N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

Quarterly Schedule of Portfolio Holdings of

Registered Management Investment Company

Investment Company Act File Number: 811-01435

AMCAP Fund, Inc.

(Exact name of registrant as specified in charter)

333 South Hope Street,

Los Angeles, California 90071

(Address of principal executive offices)

Registrant's telephone number, including area code: (213) 486-9200

Date of fiscal year end: February 28 or 29

Date of reporting period: November 30, 2006

Vincent P. Corti

Capital Research and Management Company

333 South Hope Street

Los Angeles, California 90071

(Name and address of agent for service)

Copies to:

Eric A.S. Richards

O’Melveny & Myers LLP

400 South Hope Street

Los Angeles, California 90071

(Counsel for the registrant)

ITEM 1 - Schedule of Investments

[logo - American Funds®]

AMCAP Fund

Investment portfolio

November 30, 2006

unaudited

Common stocks — 86.36%	Shares			Market value (000)
INFORMATION TECHNOLOGY — 21.00%
Cisco Systems, Inc.1		24,604,300		$	661,364
Intel Corp.		30,232,000			645,453
Oracle Corp.1		32,671,659			621,742
Google Inc., Class A1		1,030,000			499,468
eBay Inc.1		14,245,000			460,826
Microsoft Corp.		15,595,000			457,401
Texas Instruments Inc.		6,250,000			184,687
Affiliated Computer Services, Inc., Class A1		3,610,000			182,485
Automatic Data Processing, Inc.		3,500,000			168,805
First Data Corp.		4,680,000			118,170
Maxim Integrated Products, Inc.		3,375,000			106,245
Altera Corp.1		5,250,000			104,423
Linear Technology Corp.		3,200,000			102,848
Intuit Inc.1		3,100,000			97,588
Microchip Technology Inc.		2,500,000			85,275
Intersil Corp., Class A		3,400,000			84,218
NAVTEQ Corp.1		2,353,500			84,185
Yahoo! Inc.1		3,000,000			80,970
Analog Devices, Inc.		2,213,200			71,973
Xilinx, Inc.		2,500,000			67,000
EMC Corp.1		5,000,000			65,550
Paychex, Inc.		1,600,000			63,056
Rogers Corp.1		750,000			52,110
Applied Materials, Inc.		2,700,000			48,546
KLA-Tencor Corp.		700,000			36,169
Dell Inc.1		1,200,000			32,688
Jabil Circuit, Inc.		1,087,000			30,827
Sabre Holdings Corp., Class A		888,800			24,380
National Instruments Corp.		768,750			22,355
Solectron Corp.1		5,500,000			18,315
Cadence Design Systems, Inc.1		796,400			14,638
Fidelity National Information Services, Inc.		113,933			4,546
					5,298,306
CONSUMER DISCRETIONARY — 19.14%
Lowe’s Companies, Inc.		20,800,000			627,328
Target Corp.		9,250,000			537,333
Carnival Corp., units		8,525,200			417,650
Best Buy Co., Inc.		6,300,000			346,311
Johnson Controls, Inc.		3,390,000			275,709
YUM! Brands, Inc.		3,738,000			228,728
Harley-Davidson, Inc.		2,896,900			213,704
Williams-Sonoma, Inc.2		6,000,000			190,320
Ross Stores, Inc.		5,775,000			178,967
Time Warner Inc.		7,647,500			154,021
E.W. Scripps Co., Class A		3,100,000			151,466
Brinker International, Inc.		3,125,000			142,094
Walt Disney Co.		4,000,000			132,200
Tractor Supply Co.1,2		2,525,000			120,190
Harman International Industries, Inc.		1,100,000			114,224
Liberty Media Holding Corp., Liberty Capital, Series A1		700,000			61,544
Liberty Media Holding Corp., Liberty Interactive, Series A1		1,750,000			39,830
Comcast Corp., Class A, special nonvoting stock1		2,500,000			100,700
Dollar General Corp.		6,250,000			97,125
Amazon.com, Inc.1		2,400,000			96,816
IAC/InterActiveCorp1		2,557,500			93,323
Kohl’s Corp.1		1,275,000			88,740
OSI Restaurant Partners, Inc.		2,250,000			87,975
Gentex Corp.		5,130,000			85,004
P.F. Chang’s China Bistro, Inc.1,2		1,650,000			59,565
Applebee’s International, Inc.		2,500,000			56,875
Discovery Holding Co., Class A1		3,245,000			49,778
Expedia, Inc.1		2,507,600			45,563
Fossil, Inc.1		1,850,000			38,887
					4,831,970
HEALTH CARE — 15.87%
UnitedHealth Group Inc.		11,950,500			586,531
WellPoint, Inc.1		6,700,000			506,989
Medtronic, Inc.		5,200,000			271,076
Forest Laboratories, Inc.1		5,165,000			251,535
Medco Health Solutions, Inc.1		4,510,000			226,447
Alcon, Inc.		1,730,000			189,643
St. Jude Medical, Inc.1		4,929,200			183,711
Roche Holding AG		982,000			177,420
Cephalon, Inc.1		2,000,000			149,720
Medicis Pharmaceutical Corp., Class A2		3,625,000			133,690
Amgen Inc.1		1,875,000			133,125
Express Scripts, Inc.1		1,930,000			131,626
Biogen Idec Inc.1		2,380,000			124,379
Caremark Rx, Inc.		2,300,000			108,790
Lincare Holdings Inc.1		2,800,000			105,476
Bristol-Myers Squibb Co.		4,225,000			104,907
IDEXX Laboratories, Inc.1		1,100,000			93,115
Becton, Dickinson and Co.		1,200,000			86,064
Genentech, Inc.1		1,000,000			81,750
Abbott Laboratories		1,400,000			65,324
McKesson Corp.		1,100,000			54,340
Haemonetics Corp.1		1,190,000			53,883
Eli Lilly and Co.		900,000			48,231
Boston Scientific Corp.1		2,547,890			40,308
AstraZeneca PLC (Sweden)		660,000			38,214
Johnson & Johnson		500,000			32,955
Henry Schein, Inc.1		500,000			25,765
					4,005,014
FINANCIALS — 8.06%
Fannie Mae		8,640,000			492,739
Capital One Financial Corp.		4,901,200			381,705
American International Group, Inc.		4,365,000			306,947
Wachovia Corp.		3,307,008			179,207
Freddie Mac		2,550,000			171,258
Wells Fargo & Co.		3,440,000			121,226
M&T Bank Corp.		959,230			113,803
Commerce Bancorp, Inc.		3,000,000			104,280
Bank of New York Co., Inc.		1,740,000			61,840
North Fork Bancorporation, Inc.		1,750,000			49,122
City National Corp.		510,000			34,588
Arthur J. Gallagher & Co.		600,000			17,574
					2,034,289
CONSUMER STAPLES — 6.41%
L’Oréal SA		2,224,893			224,206
Altria Group, Inc.		2,500,000			210,525
PepsiCo, Inc.		3,300,000			204,501
Bunge Ltd.		2,010,600			141,747
Avon Products, Inc.		4,000,000			130,560
CVS Corp.		4,500,000			129,465
Church & Dwight Co., Inc.		2,867,800			120,190
Dean Foods Co.1		2,500,000			107,050
Wm. Wrigley Jr. Co.		1,870,000			98,063
Costco Wholesale Corp.		1,600,000			83,616
Walgreen Co.		1,600,000			64,784
Anheuser-Busch Companies, Inc.		1,187,800			56,432
Wal-Mart Stores, Inc.		1,000,000			46,100
					1,617,239
ENERGY — 6.17%
Schlumberger Ltd.		5,310,000			363,629
Devon Energy Corp.		3,020,000			221,577
Newfield Exploration Co.1		3,795,000			188,877
Apache Corp.		2,150,000			150,350
EOG Resources, Inc.		2,122,900			149,728
FMC Technologies, Inc.1		2,285,000			137,123
Murphy Oil Corp.		2,200,000			119,416
Noble Corp.		1,200,000			92,700
Smith International, Inc.		2,130,000			90,227
ConocoPhillips		650,000			43,745
					1,557,372
INDUSTRIALS — 5.46%
Precision Castparts Corp.		3,640,000			274,674
Robert Half International Inc.		6,800,000			262,412
United Parcel Service, Inc., Class B		3,200,000			249,344
General Electric Co.		5,400,000			190,512
Avery Dennison Corp.		1,744,200			117,681
FedEx Corp.		790,000			91,190
Mine Safety Appliances Co.2		1,942,750			70,153
United Technologies Corp.		1,000,000			64,530
Southwest Airlines Co.		3,685,000			57,891
					1,378,387
TELECOMMUNICATION SERVICES — 2.51%
Sprint Nextel Corp., Series 1		15,788,904		$	308,042
Telephone and Data Systems, Inc., Special Common Shares		2,000,000			96,300
Telephone and Data Systems, Inc.		1,575,000			81,364
CenturyTel, Inc.		2,690,000			114,459
United States Cellular Corp.1		501,600			33,768
					633,933
MATERIALS — 0.28%
Sealed Air Corp.		1,200,000			71,412
UTILITIES — 0.17%
Duke Energy Corp.		1,299,000			41,204
MISCELLANEOUS — 1.29%
Other common stocks in initial period of acquisition					325,505
Total common stocks (cost: $16,040,733,000)					21,794,631
Short-term securities — 13.68%		Principal amount (000	)
Freddie Mac 5.075%-5.17% due 12/19/2006-3/9/2007	$	348,217			344,984
Edison Asset Securitization LLC 5.23%-5.25% due 12/13/2006-2/13/20073		195,800			194,562
General Electric Capital Services, Inc. 5.24% due 1/29/2007		54,200			53,734
Federal Home Loan Bank 5.065%-5.19% due 12/1/2006-1/24/2007		243,400			242,552
CAFCO, LLC 5.24%-5.26% due 12/7/2006-1/29/20073		173,900			173,040
Ciesco LLC 5.26% due 1/8/20073		50,000			49,715
Bank of America Corp. 5.23%-5.25% due 12/6/2006-2/16/2007		179,800			178,920
Ranger Funding Co. LLC 5.25% due 12/13/20063		25,000			24,953
Procter & Gamble Co. 5.21% due 12/1-12/14/20063		202,800			202,556
Clipper Receivables Co., LLC 5.23%-5.25% due 12/7/2006-1/30/20073		188,300			187,314
Variable Funding Capital Corp. 5.23%-5.25% due 12/26/2006-1/19/20073		185,000			184,008
Wal-Mart Stores Inc. 5.20%-5.21% due 12/5-12/19/20063		176,300			176,012
Park Avenue Receivables Co., LLC 5.22%-5.25% due 12/6/2006-1/22/20073		101,252			101,004
Jupiter Securitization Co., LLC 5.24%-5.25% due 1/24-2/5/20073		53,856			53,398
CIT Group, Inc. 5.23%-5.24% due 1/16-3/5/20073		90,900			89,884
CIT Group, Inc. 5.26% due 1/16-1/18/2007		55,786			55,407
Coca-Cola Co. 5.19% due 12/11-12/20/20063		100,000			99,756
Atlantic Industries 5.20% due 12/19/20063		18,300			18,250
Fannie Mae 5.07%-5.155% due 12/6/2006-2/1/2007		105,800			105,100
International Lease Finance Corp. 5.21%-5.24% due 12/21/2006-1/17/2007		79,200			78,753
American General Finance Corp. 5.22% due 12/14/2006		25,000			24,951
3M Co. 5.17% due 12/1-12/20/2006		85,000			84,878
Private Export Funding Corp. 5.24%-5.26% due 2/27-2/28/20073		78,000			76,990
Illinois Tool Works Inc. 5.21% due 12/6-12/15/2006		71,800			71,690
IBM Corp. 5.16%-5.20% due 12/4-12/20/20063		62,025			61,944
Three Pillars Funding, LLC 5.26% due 12/15/20063		50,000			49,890
Abbott Laboratories 5.19% due 12/21/20063		50,000			49,848
Federal Farm Credit Banks 5.135%-5.14% due 12/28/2006-1/31/2007		50,000			49,698
BellSouth Corp. 5.21% due 12/5/20063		48,200			48,165
Harvard University 5.17% due 12/18/2006		40,000			39,896
Triple-A One Funding Corp. 5.25% due 12/11/20063		33,400			33,346
HSBC Finance Corp. 5.21% due 2/12/2007		30,700			30,372
NetJets Inc. 5.18% due 12/15/20063		30,000			29,935
FCAR Owner Trust I 5.25% due 12/1/2006		27,900			27,896
Tennessee Valley Authority 5.135% due 12/14/2006		25,000			24,947
Bank of New York Co., Inc. 5.20% due 12/15/2006		25,000			24,946
Colgate-Palmolive Co. 5.16% due 12/29/20063		25,000			24,899
Hewlett-Packard Co. 5.23% due 1/11/20073		25,000			24,847
AT&T Inc. 5.27% due 1/11/20073		21,500			21,368
Caterpillar Financial Services Corp. 5.19% due 12/4/2006		20,000			19,988
Emerson Electric Co. 5.20% due 12/11/20063		9,600			9,585
Harley-Davidson Funding Corp. 5.19% due 12/12/20063		9,000			8,984
Total short-term securities (cost: $3,452,882,000)					3,452,965
Total investment securities (cost: $19,493,615,000)					25,247,596
Other assets less liabilities					(10,138	)
Net assets				$	25,237,458

“Miscellaneous” securities include holdings in their initial period of acquisition that have not previously been publicly disclosed.

¹Security did not produce income during the last 12 months.

²The fund owns 5% or more of the outstanding voting shares of this company. See table below for additional information.

³Restricted security that can be resold only to institutional investors. In practice, this security is typically as liquid as unrestricted securities

in the portfolio. The total value of all restricted securities was $1,994,253,000, which represented 7.90% of the net assets of the fund.

Investments in affiliates

A company is considered to be an affiliate of the fund under the Investment Company Act of 1940 if the fund’s holdings in that company represent 5% or more of the outstanding voting shares of that company. Further details on these holdings and related transactions during the nine months ended November 30, 2006, appear below.

Company	Beginning shares		Purchases		Sales		Ending shares		Dividend income (000)		Market value of affiliates at 11/30/06 (000)
Williams-Sonoma		3,205,200		2,794,800		—		6,000,000	$	1,411	$	190,320
Medicis Pharmaceutical		3,625,000		—		—		3,625,000		326		133,690
Tractor Supply		—		2,525,000		—		2,525,000		—		120,190
Mine Safety Appliances		—		1,942,750		—		1,942,750		876		70,153
P.F. Chang’s China Bistro		1,000,000		650,000		—		1,650,000		—		59,565
Fossil*		4,415,000		—		2,565,000		1,850,000		—		—
OSI Restaurant Partners*		3,750,000		—		1,500,000		2,250,000		1,073		—
Power Integrations*		1,850,000		—		1,850,000		—		—		—
									$	3,686	$	573,918

^*Unaffiliated issuer at 11/30/2006.

Federal income tax information	(dollars in thousands)
Gross unrealized appreciation on investment securities	$	5,903,693
Gross unrealized depreciation on investment securities		(151,244	)
Net unrealized appreciation on investment securities		5,752,449
Cost of investment securities for federal income tax purposes		19,495,147

Investments are not FDIC-insured, nor are they deposits of or guaranteed by a bank or any other entity, so you may lose money.

Investors should carefully consider the investment objectives, risks, charges and expenses of the American Funds. This and other important information is contained in each fund’s prospectus, which can be obtained from a financial adviser and should be read carefully before investing.

MFGEFP-902-0107-S6874

ITEM 2 - Controls and Procedures

The Registrant’s Principal Executive Officer and Principal Financial Officer have concluded, based on their evaluation of the Registrant’s disclosure controls and procedures (as such term is defined in Rule 30a-3 under the Investment Company Act of 1940), that such controls and procedures are adequate and reasonably designed to achieve the purposes described in paragraph (c) of such rule.

There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) that occurred during the Registrant’s last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

ITEM 3 - Exhibits

The certifications required by Rule 30a-2 of the Investment Company Act of 1940, as amended, and Section 302 of the Sarbanes-Oxley Act of 2002 are attached as exhibits hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

AMCAP FUND, INC.

By /s/ Claudia P. Huntington

Claudia P. Huntington, President and

Principal Executive Officer

Date: January 26, 2007

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By /s/ Claudia P. Huntington

Claudia P. Huntington, President and

Principal Executive Officer

Date: January 26, 2007

By /s/ Karl C. Grauman

Karl C. Grauman, Treasurer and

Principal Financial Officer

Date: January 26, 2007

EX-99.CERT

[logo - American Funds®] AMCAP Fund, Inc. 333 South Hope Street Los Angeles, California 90071 Phone (213) 486-9200

CERTIFICATION

I, Claudia P. Huntington, certify that:

1.	I have reviewed this report on Form N-Q of AMCAP Fund, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which this report is filed;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal controls over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:
	a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and
	d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):
	a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and
	b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: January 26, 2007

/s/ Claudia P. Huntington

Claudia P. Huntington, President and

Principal Executive Officer

AMCAP Fund, Inc.

[logo - American Funds®] AMCAP Fund, Inc. 333 South Hope Street Los Angeles, California 90071 Phone (213) 486-9200

CERTIFICATION

I, Karl C. Grauman, certify that:

1.	I have reviewed this report on Form N-Q of AMCAP Fund, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which this report is filed;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal controls over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:
	a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and
	d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):
	a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and
	b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: January 26, 2007

/s/ Karl C. Grauman

Karl C. Grauman, Treasurer and

Principal Financial Officer

AMCAP Fund, Inc.