485BPOS

Registration Nos. 002-12171/811-696

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933/X/

Post-Effective Amendment No. 128/X/

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 /X/

Amendment No. 126/X/

T. ROWE PRICE SMALL-CAP STOCK FUND, INC.

Exact Name of Registrant as Specified in Charter

100 East Pratt Street, Baltimore, Maryland 21202
Address of Principal Executive Offices

410-345-2000
Registrant’s Telephone Number, Including Area Code

David Oestreicher

100 East Pratt Street, Baltimore, Maryland 21202
Name and Address of Agent for Service

It is proposed that this filing will become effective (check appropriate box):

/X/Immediately upon filing pursuant to paragraph (b)

//On (date) pursuant to paragraph (b)

//60 days after filing pursuant to paragraph (a)(1)

//On (date) pursuant to paragraph (a)(1)

//75 days after filing pursuant to paragraph (a)(2)

//On (date) pursuant to paragraph (a)(2) of Rule 485

Page 2

If appropriate, check the following box:

//This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Page 3

EXHIBITS

Exhibit	Exhibit No.
XBRL Instance Document	EX-101.INS
XBRL Taxonomy Extension Schema Document	EX-101.SCH
XBRL Taxonomy Extension Calculation Linkbase Document	EX-101.CAL
XBRL Taxonomy Extension Definition Linkbase Document	EX-101.DEF
XBRL Taxonomy Extension Labels Linkbase Document	EX-101.LAB
XBRL Taxonomy Extension Presentation Linkbase Document	EX-101.PRE

Page 4

Signatures

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Baltimore, State of Maryland, this March 12, 2020.

T. ROWE PRICE SMALL-CAP STOCK FUND, INC.

/s/David Oestreicher

By:David Oestreicher

Director and Executive Vice President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated:

Signature	Title	Date
/s/David Oestreicher	Director (Principal Executive Officer)	March 12, 2020
David Oestreicher	and Executive Vice President
/s/Alan S. Dupski	Treasurer	March 12, 2020
Alan S. Dupski	(Principal Financial Officer)
	and Vice President
*
Teresa Bryce Bazemore	Director	March 12, 2020
*
Ronald J. Daniels	Director	March 12, 2020
*
Bruce W. Duncan	Director	March 12, 2020
*
Robert J. Gerrard, Jr.	Chairman of the Board	March 12, 2020
	and Director
*
Paul F. McBride	Director	March 12, 2020
*
Cecilia E. Rouse	Director	March 12, 2020
*
John G. Schreiber	Director	March 12, 2020

Page 5

/s/Robert W. Sharps	Director	March 12, 2020
Robert W. Sharps
*/s/David Oestreicher	Attorney-In-Fact	March 12, 2020
David Oestreicher

Page 6

T. ROWE PRICE BALANCED FUND, INC.

T. ROWE PRICE BLUE CHIP GROWTH FUND, INC.

T. ROWE PRICE CAPITAL APPRECIATION FUND, INC.

T. ROWE PRICE CAPITAL OPPORTUNITY FUND, INC.

T. ROWE PRICE COMMUNICATIONS & TECHNOLOGY FUND, INC.

T. ROWE PRICE CORPORATE INCOME FUND, INC.

T. ROWE PRICE CREDIT OPPORTUNITIES FUND, INC.

T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC.

T. ROWE PRICE DIVIDEND GROWTH FUND, INC.

T. ROWE PRICE EQUITY INCOME FUND, INC.

T. ROWE PRICE EQUITY SERIES, INC.

T. ROWE PRICE FINANCIAL SERVICES FUND, INC.

T. ROWE PRICE FIXED INCOME SERIES, INC.

T. ROWE PRICE FLOATING RATE FUND, INC.

T. ROWE PRICE GLOBAL ALLOCATION FUND, INC.

T. ROWE PRICE GLOBAL MULTI-SECTOR BOND FUND, INC.

T. ROWE PRICE GLOBAL REAL ESTATE FUND, INC.

T. ROWE PRICE GLOBAL TECHNOLOGY FUND, INC.

T. ROWE PRICE GNMA FUND, INC.

T. ROWE PRICE GOVERNMENT MONEY FUND, INC.

T. ROWE PRICE GROWTH & INCOME FUND, INC.

T. ROWE PRICE GROWTH STOCK FUND, INC.

T. ROWE PRICE HEALTH SCIENCES FUND, INC.

T. ROWE PRICE HIGH YIELD FUND, INC.

T. ROWE PRICE INDEX TRUST, INC.

T. ROWE PRICE INFLATION PROTECTED BOND FUND, INC.

T. ROWE PRICE INSTITUTIONAL EQUITY FUNDS, INC.

T. ROWE PRICE INSTITUTIONAL INCOME FUNDS, INC.

T. ROWE PRICE INSTITUTIONAL INTERNATIONAL FUNDS, INC.

T. ROWE PRICE INTERMEDIATE TAX-FREE HIGH YIELD FUND, INC.

T. ROWE PRICE INTERNATIONAL FUNDS, INC.

T. ROWE PRICE INTERNATIONAL INDEX FUND, INC.

T. ROWE PRICE INTERNATIONAL SERIES, INC.

T. ROWE PRICE LIMITED DURATION INFLATION FOCUSED BOND FUND, INC.

T. ROWE PRICE MID-CAP GROWTH FUND, INC.

T. ROWE PRICE MID-CAP VALUE FUND, INC.

T. ROWE PRICE MULTI-SECTOR ACCOUNT PORTFOLIOS, INC.

T. ROWE PRICE MULTI-STRATEGY TOTAL RETURN FUND, INC.

T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.
T. ROWE PRICE NEW ERA FUND, INC.

T. ROWE PRICE NEW HORIZONS FUND, INC.

T. ROWE PRICE NEW INCOME FUND, INC.

T. ROWE PRICE PERSONAL STRATEGY FUNDS, INC.

T. ROWE PRICE QUANTITATIVE MANAGEMENT FUNDS, INC.

T. ROWE PRICE REAL ASSETS FUND, INC.

T. ROWE PRICE REAL ESTATE FUND, INC.

T. ROWE PRICE RESERVE INVESTMENT FUNDS, INC.

T. ROWE PRICE RETIREMENT FUNDS, INC.

T. ROWE PRICE SCIENCE & TECHNOLOGY FUND, INC.

T. ROWE PRICE SHORT-TERM BOND FUND, INC.

Page 7

T. ROWE PRICE SMALL-CAP STOCK FUND, INC.

T. ROWE PRICE SMALL-CAP VALUE FUND, INC.

T. ROWE PRICE SPECTRUM FUND, INC.

T. ROWE PRICE STATE TAX-FREE FUNDS, INC.

T. ROWE PRICE SUMMIT FUNDS, INC.

T. ROWE PRICE SUMMIT MUNICIPAL FUNDS, INC.

T. ROWE PRICE TAX-EFFICIENT FUNDS, INC.

T. ROWE PRICE TAX-EXEMPT MONEY FUND, INC.

T. ROWE PRICE TAX-FREE HIGH YIELD FUND, INC.

T. ROWE PRICE TAX-FREE INCOME FUND, INC.

T. ROWE PRICE TAX-FREE SHORT-INTERMEDIATE FUND, INC.

T. ROWE PRICE TOTAL RETURN FUND, INC.

T. ROWE PRICE U.S. BOND ENHANCED INDEX FUND, INC.

T. ROWE PRICE U.S. LARGE-CAP CORE FUND, INC.

T. ROWE PRICE U.S. TREASURY FUNDS, INC.

T. ROWE PRICE VALUE FUND, INC.

POWER OF ATTORNEY

RESOLVED, that the Corporation does hereby constitute and authorize Darrell N. Braman, Catherine D. Mathews, Margery K. Neale, and David Oestreicher, and each of them individually, their true and lawful attorneys and agents to take any and all action and execute any and all instruments which said attorneys and agents may deem necessary or advisable to enable the Corporation to comply with the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, and any rules, regulations, orders or other requirements of the United States Securities and Exchange Commission thereunder, in connection with the registration under the Securities Act of 1933, as amended, of shares of the Corporation, to be offered by the Corporation, and the registration of the Corporation under the Investment Company Act of 1940, as amended, including specifically, but without limitation of the foregoing, power and authority to sign the name of the Corporation on its behalf, and to sign the names of each of such directors and officers on his or her behalf as such director or officer to any (i) Registration Statement on Form N-1A or N-14 of the Corporation filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended; (ii) Registration Statement on Form N-1A or N-14 of the Corporation under the Investment Company Act of 1940, as amended; (iii) amendment or supplement (including, but not limited to, Post-Effective Amendments adding additional series or classes of the Corporation) to said Registration Statement; and (iv) instruments or documents filed or to be filed as a part of or in connection with such Registration Statement, including Articles Supplementary, Articles of Amendment, and other instruments with respect to the Articles of Incorporation of the Corporation.

IN WITNESS WHEREOF, the above named Corporations have caused these presents to be signed and the same attested by its Assistant Secretary, each thereunto duly authorized by its Board of Directors, and each of the undersigned has hereunto set his or her hand and seal as of the day set opposite his or her name.

Page 8

/s/David Oestreicher
David Oestreicher /s/Catherine D. Mathews	Executive Vice President (Principal Executive Officer) Director	April 29, 2019
Catherine D. Mathews /s/Teresa Bryce Bazemore	Treasurer (Principal Financial Officer) Vice President	April 29, 2019
Teresa Bryce Bazemore /s/Ronald J. Daniels	Director	April 29, 2019
Ronald J. Daniels /s/Bruce W. Duncan	Director	April 29, 2019
Bruce W. Duncan /s/Robert J. Gerrard, Jr.	Director	April 29, 2019
Robert J. Gerrard, Jr. /s/Paul F. McBride	Director	April 29, 2019
Paul F. McBride /s/Cecilia E. Rouse	Director	April 29, 2019
Cecilia E. Rouse /s/John G. Schreiber	Director	April 29, 2019
John G. Schreiber /s/Robert W. Sharps	Director	April 29, 2019
Robert W. Sharps	Director	April 29, 2019

(Signatures Continued)

Page 9

ATTEST:

/s/Shannon Hofher Rauser

Shannon Hofher Rauser, Assistant Secretary

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

T. Rowe Price Small-Cap Stock Fund, Inc.

Prospectus Date

rr_ProspectusDate

Mar. 01, 2020

T. Rowe Price Small-Cap Stock Fund, Inc.

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

T. ROWE PRICE Small-Cap Stock Fund Investor Class I Class Advisor Class Z Class SUMMARY

Objective [Heading]

rr_ObjectiveHeading

Investment Objective(s)

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The fund seeks to provide long-term capital growth by investing primarily in stocks of small companies.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the Investor Class or I Class, which are not reflected in the table.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Fees and Expenses of the Fund Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 24.1% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

24.10%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. The example also assumes that any current expense limitation arrangement remains in place for the period noted in the table above; therefore, the figures have been adjusted to reflect fee waivers or expense reimbursements only in the periods for which the expense limitation arrangement is expected to continue. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Investments, Risks, and Performance Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The fund will normally invest at least 80% of its net assets (including any borrowings for investment purposes) in stocks of small companies. The fund defines a small company as one whose market capitalization falls (i) within or below the current range of companies in either the Russell 2000^® Index or the S&P SmallCap 600 Index or (ii) below the three-year average maximum market cap of companies in either index as of December 31 of the three preceding years. The Russell 2000^® and S&P SmallCap 600 Indices are widely used benchmarks for tracking small-cap stock performance. As of December 31, 2019, the market capitalization ranges for the Russell 2000^® Index and the S&P SmallCap 600 Index were approximately $12.7 million to $8.3 billion, and $97.9 million to $6.7 billion, respectively. The market capitalizations of the companies in the fund’s portfolio and the S&P and Russell indexes change over time; the fund will not automatically sell or cease to purchase stock of a company it already owns just because the company’s market capitalization grows or falls outside this range. The fund may, on occasion, purchase companies with a market capitalization above the ranges. When choosing stocks, we generally look for one or more of the following characteristics:

• capable management;

• attractive business niches;

• pricing flexibility;

• sound financial and accounting practices;

• a potential or demonstrated ability to grow revenues, earnings, and cash flow consistently; and

• the potential for a catalyst (such as increased investor attention, asset sales, strong business prospects, or a change in management) to cause the stock’s price to rise.

Holdings will be widely diversified by industry and issuer, and stock selection may reflect either a growth or value investment approach. For example, we may look for a company whose price/earnings ratio is attractive relative to the underlying earnings growth rate. A value stock would be one where the stock price appears undervalued in relation to earnings, projected cash flow, or asset value per share.

In pursuing its investment objective(s), the fund has the discretion to deviate from its normal investment criteria. These situations might arise when the adviser believes a security could increase in value for a variety of reasons, including an extraordinary corporate event, a new product introduction or innovation, a favorable competitive development, or a change in management.

While most assets will typically be invested in U.S. common stocks, the fund may invest in foreign stocks in keeping with its objective(s).

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

As with any fund, there is no guarantee that the fund will achieve its objective(s). The fund’s share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund, which may be even greater during periods of market disruption or volatility, are summarized as follows.

Small-cap stocks Investments in securities issued by small-cap companies are likely to be more volatile than investments in securities issued by larger companies. Small-cap companies often have less experienced management, narrower product lines, more limited financial resources, and less publicly available information than larger companies. In addition, smaller companies are typically more sensitive to changes in overall economic conditions and their securities may be difficult to trade.

Sector exposure At times, the fund may have a significant portion of its assets invested in securities of issuers conducting business in a broadly related group of industries within the same economic sector. Issuers in the same economic sector may be similarly affected by economic or market events, making the fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly.

Stock investing Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. The value of stocks held by the fund may decline due to general weakness or volatility in the stock markets in which the fund invests or because of factors that affect a particular company or industry.

Foreign investing Investments in the securities of non-U.S. issuers may be adversely affected by local, political, social, and economic conditions overseas, greater volatility, reduced liquidity, or decreases in foreign currency values relative to the U.S. dollar. The risks of investing outside the U.S. are heightened for any investments in emerging markets, which are susceptible to greater volatility than investments in developed markets.

Active management The fund’s overall investment program and holdings selected by the fund’s investment adviser may underperform the broad markets, relevant indices, or other funds with similar objectives and investment strategies.

Risk Lose Money [Text]

rr_RiskLoseMoney

The fund’s share price fluctuates, which means you could lose money by investing in the fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following performance information provides some indication of the risks of investing in the fund. The fund’s performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund’s Investor Class. Returns for other share classes vary since they have different expenses.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following performance information provides some indication of the risks of investing in the fund. The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund’s Investor Class. Returns for other share classes vary since they have different expenses. The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund, if applicable.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

troweprice.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The fund’s performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

Bar Chart [Heading]

rr_BarChartHeading

SMALL-CAP STOCK FUND Calendar Year Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

	Quarter Ended	Total Return		Quarter Ended	Total Return
Best Quarter	3/31/19	17.56%	Worst Quarter	9/30/11	-21.21%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns Periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for the Investor Class and will differ for other share classes.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund, if applicable.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class and will differ for other share classes.

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

Updated performance information is available through troweprice.com.

T. Rowe Price Small-Cap Stock Fund, Inc. | Investor Class

Risk/Return:

rr_RiskReturnAbstract

Maximum account fee

rr_MaximumAccountFee

$ 20

^[1]

Management fees

rr_ManagementFeesOverAssets

0.74%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

Other expenses

rr_OtherExpensesOverAssets

0.14%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.89%

Fee waiver/expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

Total annual fund operating expenses after fee waiver/expense reimbursement

rr_NetExpensesOverAssets

0.89%

1 year

rr_ExpenseExampleYear01

$ 91

3 years

rr_ExpenseExampleYear03

284

5 years

rr_ExpenseExampleYear05

493

10 years

rr_ExpenseExampleYear10

$ 1,096

2010

rr_AnnualReturn2010

32.53%

2011

rr_AnnualReturn2011

(0.09%)

2012

rr_AnnualReturn2012

18.01%

2013

rr_AnnualReturn2013

37.65%

2014

rr_AnnualReturn2014

6.90%

2015

rr_AnnualReturn2015

(3.18%)

2016

rr_AnnualReturn2016

18.57%

2017

rr_AnnualReturn2017

15.27%

2018

rr_AnnualReturn2018

(3.24%)

2019

rr_AnnualReturn2019

33.63%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2019

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

17.56%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(21.21%)

1 Year

rr_AverageAnnualReturnYear01

33.63%

5 Years

rr_AverageAnnualReturnYear05

11.34%

10 Years

rr_AverageAnnualReturnYear10

14.68%

Since inception

rr_AverageAnnualReturnSinceInception

Inception date

rr_AverageAnnualReturnInceptionDate

Jun. 01, 1956

T. Rowe Price Small-Cap Stock Fund, Inc. | I Class

Risk/Return:

rr_RiskReturnAbstract

Maximum account fee

rr_MaximumAccountFee

Management fees

rr_ManagementFeesOverAssets

0.74%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

Other expenses

rr_OtherExpensesOverAssets

0.01%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.76%

Fee waiver/expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

Total annual fund operating expenses after fee waiver/expense reimbursement

rr_NetExpensesOverAssets

0.76%

1 year

rr_ExpenseExampleYear01

$ 78

3 years

rr_ExpenseExampleYear03

243

5 years

rr_ExpenseExampleYear05

422

10 years

rr_ExpenseExampleYear10

$ 942

1 Year

rr_AverageAnnualReturnYear01

33.80%

5 Years

rr_AverageAnnualReturnYear05

10 Years

rr_AverageAnnualReturnYear10

Since inception

rr_AverageAnnualReturnSinceInception

14.08%

Inception date

rr_AverageAnnualReturnInceptionDate

Aug. 28, 2015

T. Rowe Price Small-Cap Stock Fund, Inc. | Advisor Class

Risk/Return:

rr_RiskReturnAbstract

Maximum account fee

rr_MaximumAccountFee

Management fees

rr_ManagementFeesOverAssets

0.74%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.16%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.16%

Fee waiver/expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

Total annual fund operating expenses after fee waiver/expense reimbursement

rr_NetExpensesOverAssets

1.16%

1 year

rr_ExpenseExampleYear01

$ 118

3 years

rr_ExpenseExampleYear03

368

5 years

rr_ExpenseExampleYear05

638

10 years

rr_ExpenseExampleYear10

$ 1,409

1 Year

rr_AverageAnnualReturnYear01

33.27%

5 Years

rr_AverageAnnualReturnYear05

11.04%

10 Years

rr_AverageAnnualReturnYear10

14.38%

Since inception

rr_AverageAnnualReturnSinceInception

Inception date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2000

T. Rowe Price Small-Cap Stock Fund, Inc. | Z Class

Risk/Return:

rr_RiskReturnAbstract

Maximum account fee

rr_MaximumAccountFee

Management fees

rr_ManagementFeesOverAssets

0.74%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

Other expenses

rr_OtherExpensesOverAssets

0.01%

Acquired fund fees and expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.76%

^[2]

Fee waiver/expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.75%)

^[2]

Total annual fund operating expenses after fee waiver/expense reimbursement

rr_NetExpensesOverAssets

0.01%

^[2]

1 year

rr_ExpenseExampleYear01

$ 1

3 years

rr_ExpenseExampleYear03

3

5 years

rr_ExpenseExampleYear05

6

10 years

rr_ExpenseExampleYear10

$ 13

1 Year

rr_AverageAnnualReturnYear01

5 Years

rr_AverageAnnualReturnYear05

10 Years

rr_AverageAnnualReturnYear10

Since inception

rr_AverageAnnualReturnSinceInception

Inception date

rr_AverageAnnualReturnInceptionDate

Mar. 16, 2020

T. Rowe Price Small-Cap Stock Fund, Inc. | Returns after taxes on distributions | Investor Class

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

31.96%

5 Years

rr_AverageAnnualReturnYear05

9.40%

10 Years

rr_AverageAnnualReturnYear10

13.00%

Since inception

rr_AverageAnnualReturnSinceInception

Inception date

rr_AverageAnnualReturnInceptionDate

Jun. 01, 1956

T. Rowe Price Small-Cap Stock Fund, Inc. | Returns after taxes on distributions and sale of fund shares | Investor Class

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

21.02%

5 Years

rr_AverageAnnualReturnYear05

8.58%

10 Years

rr_AverageAnnualReturnYear10

11.95%

Since inception

rr_AverageAnnualReturnSinceInception

Inception date

rr_AverageAnnualReturnInceptionDate

Jun. 01, 1956

T. Rowe Price Small-Cap Stock Fund, Inc. | Russell 2000® Index (reflects no deduction for fees, expenses, or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

25.52%

5 Years

rr_AverageAnnualReturnYear05

8.23%

10 Years

rr_AverageAnnualReturnYear10

11.83%

Since inception

rr_AverageAnnualReturnSinceInception

10.22%

^[3]

Inception date

rr_AverageAnnualReturnInceptionDate

Aug. 28, 2015

T. Rowe Price Small-Cap Stock Fund, Inc. | S&P SmallCap 600 Index (reflects no deduction for fees, expenses, or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

22.78%

5 Years

rr_AverageAnnualReturnYear05

9.56%

10 Years

rr_AverageAnnualReturnYear10

13.35%

Since inception

rr_AverageAnnualReturnSinceInception

11.62%

^[3]

Inception date

rr_AverageAnnualReturnInceptionDate

Aug. 28, 2015

T. Rowe Price Small-Cap Stock Fund, Inc. | Lipper Small-Cap Growth Funds Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

30.65%

5 Years

rr_AverageAnnualReturnYear05

10.87%

10 Years

rr_AverageAnnualReturnYear10

12.92%

Since inception

rr_AverageAnnualReturnSinceInception

12.27%

^[3]

Inception date

rr_AverageAnnualReturnInceptionDate

Aug. 28, 2015

T. Rowe Price Small-Cap Stock Fund, Inc. | Lipper Small-Cap Core Funds Index

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

24.80%

5 Years

rr_AverageAnnualReturnYear05

8.19%

10 Years

rr_AverageAnnualReturnYear10

11.40%

Since inception

rr_AverageAnnualReturnSinceInception

10.18%

^[3]

Inception date

rr_AverageAnnualReturnInceptionDate

Aug. 28, 2015

[1] Subject to certain exceptions, accounts with a balance of less than $10,000 are charged an annual $20 fee.

[2] T. Rowe Price Associates, Inc., has contractually agreed to waive and/or bear all of the Z Class’ expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary expenses; and acquired fund fees and expenses) in their entirety. T. Rowe Price Associates, Inc. expects this fee waiver and/or expense reimbursement arrangement to remain in place indefinitely, and the agreement may only be amended or terminated with approval by the fund’s Board of Directors.

[3] Return since 8/28/15.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	T. Rowe Price Small-Cap Stock Fund, Inc.
Prospectus Date	rr_ProspectusDate	Mar. 01, 2020
Document Creation Date	dei_DocumentCreationDate	Feb. 26, 2020

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Dec. 31, 2019
Registrant Name	dei_EntityRegistrantName	T. Rowe Price Small-Cap Stock Fund, Inc.
Central Index Key	dei_EntityCentralIndexKey	0000075170
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Feb. 26, 2020
Document Effective Date	dei_DocumentEffectiveDate	Mar. 01, 2020
Prospectus Date	rr_ProspectusDate	Mar. 01, 2020
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A

XML

Total

T. Rowe Price Small-Cap Stock Fund, Inc.

T. ROWE PRICE Small-Cap Stock Fund Investor Class I Class Advisor Class Z Class SUMMARY

Investment Objective(s)

The fund seeks to provide long-term capital growth by investing primarily in stocks of small companies.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the Investor Class or I Class, which are not reflected in the table.

Fees and Expenses of the Fund Shareholder fees (fees paid directly from your investment)

Shareholder Fees - T. Rowe Price Small-Cap Stock Fund, Inc. - USD ($)	Investor Class		I Class	Advisor Class	Z Class
Maximum account fee	$ 20	[1]

Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - T. Rowe Price Small-Cap Stock Fund, Inc.	Investor Class	I Class	Advisor Class	Z Class
Management fees	0.74%	0.74%	0.74%	0.74%
Distribution and service (12b-1) fees			0.25%
Other expenses	0.14%	0.01%	0.16%	0.01%
Acquired fund fees and expenses	0.01%	0.01%	0.01%	0.01%
Total annual fund operating expenses	0.89%	0.76%	1.16%	0.76%	[1]
Fee waiver/expense reimbursement				(0.75%)	[1]
Total annual fund operating expenses after fee waiver/expense reimbursement	0.89%	0.76%	1.16%	0.01%	[1]

Example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. The example also assumes that any current expense limitation arrangement remains in place for the period noted in the table above; therefore, the figures have been adjusted to reflect fee waivers or expense reimbursements only in the periods for which the expense limitation arrangement is expected to continue. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - T. Rowe Price Small-Cap Stock Fund, Inc. - USD ($)	1 year	3 years	5 years	10 years
Investor Class	91	284	493	1,096
I Class	78	243	422	942
Advisor Class	118	368	638	1,409
Z Class	1	3	6	13

Portfolio Turnover

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 24.1% of the average value of its portfolio.

Investments, Risks, and Performance Principal Investment Strategies

The fund will normally invest at least 80% of its net assets (including any borrowings for investment purposes) in stocks of small companies. The fund defines a small company as one whose market capitalization falls (i) within or below the current range of companies in either the Russell 2000^® Index or the S&P SmallCap 600 Index or (ii) below the three-year average maximum market cap of companies in either index as of December 31 of the three preceding years. The Russell 2000^® and S&P SmallCap 600 Indices are widely used benchmarks for tracking small-cap stock performance. As of December 31, 2019, the market capitalization ranges for the Russell 2000^® Index and the S&P SmallCap 600 Index were approximately $12.7 million to $8.3 billion, and $97.9 million to $6.7 billion, respectively. The market capitalizations of the companies in the fund’s portfolio and the S&P and Russell indexes change over time; the fund will not automatically sell or cease to purchase stock of a company it already owns just because the company’s market capitalization grows or falls outside this range. The fund may, on occasion, purchase companies with a market capitalization above the ranges. When choosing stocks, we generally look for one or more of the following characteristics:

• capable management;

• attractive business niches;

• pricing flexibility;

• sound financial and accounting practices;

• a potential or demonstrated ability to grow revenues, earnings, and cash flow consistently; and

• the potential for a catalyst (such as increased investor attention, asset sales, strong business prospects, or a change in management) to cause the stock’s price to rise.

Holdings will be widely diversified by industry and issuer, and stock selection may reflect either a growth or value investment approach. For example, we may look for a company whose price/earnings ratio is attractive relative to the underlying earnings growth rate. A value stock would be one where the stock price appears undervalued in relation to earnings, projected cash flow, or asset value per share.

In pursuing its investment objective(s), the fund has the discretion to deviate from its normal investment criteria. These situations might arise when the adviser believes a security could increase in value for a variety of reasons, including an extraordinary corporate event, a new product introduction or innovation, a favorable competitive development, or a change in management.

While most assets will typically be invested in U.S. common stocks, the fund may invest in foreign stocks in keeping with its objective(s).

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Principal Risks

As with any fund, there is no guarantee that the fund will achieve its objective(s). The fund’s share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund, which may be even greater during periods of market disruption or volatility, are summarized as follows.

Small-cap stocks Investments in securities issued by small-cap companies are likely to be more volatile than investments in securities issued by larger companies. Small-cap companies often have less experienced management, narrower product lines, more limited financial resources, and less publicly available information than larger companies. In addition, smaller companies are typically more sensitive to changes in overall economic conditions and their securities may be difficult to trade.

Sector exposure At times, the fund may have a significant portion of its assets invested in securities of issuers conducting business in a broadly related group of industries within the same economic sector. Issuers in the same economic sector may be similarly affected by economic or market events, making the fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly.

Stock investing Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. The value of stocks held by the fund may decline due to general weakness or volatility in the stock markets in which the fund invests or because of factors that affect a particular company or industry.

Foreign investing Investments in the securities of non-U.S. issuers may be adversely affected by local, political, social, and economic conditions overseas, greater volatility, reduced liquidity, or decreases in foreign currency values relative to the U.S. dollar. The risks of investing outside the U.S. are heightened for any investments in emerging markets, which are susceptible to greater volatility than investments in developed markets.

Active management The fund’s overall investment program and holdings selected by the fund’s investment adviser may underperform the broad markets, relevant indices, or other funds with similar objectives and investment strategies.

Performance

The following performance information provides some indication of the risks of investing in the fund. The fund’s performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund’s Investor Class. Returns for other share classes vary since they have different expenses.

SMALL-CAP STOCK FUND Calendar Year Returns

	Quarter Ended	Total Return		Quarter Ended	Total Return
Best Quarter	3/31/19	17.56%	Worst Quarter	9/30/11	-21.21%

The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund, if applicable.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class and will differ for other share classes.

Average Annual Total Returns Periods ended December 31, 2019

Average Annual Total Returns - T. Rowe Price Small-Cap Stock Fund, Inc.	1 Year	5 Years	10 Years	Since inception		Inception date
Investor Class	33.63%	11.34%	14.68%			Jun. 01, 1956
Investor Class | Returns after taxes on distributions	31.96%	9.40%	13.00%			Jun. 01, 1956
Investor Class | Returns after taxes on distributions and sale of fund shares	21.02%	8.58%	11.95%			Jun. 01, 1956
I Class	33.80%			14.08%		Aug. 28, 2015
Advisor Class	33.27%	11.04%	14.38%			Mar. 31, 2000
Z Class						Mar. 16, 2020
Russell 2000® Index (reflects no deduction for fees, expenses, or taxes)	25.52%	8.23%	11.83%	10.22%	[1]	Aug. 28, 2015
S&P SmallCap 600 Index (reflects no deduction for fees, expenses, or taxes)	22.78%	9.56%	13.35%	11.62%	[1]	Aug. 28, 2015
Lipper Small-Cap Growth Funds Index	30.65%	10.87%	12.92%	12.27%	[1]	Aug. 28, 2015
Lipper Small-Cap Core Funds Index	24.80%	8.19%	11.40%	10.18%	[1]	Aug. 28, 2015

Updated performance information is available through troweprice.com.

[1] Subject to certain exceptions, accounts with a balance of less than $10,000 are charged an annual $20 fee.

[1] T. Rowe Price Associates, Inc., has contractually agreed to waive and/or bear all of the Z Class’ expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary expenses; and acquired fund fees and expenses) in their entirety. T. Rowe Price Associates, Inc. expects this fee waiver and/or expense reimbursement arrangement to remain in place indefinitely, and the agreement may only be amended or terminated with approval by the fund’s Board of Directors.

[1] Return since 8/28/15.