Summary Prospectus |  March 9, 2023​

Schwab® Health Care Fund​

Ticker Symbol: SWHFX

Before you invest, you may want to review the fund’s prospectus, which contains more information about the fund and its risks. You can find the fund’s prospectus, Statement of Additional Information (SAI), reports to shareholders and other information about the fund online at www.schwabassetmanagement.com/schwabfunds_prospectus. You can also obtain this information at no cost by calling
1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. If you purchase or hold fund shares through a financial intermediary, the fund’s prospectus, SAI, reports to shareholders and other information about the fund are available from your financial intermediary.

The fund’s prospectus and SAI, both dated February 27, 2023, as supplemented, include a more detailed discussion of fund investment policies and the risks associated with various fund investments. The prospectus and SAI are incorporated by reference into the summary prospectus, making them legally a part of the summary prospectus.

Investment Objective

The fund seeks long-term capital growth.

Fund Fees and Expenses

This table describes the fees and expenses you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.

Shareholder Fees (fees paid directly from your investment)
​	None

Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Management fees	0.53
Distribution (12b-1) fees	None
Other expenses	0.27
Total annual fund operating expenses	0.80

Example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other 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 time periods. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. The figures are based on total annual fund operating expenses after any expense reduction. Your actual costs may be higher or lower.

Expenses on a $10,000 Investment
1 Year			3 Years			5 Years			10 Years
​	$	82	​	$	255	​	$	444	​	$	990

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 may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in the 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 59% of the average value of its portfolio.

Principal Investment Strategies

To pursue its goal, the fund primarily invests in equity securities issued by companies in the health care sector. The health care sector may include, for example, pharmaceutical and biotechnology companies, health care facilities operations, medical product manufacturers and suppliers, medical providers and medical services firms. It is the fund’s policy that under normal circumstances it will invest at least 80% of its net assets (including, for this purpose, any borrowings for investment purposes) in these securities; typically, the actual percentage will be higher. The fund will notify its shareholders at least 60 days before changing this policy. The fund will concentrate its investments in securities of companies in the health care sector.

The fund primarily invests in U.S. companies, but may invest up to 25% of its net assets in the stocks of publicly traded companies located in countries other than the United States. The fund’s international investments will primarily be in stocks issued by companies located in developed market countries; however, it may also invest in stocks issued by companies located in emerging markets. The fund generally does not intend to hedge its exposure to foreign currencies. The fund may invest in companies of all sizes.

The fund actively selects portfolio securities. To aid its U.S. stock selection, the fund uses Schwab Equity Ratings®, a model that assigns ratings to approximately 3,000 of the largest (by market cap) U.S.-traded stocks. To aid its international stock selection, the fund uses Schwab Equity Ratings International®, a model that ranks stocks of foreign companies headquartered and trading in certain

Schwab Health Care Fund | Summary Prospectus1​

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foreign countries. In addition to using Schwab Equity Ratings and Schwab Equity Ratings International, the portfolio managers utilize investment data and other analytics to help manage the fund’s portfolio.

Generally, when constructing the portfolio, the portfolio managers invest in stocks that are highly rated by Schwab Equity Ratings or by Schwab Equity Ratings International. As part of the portfolio construction process, the portfolio managers may also purchase lower-rated stocks or stocks that are not rated by Schwab Equity Ratings or by Schwab Equity Ratings International. This investment approach under normal conditions will result in a portfolio that maintains an overall weighting toward highly-rated stocks. For more information on Schwab Equity Ratings and Schwab Equity Ratings International, please see the “More About Schwab’s Research” section in the prospectus.

The fund uses a portfolio optimization process to assist in constructing the portfolio. The portfolio managers use the portfolio optimization process to seek to build a portfolio they believe will provide the optimal balance between risk and expected return, subject to parameters such as the number of stocks desired in the portfolio, the level of portfolio turnover, industry diversification, and volatility considerations.

The fund may invest in derivatives, principally futures contracts, primarily to seek returns on the fund’s otherwise uninvested cash assets. A futures contract is a contract to buy or sell a specific financial instrument at a specified price at a specific future time. By using these instruments, the fund potentially can offset the impact on its performance of keeping some assets in cash. The fund may invest in exchange-traded funds (ETFs) and stocks of real estate investment trusts (REITs). The fund may also invest in depository receipts evidencing ownership of shares of foreign issuers, including American Depositary Receipts (ADRs), Global Depositary Receipts (GDRs), and European Depositary Receipts (EDRs). The fund also may lend portfolio securities to earn additional income. Any income realized through securities lending may help fund performance.

For temporary defensive purposes during unusual economic or market conditions or for liquidity purposes, the fund may invest up to 100% of its assets in cash, money market instruments, repurchase agreements and other short-term obligations. The fund also may invest in these types of securities or hold cash while looking for suitable investment opportunities. When the fund engages in such activities, it may not achieve its investment objective.

Principal Risks

The fund is subject to risks, any of which could cause an investor to lose money. The fund’s principal risks include:

Market Risk. Financial markets rise and fall in response to a variety of factors, sometimes rapidly and unpredictably. Markets may be impacted by economic, political, regulatory and other conditions, including economic sanctions and other government actions. In addition, the occurrence of global events, such as war, terrorism, environmental disasters, natural disasters and epidemics, may also negatively affect the financial markets. As with any investment

whose performance is tied to these markets, the value of an investment in the fund will fluctuate, which means that an investor could lose money over short or long periods.

Management Risk. The fund’s investment adviser makes investment decisions for the fund using a strategy based largely on historical information. There is no guarantee that a strategy based on historical information will produce the desired results in the future. In addition, the portfolio optimization process used by the fund to assist in constructing the fund’s portfolio does not assure successful investment. Securities selected with the assistance of the investment process may be negatively impacted by factors or events not foreseen in developing the process. The portfolio optimization process, Schwab Equity Ratings and Schwab Equity Ratings International may not adequately take into account certain factors or may rely on inaccurate data inputs, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data inputs. As a result, the fund may have a lower return than if it were managed using another process or strategy.

Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual companies, industries or the securities market as a whole. In addition, equity markets tend to move in cycles, which may cause stock prices to fall over short or extended periods of time.

Concentration Risk. Because the fund’s investments are concentrated in issuers doing business in the same sector, the companies in which the fund invests will be affected by many of the same factors, such as legislative or regulatory changes, intense competition for market share and other competitive challenges. In addition, stocks of health care companies may underperform other segments of the equity market or stock market as a whole and are likely to have above-average volatility.

Foreign Investment Risk. The fund’s investments in securities of foreign issuers involve certain risks that may be greater than those associated with investments in securities of U.S. issuers. These include risks of adverse changes in foreign economic, political, regulatory and other conditions; changes in currency exchange rates or exchange control regulations (including limitations on currency movements and exchanges); the imposition of economic sanctions or other government restrictions; differing accounting, auditing, financial reporting and legal standards and practices; differing securities market structures; and higher transaction costs. These risks may negatively impact the value or liquidity of the fund’s investments, and could impair the fund’s ability to meet its investment objective or invest in accordance with its investment strategy. There is a risk that investments in securities denominated in, and/or receiving revenues in, foreign currencies will decline in value relative to the U.S. dollar. Foreign securities also include ADRs, GDRs and EDRs, which may be less liquid than the underlying shares in their primary trading market, and GDRs, in particular, many of which are issued by companies in emerging markets, may be more volatile. To the extent the fund’s investments in a single country or a limited number of countries represent a large percentage of the fund’s assets, the fund’s performance may be adversely

2Schwab Health Care Fund | Summary Prospectus

affected by the economic, political, regulatory and social conditions in those countries, and the fund’s price may be more volatile than the price of a fund that is geographically diversified.

Emerging Markets Risk. Emerging market countries may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries. Emerging market countries often have less uniformity in accounting, auditing, financial reporting and recordkeeping requirements and greater risk associated with the custody of securities. In addition, the financial stability of issuers (including governments) in emerging market countries may be more precarious than in developed countries. As a result, there may be an increased risk of illiquidity and price volatility associated with the fund’s investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar, and, at times, it may be difficult to value such investments.

Market Capitalization Risk. Securities issued by companies of different market capitalizations tend to go in and out of favor based on market and economic conditions. During a period when securities of a particular market capitalization fall behind other types of investments, the fund’s performance could be impacted.

Derivatives Risk. The fund’s use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. The fund’s use of derivatives could reduce the fund’s performance, increase its volatility and cause the fund to lose more than the initial amount invested. In addition, investments in derivatives may involve leverage, which means a small percentage of assets invested in derivatives can have a disproportionately large impact on the fund.

ETF Risk. When the fund invests in an ETF, it will bear a proportionate share of the ETF’s expenses. In addition, lack of liquidity in the market for an ETF’s shares can result in its value being more volatile than the underlying portfolio of securities.

Securities Lending Risk. Securities lending involves the risk of loss of rights in, or delay in recovery of, the loaned securities if the borrower fails to return the security loaned or becomes insolvent.

REITs Risk. The fund’s investments in REITs will be subject to the risks associated with the direct ownership of real estate, including fluctuations in the value of underlying properties, defaults by borrowers or tenants, changes in interest rates and risks related to general or local economic conditions. REITs are also subject to certain additional risks, for example, REITs are dependent upon specialized management skills and cash flows, and may have their investments in relatively few properties, a small geographic area or a single property type. Failure of a company to qualify as a REIT under federal tax law may have adverse consequences on the fund. In addition, REITs have their own expenses, and the fund will bear a proportionate share of those expenses.

Liquidity Risk. The fund may be unable to sell certain securities, such as illiquid securities, readily at a favorable time or price, or the fund may have to sell them at a loss.

Portfolio Turnover Risk. The fund buys and sells portfolio securities actively. This may cause the fund’s portfolio turnover rate and transaction costs to rise, which may lower the fund’s performance and may increase the likelihood of capital gains distributions.

For more information on the risks of investing in the fund, please see the “Fund Details” section in the prospectus.

Performance

The bar chart below shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compared to that of two indices. This information provides some indication of the risks of investing in the fund. All figures assume distributions were reinvested. Keep in mind that future performance (both before and after taxes) may differ from past performance. For current performance information, please see
www.schwabassetmanagement.com/schwabfunds_prospectus.

Annual Total Returns (%) as of 12/31

Best Quarter: 16.01% Q1 2013

Worst Quarter: (12.09%) Q1 2020

Average Annual Total Returns as of 12/31/22
​	1 Year		5 Years		10 Years
Before taxes	​	(4.67%)	​	10.16%	​	13.15%
After taxes on distributions	​	(5.55%)	​	8.05%	​	10.64%
After taxes on distributions and sale of shares	​	(2.10%)	​	7.78%	​	10.18%
Comparative Indices (reflect no deduction for expenses or taxes)	​		​		​
Dow Jones Global Health Care Index	​	(8.00%)	​	9.31%	​	11.91%
S&P 500 Index	​	(18.11%)	​	9.42%	​	12.56%

The after-tax figures reflect the highest individual federal income tax rates in effect during the period and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan, an individual retirement account (IRA) or other tax-advantaged account.

Investment Adviser

Charles Schwab Investment Management, Inc., dba Schwab Asset Management™

Schwab Health Care Fund | Summary Prospectus3​

Portfolio Managers

Iain Clayton, CFA, FRM, Senior Portfolio Manager, is responsible for the day-to-day co-management of the fund. He has managed the fund since 2015.

Wei Li, Ph.D., CFA, Senior Portfolio Manager, is responsible for the day-to-day co-management of the fund. She has managed the fund since 2013.

Purchase and Sale of Fund Shares

The fund is open for business each day that the New York Stock Exchange (NYSE) is open. If the NYSE is closed due to weather or other extenuating circumstances on a day it would typically be open for business, or the NYSE has an unscheduled early closing on a day it has opened for business, the fund reserves the right to treat such day as a business day and accept purchase and redemption orders and calculate its share price as of the normally scheduled close of regular trading on the NYSE for that day.

Investors may only invest in the fund through an account at Charles Schwab & Co., Inc. (Schwab) or another financial intermediary. When you place orders to purchase, exchange or redeem fund shares through an account at Schwab or another financial intermediary, you must follow Schwab’s or the other financial intermediary’s transaction procedures.

There is no minimum initial investment for the fund.

Tax Information

Dividends and capital gains distributions received from the fund will generally be taxable as ordinary income or capital gains, unless you are investing through an IRA, 401(k) or other tax-advantaged account (in which case you may be taxed later, upon withdrawal of your investment from such account).

Payments to Financial Intermediaries

If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a bank), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other financial intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

4Schwab Health Care Fund | Summary Prospectus