			4		4			20
Foreign exchange income	9		9			9		9			9		—			—		—			—
Bank-owned life insurance	12		10			9		9			10		2			22		2			23
Brokerage fees	5		4			5		5			5		1			—		—			—
Net securities gains (losses)	1		(2		)	—		1			—		3			N/M		1			N/M
Other noninterest income	28		34			25		27			24		(6		)	(10	)	4			20
Total noninterest income	214		208			200		204			197		6			3		17			9
NONINTEREST EXPENSES
Salaries	196		182			188		196			192		14			8		4			3
Employee benefits	59		63			63		59			61		(4		)	(5	)	(2		)	(3	)
Total salaries and employee benefits	255		245			251		255			253		10			5		2			2
Net occupancy expense	41		39			39		42			40		2			2		1			—
Equipment expense	15		15			15		15			17		—			—		(2		)	(8	)
Outside processing fee expense	31		30			28		28			27		1			10		4			22
Software expense	22		22			22		23			23		—			—		(1		)	(5	)
Merger and restructuring charges	—		—			—		2			25		—			—		(25		)	N/M
FDIC insurance expense	9		8			9		9			9		1			10		—			—
Advertising expense	6		6			6		6			7		—			—		(1		)	(15	)
Other real estate expense	1		1			1		3			2		—			—		(1		)	(49	)
Other noninterest expenses	37		50			45		44			46		(13		)	(26	)	(9		)	(20	)
Total noninterest expenses	417		416			416		427			449		1			1		(32		)	(7	)
Income before income taxes	201		193			184		185			153		8			4		48			31
Provision for income taxes	54		50			50		55			36		4			7		18			47
NET INCOME	147		143			134		130			117		4			2		30			25
Less income allocated to participating securities	2		2			2		2			1		—			—		1			45
Net income attributable to common shares	$	145	$	141		$	132	$	128		$	116	$	4		2	%	$	29		25	%
Earnings per common share:
Basic	$	0.80	$	0.77		$	0.71	$	0.68		$	0.61	$	0.03		4	%	$	0.19		31	%
Diluted	0.78		0.76			0.70		0.68			0.61		0.02			3		0.17			28
Comprehensive income (loss)	144		15			137		(30		)	165		129			N/M		(21		)	(13	)
Cash dividends declared on common stock	31		32			32		28			29		(1		)	(1	)	2			9
Cash dividends declared per common share	0.17		0.17			0.17		0.15			0.15		—			—		0.02			13

N/M - Not Meaningful

14

ANALYSIS OF THE ALLOWANCE FOR LOAN LOSSES (unaudited)
Comerica Incorporated and Subsidiaries
	2013									2012
(in millions)	3rd Qtr			2nd Qtr			1st Qtr			4th Qtr			3rd Qtr
Balance at beginning of period	$	613		$	617		$	629		$	647		$	667
Loan charge-offs:
Commercial	20			19			21			42			19
Real estate construction:
Commercial Real Estate business line (a)	1			2			—			1			2
Other business lines (b)	—			—			—			—			—
Total real estate construction	1			2			—			1			2
Commercial mortgage:
Commercial Real Estate business line (a)	6			2			1			5			12
Other business lines (b)	3			7			12			6			13
Total commercial mortgage	9			9			13			11			25
International	—			—			—			—			1
Residential mortgage	1			1			1			2			6
Consumer	8			4			3			4			6
Total loan charge-offs	39			35			38			60			59
Recoveries on loans previously charged-off:
Commercial	8			11			6			13			7
Real estate construction	2			1			1			1			3
Commercial mortgage	7			3			5			6			5
Lease financing	1			—			—			—			—
International	—			—			—			1			—
Residential mortgage	1			1			1			1			—
Consumer	1			2			1			1			1
Total recoveries	20			18			14			23			16
Net loan charge-offs	19			17			24			37			43
Provision for loan losses	10			13			12			19			23
Balance at end of period	$	604		$	613		$	617		$	629		$	647
Allowance for loan losses as a percentage of total loans	1.37		%	1.35		%	1.37		%	1.37		%	1.46		%
Net loan charge-offs as a percentage of average total loans	0.18			0.15			0.21			0.34			0.39

(a) Primarily charge-offs of loans to real estate developers.

(b) Primarily charge-offs of loans secured by owner-occupied real estate.

ANALYSIS OF THE ALLOWANCE FOR CREDIT LOSSES ON LENDING-RELATED COMMITMENTS (unaudited)
Comerica Incorporated and Subsidiaries
	2013							2012
(in millions)	3rd Qtr			2nd Qtr		1st Qtr		4th Qtr			3rd Qtr
Balance at beginning of period	$	36		$	36	$	32	$	35		$	36
Add: Provision for credit losses on lending-related commitments	(2		)	—		4		(3		)	(1		)
Balance at end of period	$	34		$	36	$	36	$	32		$	35
Unfunded lending-related commitments sold	$	2		$	1	$	2	$	—		$	—

15

NONPERFORMING ASSETS (unaudited)
Comerica Incorporated and Subsidiaries
	2013									2012
(in millions)	3rd Qtr			2nd Qtr			1st Qtr			4th Qtr			3rd Qtr
SUMMARY OF NONPERFORMING ASSETS AND PAST DUE LOANS
Nonaccrual loans:
Business loans:
Commercial	$	107		$	102		$	102		$	103		$	154
Real estate construction:
Commercial Real Estate business line (a)	24			26			30			30			45
Other business lines (b)	1			2			3			3			6
Total real estate construction	25			28			33			33			51
Commercial mortgage:
Commercial Real Estate business line (a)	67			69			86			94			137
Other business lines (b)	139			157			178			181			219
Total commercial mortgage	206			226			264			275			356
Lease financing	—			—			—			3			3
Total nonaccrual business loans	338			356			399			414			564
Retail loans:
Residential mortgage	63			62			65			70			69
Consumer:
Home equity	34			28			28			31			28
Other consumer	2			3			2			4			4
Total consumer	36			31			30			35			32
Total nonaccrual retail loans	99			93			95			105			101
Total nonaccrual loans	437			449			494			519			665
Reduced-rate loans	22			22			21			22			27
Total nonperforming loans (c)	459			471			515			541			692
Foreclosed property	19			29			40			54			63
Total nonperforming assets (c)	$	478		$	500		$	555		$	595		$	755
Nonperforming loans as a percentage of total loans	1.04		%	1.04		%	1.14		%	1.17		%	1.57		%
Nonperforming assets as a percentage of total loans  and foreclosed property	1.08			1.10			1.23			1.29			1.71
Allowance for loan losses as a percentage of total nonperforming loans	131			130			120			116			94
Loans past due 90 days or more and still accruing	$	25		$	20		$	25		$	23		$	36
ANALYSIS OF NONACCRUAL LOANS
Nonaccrual loans at beginning of period	$	449		$	494		$	519		$	665		$	719
Loans transferred to nonaccrual (d)	50			37			34			36			35
Nonaccrual business loan gross charge-offs (e)	(25		)	(25		)	(34		)	(54		)	(46		)
Nonaccrual business loans sold (f)	(17		)	(9		)	(7		)	(48		)	(20		)
Payments/Other (g)	(20		)	(48		)	(18		)	(80		)	(23		)
Nonaccrual loans at end of period	$	437		$	449		$	494		$	519		$	665
(a) Primarily loans to real estate developers.
(b) Primarily loans secured by owner-occupied real estate.
(c) Excludes loans acquired with credit impairment.
(d) Based on an analysis of nonaccrual loans with book balances greater than $2 million.
(e) Analysis of gross loan charge-offs:
Nonaccrual business loans	$	25		$	25		$	34		$	54		$	46
Performing watch list loans	5			5			—			—			1
Consumer and residential mortgage loans	9			5			4			6			12
Total gross loan charge-offs	$	39		$	35		$	38		$	60		$	59
(f) Analysis of loans sold:
Nonaccrual business loans	$	17		$	9		$	7		$	48		$	20
Performing watch list loans	31			40			12			24			42
Total loans sold	$	48		$	49		$	19		$	72		$	62
(g) Includes net changes related to nonaccrual loans with balances less than $2 million, payments on nonaccrual loans with book balances greater than $2 million and transfers of nonaccrual loans to foreclosed property. Excludes business loan gross charge-offs and business nonaccrual loans sold.

16

ANALYSIS OF NET INTEREST INCOME (FTE) (unaudited)
Comerica Incorporated and Subsidiaries
	Nine Months Ended
	September 30, 2013							September 30, 2012
	Average					Average		Average					Average
(dollar amounts in millions)	Balance			Interest		Rate		Balance			Interest		Rate
Commercial loans	$	28,069		$	688	3.28	%	$	25,810		$	673	3.48	%
Real estate construction loans	1,430			43		3.98		1,420			47		4.48
Commercial mortgage loans	9,177			271		3.95		9,951			337		4.51
Lease financing	850			21		3.22		873			19		2.92
International loans	1,265			35		3.73		1,257			35		3.73
Residential mortgage loans	1,600			50		4.13		1,498			52		4.66
Consumer loans	2,142			53		3.32		2,225			57		3.44
Total loans (a)	44,533			1,161		3.49		43,034			1,220		3.79
Mortgage-backed securities available-for-sale	9,339			158		2.29		9,317			177		2.60
Other investment securities available-for-sale	390			1		0.48		486			3		0.78
Total investment securities available-for-sale	9,729			159		2.21		9,803			180		2.51
Interest-bearing deposits with banks (b)	4,433			9		0.26		3,908			8		0.26
Other short-term investments	115			1		1.38		138			1		1.80
Total earning assets	58,810			1,330		3.03		56,883			1,409		3.32
Cash and due from banks	993							967
Allowance for loan losses	(627		)					(707		)
Accrued income and other assets	4,534							4,865
Total assets	$	63,710						$	62,008
Money market and interest-bearing checking deposits	$	21,594		22		0.13		$	20,577		26		0.18
Savings deposits	1,654			—		0.03		1,589			1		0.06
Customer certificates of deposit	5,603			19		0.44		5,993			25		0.54
Foreign office time deposits	513			2		0.54		373			2		0.64
Total interest-bearing deposits	29,364			43		0.19		28,532			54		0.25
Short-term borrowings	189			—		0.07		78			—		0.12
Medium- and long-term debt	4,109			43		1.42		4,846			49		1.36
Total interest-bearing sources	33,662			86		0.34		33,456			103		0.41
Noninterest-bearing deposits	21,991							20,415
Accrued expenses and other liabilities	1,104							1,141
Total shareholders' equity	6,953							6,996
Total liabilities and shareholders' equity	$	63,710						$	62,008
Net interest income/rate spread (FTE)				$	1,244	2.69					$	1,306	2.91
FTE adjustment				$	2						$	2
Impact of net noninterest-bearing sources of funds						0.14							0.17
Net interest margin (as a percentage of average earning assets) (FTE) (a) (b)						2.83	%						3.08	%

(a) Accretion of the purchase discount on the acquired loan portfolio of $26 million and $58 million in the nine months ended September 30, 2013 and 2012, respectively, increased the net interest margin by 6 basis points and 14 basis points in each respective period.

(b) Excess liquidity, represented by average balances deposited with the Federal Reserve Bank, reduced the net interest margin by 20 basis points in both the nine months ended September 30, 2013 and 2012.

17

ANALYSIS OF NET INTEREST INCOME (FTE) (unaudited)
Comerica Incorporated and Subsidiaries
	Three Months Ended
	September 30, 2013							June 30, 2013							September 30, 2012
	Average					Average		Average					Average		Average					Average
(dollar amounts in millions)	Balance			Interest		Rate		Balance			Interest		Rate		Balance			Interest		Rate
Commercial loans	$	27,759		$	226	3.25	%	$	28,393		$	233	3.29	%	$	26,700		$	227	3.38	%
Real estate construction loans	1,522			15		3.78		1,453			15		4.04		1,389			15		4.36
Commercial mortgage loans	8,943			88		3.90		9,192			88		3.86		9,670			106		4.34
Lease financing	839			7		3.21		855			7		3.22		852			4		2.04
International loans	1,252			12		3.76		1,262			12		3.81		1,302			12		3.77
Residential mortgage loans	1,642			17		3.98		1,602			16		4.04		1,488			17		4.67
Consumer loans	2,137			17		3.27		2,136			18		3.30		2,196			19		3.44
Total loans (a)	44,094			382		3.44		44,893			389		3.47		43,597			400		3.66
Mortgage-backed securities available-for-sale	8,989			54		2.41		9,400			51		2.22		9,360			57		2.46
Other investment securities available-for-sale	391			—		0.43		393			1		0.52		431			1		0.86
Total investment securities available-for-sale	9,380			54		2.32		9,793			52		2.15		9,791			58		2.38
Interest-bearing deposits with banks (b)	5,308			4		0.26		4,125			3		0.26		4,276			3		0.26
Other short-term investments	110			—		0.77		117			—		1.05		137			—		1.88
Total earning assets	58,892			440		2.97		58,928			444		3.02		57,801			461		3.19
Cash and due from banks	1,027							972							971
Allowance for loan losses	(622		)					(625		)					(673		)
Accrued income and other assets	4,363							4,434							4,885
Total assets	$	63,660						$	63,709						$	62,984
Money market and interest-bearing checking deposits	$	21,894		7		0.13		$	21,544		8		0.13		$	20,483		8		0.17
Savings deposits	1,680			—		0.04		1,658			—		0.03		1,618			—		0.04
Customer certificates of deposit	5,384			6		0.41		5,685			6		0.43		5,894			8		0.52
Foreign office time deposits	528			—		0.48		485			1		0.60		381			1		0.71
Total interest-bearing deposits	29,486			13		0.18		29,372			15		0.19		28,376			17		0.24
Short-term borrowings	249			—		0.06		193			—		0.07		89			—		0.12
Medium- and long-term debt	3,590			14		1.54		4,044			14		1.43		4,745			16		1.35
Total interest-bearing sources	33,325			27		0.32		33,609			29		0.34		33,210			33		0.40
Noninterest-bearing deposits	22,379							22,076							21,469
Accrued expenses and other liabilities	1,033							1,042							1,260
Total shareholders' equity	6,923							6,982							7,045
Total liabilities and shareholders' equity	$	63,660						$	63,709						$	62,984
Net interest income/rate spread (FTE)				$	413	2.65					$	415	2.68					$	428	2.79
FTE adjustment				$	1						$	1						$	1
Impact of net noninterest-bearing sources of funds						0.14							0.15							0.17
Net interest margin (as a percentage of average earning assets) (FTE) (a) (b)						2.79	%						2.83	%						2.96	%

(a) Accretion of the purchase discount on the acquired loan portfolio of $8 million, $7 million and $15 million in the third and second quarters of 2013 and the third quarter of 2012, respectively, increased the net interest margin by 5 basis points, 5 basis points and 10 basis points in each respective period.

(b) Excess liquidity, represented by average balances deposited with the Federal Reserve Bank, reduced the net interest margin by 24 basis points and 18 basis points in the third and second quarters of 2013 and 21 basis points in the third quarter of 2012, respectively.

18

CONSOLIDATED STATISTICAL DATA (unaudited)
Comerica Incorporated and Subsidiaries
	September 30,			June 30,			March 31,			December 31,			September 30,
(in millions, except per share data)	2013			2013			2013			2012			2012
Commercial loans:
Floor plan	$	2,869		$	3,241		$	2,963		$	2,939		$	2,276
Other	25,028			25,945			25,545			26,574			25,184
Total commercial loans	27,897			29,186			28,508			29,513			27,460
Real estate construction loans:
Commercial Real Estate business line (a)	1,283			1,223			1,185			1,049			1,003
Other business lines (b)	269			256			211			191			389
Total real estate construction loans	1,552			1,479			1,396			1,240			1,392
Commercial mortgage loans:
Commercial Real Estate business line (a)	1,592			1,743			1,812			1,873			2,020
Other business lines (b)	7,193			7,264			7,505			7,599			7,539
Total commercial mortgage loans	8,785			9,007			9,317			9,472			9,559
Lease financing	829			843			853			859			837
International loans	1,286			1,209			1,269			1,293			1,277
Residential mortgage loans	1,650			1,611			1,568			1,527			1,495
Consumer loans:
Home equity	1,501			1,474			1,498			1,537			1,570
Other consumer	651			650			658			616			604
Total consumer loans	2,152			2,124			2,156			2,153			2,174
Total loans	$	44,151		$	45,459		$	45,067		$	46,057		$	44,194
Goodwill	$	635		$	635		$	635		$	635		$	635
Core deposit intangible	17			18			19			20			23
Loan servicing rights	1			2			2			2			2
Tier 1 common capital ratio (c) (d)	10.74		%	10.43		%	10.37		%	10.14		%	10.37		%
Tier 1 risk-based capital ratio (c)	10.74			10.43			10.37			10.14			10.37
Total risk-based capital ratio (c)	13.44			13.29			13.41			13.15			13.69
Leverage ratio (c)	10.88			10.81			10.75			10.57			10.78
Tangible common equity ratio (d)	9.87			10.04			9.86			9.76			10.30
Common shareholders' equity per share of common stock	$	37.94		$	37.32		$	37.41		$	36.87		$	37.01
Tangible common equity per share of common stock (d)	34.38			33.79			33.90			33.38			33.56
Market value per share for the quarter:
High	43.49			40.44			36.99			32.14			33.38
Low	38.56			33.55			30.73			27.72			29.32
Close	39.31			39.83			35.95			30.34			31.05
Quarterly ratios:
Return on average common shareholders' equity	8.50		%	8.23		%	7.68		%	7.36		%	6.67		%
Return on average assets	0.92			0.90			0.84			0.81			0.75
Efficiency ratio (e)	66.66			66.43			67.58			68.08			71.68
Number of banking centers	484			484			487			487			490
Number of employees - full time equivalent	8,918			8,929			9,001			9,035			9,079

(a) Primarily loans to real estate developers.

(b) Primarily loans secured by owner-occupied real estate.

(c) September 30, 2013 ratios are estimated.

(d) See Reconciliation of Non-GAAP Financial Measures.

(e) Noninterest expenses as a percentage of the sum of net interest income (FTE) and noninterest income excluding net securities gains.

19

PARENT COMPANY ONLY BALANCE SHEETS (unaudited)
Comerica Incorporated
	September 30,			December 31,			September 30,
(in millions, except share data)	2013			2012			2012
ASSETS
Cash and due from subsidiary bank	$	36		$	2		$	13
Short-term investments with subsidiary bank	480			431			418
Other short-term investments	92			88			88
Investment in subsidiaries, principally banks	7,008			7,045			7,200
Premises and equipment	4			4			4
Other assets	134			150			150
Total assets	$	7,754		$	7,720		$	7,873
LIABILITIES AND SHAREHOLDERS' EQUITY
Medium- and long-term debt	$	620		$	629		$	632
Other liabilities	165			149			157
Total liabilities	785			778			789
Common stock - $5 par value:
Authorized - 325,000,000 shares
Issued - 228,164,824 shares	1,141			1,141			1,141
Capital surplus	2,171			2,162			2,153
Accumulated other comprehensive loss	(541		)	(413		)	(253		)
Retained earnings	6,239			5,931			5,831
Less cost of common stock in treasury - 44,483,659 shares at 9/30/13, 39,889,610 shares at 12/31/12 and 36,790,174 shares at 9/30/12	(2,041		)	(1,879		)	(1,788		)
Total shareholders' equity	6,969			6,942			7,084
Total liabilities and shareholders' equity	$	7,754		$	7,720		$	7,873

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited)
Comerica Incorporated and Subsidiaries
								Accumulated
	Common Stock							Other									Total
	Shares				Capital			Comprehensive			Retained			Treasury			Shareholders'
(in millions, except per share data)	Outstanding		Amount		Surplus			Loss			Earnings			Stock			Equity
BALANCE AT DECEMBER 31, 2011	197.3		$	1,141	$	2,170		$	(356	)	$	5,546		$	(1,633	)	$	6,868
Net income	—		—		—			—			391			—			391
Other comprehensive income, net of tax	—		—		—			103			—			—			103
Cash dividends declared on common stock ($0.40 per share)	—		—		—			—			(78		)	—			(78		)
Purchase of common stock	(7.1	)	—		—			—			—			(215		)	(215		)
Net issuance of common stock under employee stock plans	1.2		—		(48		)	—			(28		)	62			(14		)
Share-based compensation	—		—		29			—			—			—			29
Other	—		—		2			—			—			(2		)	—
BALANCE AT SEPTEMBER 30, 2012	191.4		$	1,141	$	2,153		$	(253	)	$	5,831		$	(1,788	)	$	7,084
BALANCE AT DECEMBER 31, 2012	188.3		$	1,141	$	2,162		$	(413	)	$	5,931		$	(1,879	)	$	6,942
Net income	—		—		—			—			424			—			424
Other comprehensive loss, net of tax	—		—		—			(128		)	—			—			(128		)
Cash dividends declared on common stock ($0.51 per share)	—		—		—			—			(95		)	—			(95		)
Purchase of common stock	(5.8	)	—		—			—			—			(218		)	(218		)
Net issuance of common stock under employee stock plans	1.2		—		(18		)	—			(21		)	56			17
Share-based compensation	—		—		27			—			—			—			27
BALANCE AT SEPTEMBER 30, 2013	183.7		$	1,141	$	2,171		$	(541	)	$	6,239		$	(2,041	)	$	6,969

20

BUSINESS SEGMENT FINANCIAL RESULTS (unaudited)
Comerica Incorporated and Subsidiaries
(dollar amounts in millions)	Business			Retail			Wealth
Three Months Ended September 30, 2013	Bank			Bank			Management			Finance			Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	368		$	151		$	45		$	(159	)	$	8		$	413
Provision for credit losses	(1		)	10			1			—			(2		)	8
Noninterest income	89			45			61			18			1			214
Noninterest expenses	153			177			81			2			4			417
Provision (benefit) for income taxes (FTE)	96			3			9			(56		)	3			55
Net income (loss)	$	209		$	6		$	15		$	(87	)	$	4		$	147
Net credit-related charge-offs	$	9		$	7		$	3		—			—			$	19
Selected average balances:
Assets	$	35,298		$	5,967		$	4,789		$	11,097		$	6,509		$	63,660
Loans	34,178			5,285			4,631			—			—			44,094
Deposits	26,284			21,257			3,782			319			223			51,865
Statistical data:
Return on average assets (a)	2.38		%	0.12		%	1.21		%	N/M			N/M			0.92		%
Efficiency ratio (b)	33.50			90.27			77.22			N/M			N/M			66.66
	Business			Retail			Wealth
Three Months Ended June 30, 2013	Bank			Bank			Management			Finance			Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	372		$	154		$	46		$	(165	)	$	8		$	415
Provision for credit losses	10			5			(3		)	—			1			13
Noninterest income	80			46			65			15			2			208
Noninterest expenses	147			178			77			3			11			416
Provision (benefit) for income taxes (FTE)	88			6			13			(55		)	(1		)	51
Net income (loss)	$	207		$	11		$	24		$	(98	)	$	(1	)	$	143
Net credit-related charge-offs	$	11		$	4		$	2		—			—			$	17
Selected average balances:
Assets	$	36,017		$	5,962		$	4,828		$	11,514		$	5,388		$	63,709
Loans	34,955			5,271			4,667			—			—			44,893
Deposits	25,987			21,241			3,701			283			236			51,448
Statistical data:
Return on average assets (a)	2.30		%	0.20		%	2.00		%	N/M			N/M			0.90		%
Efficiency ratio (b)	32.41			87.98			69.86			N/M			N/M			66.43
	Business			Retail			Wealth
Three Months Ended September 30, 2012	Bank			Bank			Management			Finance			Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	380		$	161		$	47		$	(170	)	10			$	428
Provision for credit losses	15			6			4			—			(3		)	22
Noninterest income	76			41			62			14			4			197
Noninterest expenses	145			181			77			3			43			449
Provision (benefit) for income taxes (FTE)	89			5			10			(59		)	(8		)	37
Net income (loss)	$	207		$	10		$	18		$	(100	)	$	(18	)	$	117
Net credit-related charge-offs	$	27		$	13		$	3		—			—			$	43
Selected average balances:
Assets	$	34,861		$	5,964		$	4,566		$	11,873		$	5,720		$	62,984
Loans	33,856			5,265			4,476			—			—			43,597
Deposits	25,142			20,682			3,667			181			173			49,845
Statistical data:
Return on average assets (a)	2.38		%	0.19		%	1.59		%	N/M			N/M			0.75		%
Efficiency ratio (b)	31.67			89.07			71.04			N/M			N/M			71.68

(a) Return on average assets is calculated based on the greater of average assets or average liabilities and attributed equity.

(b) Noninterest expenses as a percentage of the sum of net interest income (FTE) and noninterest income excluding net securities gains.

FTE - Fully Taxable Equivalent

N/M - Not Meaningful

21

MARKET SEGMENT FINANCIAL RESULTS (unaudited)
Comerica Incorporated and Subsidiaries
(dollar amounts in millions)										Other			Finance
Three Months Ended September 30, 2013	Michigan			California			Texas			Markets			& Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	186		$	171		$	129		$	78		$	(151	)	$	413
Provision for credit losses	(8		)	(3		)	17			4			(2		)	8
Noninterest income	88			42			35			30			19			214
Noninterest expenses	167			101			92			51			6			417
Provision (benefit) for income taxes (FTE)	42			44			20			2			(53		)	55
Net income (loss)	$	73		$	71		$	35		$	51		$	(83	)	$	147
Net credit-related charge-offs	$	1		$	8		$	4		$	6		$	—		$	19
Selected average balances:
Assets	$	13,744		$	14,245		$	10,642		$	7,423		$	17,606		$	63,660
Loans	13,276			14,002			9,942			6,874			—			44,094
Deposits	20,465			14,567			10,298			5,993			542			51,865
Statistical data:
Return on average assets (a)	1.38		%	1.84		%	1.21		%	2.73		%	N/M			0.92		%
Efficiency ratio (b)	60.89			47.37			56.52			47.65			N/M			66.66
										Other			Finance
Three Months Ended June 30, 2013	Michigan			California			Texas			Markets			& Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	187		$	173		$	131		$	81		$	(157	)	$	415
Provision for credit losses	(4		)	7			6			3			1			13
Noninterest income	88			36			34			33			17			208
Noninterest expenses	161			100			89			52			14			416
Provision (benefit) for income taxes (FTE)	41			37			24			5			(56		)	51
Net income (loss)	$	77		$	65		$	46		$	54		$	(99	)	$	143
Net credit-related charge-offs	$	4		$	12		$	(3	)	$	4		$	—		$	17
Selected average balances:
Assets	$	14,022		$	14,155		$	10,886		$	7,744		$	16,902		$	63,709
Loans	13,598			13,912			10,179			7,204			—			44,893
Deposits	20,159			14,671			10,187			5,912			519			51,448
Statistical data:
Return on average assets (a)	1.47		%	1.65		%	1.62		%	2.79		%	N/M			0.90		%
Efficiency ratio (b)	58.17			47.73			53.39			46.04			N/M			66.43
										Other			Finance
Three Months Ended September 30, 2012	Michigan			California			Texas			Markets			& Other			Total
Earnings summary:
Net interest income (expense) (FTE)	$	193		$	176		$	138		$	81		$	(160	)	$	428
Provision for credit losses	2			6			10			7			(3		)	22
Noninterest income	95			33			30			21			18			197
Noninterest expenses	175			98			89			41			46			449
Provision (benefit) for income taxes (FTE)	40			38			25			1			(67		)	37
Net income (loss)	$	71		$	67		$	44		$	53		$	(118	)	$	117
Net credit-related charge-offs	$	12		$	11		$	7		$	13		$	—		$	43
Selected average balances:
Assets	$	13,785		$	13,171		$	10,324		$	8,111		$	17,593		$	62,984
Loans	13,475			12,915			9,585			7,622			—			43,597
Deposits	19,628			14,964			9,941			4,958			354			49,845
Statistical data:
Return on average assets (a)	1.39		%	1.69		%	1.62		%	2.53		%	N/M			0.75		%
Efficiency ratio (b)	60.06			46.68			52.96			41.78			N/M			71.68

(a) Return on average assets is calculated based on the greater of average assets or average liabilities and attributed equity.

(b) Noninterest expenses as a percentage of the sum of net interest income (FTE) and noninterest income excluding net securities gains.

FTE - Fully Taxable Equivalent

N/M - Not Meaningful

22

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (unaudited)
Comerica Incorporated and Subsidiaries
	September 30,			June 30,			March 31,			December 31,			September 30,
(dollar amounts in millions)	2013			2013			2013			2012			2012
Tier 1 Common Capital Ratio:
Tier 1 and Tier 1 common capital (a) (b)	$	6,863		$	6,800		$	6,748		$	6,705		$	6,685
Risk-weighted assets (a) (b)	$	63,917		$	65,220		$	65,099		$	66,115		$	64,486
Tier 1 and Tier 1 common risk-based capital ratio (b)	10.74		%	10.43		%	10.37		%	10.14		%	10.37		%
Basel III Tier 1 Common Capital Ratio:
Tier 1 common capital (b)	$	6,863		$	6,800		$	6,748		$	6,705		$	6,685
Basel III adjustments (c)	—			—			(1		)	(39		)	(17		)
Basel III Tier 1 common capital (c)	6,863			6,800			6,747			6,666			6,668
Risk-weighted assets (a) (b)	$	63,917		$	65,220		$	65,099		$	66,115		$	64,486
Basel III adjustments (c)	2,295			2,091			1,996			1,854			2,313
Basel III risk-weighted assets (c)	$	66,212		$	67,311		$	67,095		$	67,969		$	66,799
Tier 1 common capital ratio (b)	10.7		%	10.4		%	10.4		%	10.1		%	10.4		%
Basel III Tier 1 common capital ratio (c)	10.4			10.1			10.1			9.8			10.0
Tangible Common Equity Ratio:
Common shareholders' equity	$	6,969		$	6,911		$	6,988		$	6,942		$	7,084
Less:
Goodwill	635			635			635			635			635
Other intangible assets	18			20			21			22			25
Tangible common equity	$	6,316		$	6,256		$	6,332		$	6,285		$	6,424
Total assets	$	64,670		$	62,947		$	64,885		$	65,069		$	63,000
Less:
Goodwill	635			635			635			635			635
Other intangible assets	18			20			21			22			25
Tangible assets	$	64,017		$	62,292		$	64,229		$	64,412		$	62,340
Common equity ratio	10.78		%	10.98		%	10.77		%	10.67		%	11.24		%
Tangible common equity ratio	9.87			10.04			9.86			9.76			10.30
Tangible Common Equity per Share of Common Stock:
Common shareholders' equity	$	6,969		$	6,911		$	6,988		$	6,942		$	7,084
Tangible common equity	6,316			6,256			6,332			6,285			6,424
Shares of common stock outstanding (in millions)	184			185			187			188			191
Common shareholders' equity per share of common stock	$	37.94		$	37.32		$	37.41		$	36.87		$	37.01
Tangible common equity per share of common stock	34.38			33.79			33.90			33.38			33.56

(a) Tier 1 capital and risk-weighted assets as defined by regulation.

(b) September 30, 2013 Tier 1 capital and risk-weighted assets are estimated.

(c) Estimated ratios based on the standardized approach in the final rule for the U.S. adoption of the Basel III regulatory capital framework and excluding most elements of AOCI.

The Tier 1 common capital ratio removes preferred stock and qualifying trust preferred securities from Tier 1 capital as defined by and calculated in conformity with bank regulations. The Basel III Tier 1 common capital ratio further adjusts Tier 1 common capital and risk-weighted assets to account for the final rule approved by U.S. banking regulators in July 2013 for the U.S. adoption of the Basel III regulatory capital framework. The final Basel III capital rules are effective January 1, 2015 for banking organizations subject to the standardized approach. The tangible common equity ratio removes preferred stock and the effect of intangible assets from capital and the effect of intangible assets from total assets. Tangible common equity per share of common stock removes the effect of intangible assets from common shareholders equity per share of common stock. Comerica believes these measurements are meaningful measures of capital adequacy used by investors, regulators, management and others to evaluate the adequacy of common equity and to compare against other companies in the industry.

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