Retail Class Prospectus | RS Investors Fund

RS Investors Fund

Investment Objective

Long-term capital appreciation.

Fees and Expenses of the Fund

The tables below describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts for the purchase of Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in RS Funds. More information about these and other discounts is available from your financial professional and in the “Types of Shares Available — Class A Shares” section on page 110 of the Fund’s prospectus and the “Waivers of Certain Sales Loads” section on page 37 of the Fund’s statement of additional information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Retail Class Prospectus RS Investors Fund	Class A		Class C		Class K
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	4.75%		none		none
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of sale proceeds or the original offering price)	none	[1]	1.00%	[2]	none

Annual Fund Operating Expenses (expenses are deducted from Fund assets as a percentage of average daily net assets)

Annual Fund Operating Expenses Retail Class Prospectus RS Investors Fund		Class A	Class C	Class K
Management Fees		1.00%	1.00%	1.00%
Distribution (12b-1) Fees		0.25%	1.00%	0.65%
Other Expenses		1.03%	1.31%	1.57%
Total Annual Fund Operating Expenses	[1]	2.28%	3.31%	3.22%
Fee Waiver/Expense Reimbursement	[1]	(0.98%)	(1.26%)	(1.52%)
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	[1]	1.30%	2.05%	1.70%

Example

This Example is intended to help you compare the cost of investing in the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. This Example also assumes that your investment earns a 5% return each year and that the Fund’s operating expenses remain the same as shown above. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Assuming Redemption at End of  Period

Expense Example Retail Class Prospectus RS Investors Fund (USD $)	Class A	Class C	Class K
1 Year	601	308	173
3 Years	1,064	901	850
5 Years	1,552	1,618	1,551
10 Years	2,894	3,518	3,417

Assuming No Redemption

Expense Example, No Redemption Retail Class Prospectus RS Investors Fund (USD $)	Class A	Class C	Class K
1 Year	601	208	173
3 Years	1,064	901	850
5 Years	1,552	1,618	1,551
10 Years	2,894	3,518	3,417

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 for you if your Fund 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 97% of the average value of its portfolio.

Investments, Risks, and Performance
Principal Investment Strategies

The Fund invests in securities that the Fund’s investment team believes are undervalued. The Fund will typically invest most of its assets in equity securities of small-, mid-, or large-capitalization companies. The Fund typically invests most of its assets in securities of U.S. companies but may also invest any portion of its assets in foreign securities. The Fund will likely hold a more limited number of securities than many other mutual funds. The Fund’s investment team currently expects that the Fund typically will hold between 25 and 30 securities positions.

In evaluating investments for the Fund, the Fund’s investment team conducts fundamental research to identify companies with improving returns on invested capital. The investment team’s research efforts seek to identify the primary economic and value drivers for each company. Research focuses on a company’s capital deployment strategy, including decisions about capital expenditures, acquisitions, cost-saving initiatives, and share repurchase/dividend plans, as the Fund’s investment team seeks to understand how returns on invested capital may improve over time. Valuation is considered an important part of the process. The investment team seeks to invest in companies based on the investment team’s assessment of risk (the possibility of permanent capital impairment) and its assessment of reward (the future value of the enterprise).

The Fund may at times, but will not necessarily, hold a substantial portion of its assets in cash and cash equivalents, and invest a substantial portion of its assets in securities of companies that the investment team considers to be principally engaged in natural resources industries. Companies in natural resources industries include companies that the Fund’s investment team considers to be principally engaged in the discovery, development, production, or distribution of natural resources; the development of technologies for the production or efficient use of natural resources; or the furnishing of related supplies or services.

Principal Risks

You may lose money by investing in the Fund. The Fund may not achieve its investment objective. The principal risks of investing in the Fund, which could adversely affect its net asset value and total return, are as follows.

Equity Securities Risk
The value of a company’s stock may decline in response to factors affecting that particular company or stock markets generally.

Investment Style Risk
A mutual fund investing principally in value style stocks may at times underperform other mutual funds that invest more broadly or that have different investment styles.

Small and Mid-sized Companies Risk
Small and mid-sized companies may be subject to a number of risks not associated with larger, more established companies, potentially making their stock prices more volatile and increasing the risk of loss.

Overweighting Risk
Overweighting investments in an industry or group of industries relative to the Fund’s benchmark increases the risk that the Fund will underperform its benchmark because a general decline in the prices of stocks in that industry or group of industries will affect the Fund to a greater extent than its benchmark.

Underweighting Risk
If the Fund underweights its investment in an industry or group of industries relative to the Fund’s benchmark, the Fund will participate in any general increase in the value of companies in that industry or group of industries to a lesser extent than the Fund’s benchmark.

Non-diversification Risk
The Fund is a non-diversified mutual fund. A non-diversified fund is able to invest its assets in a more limited number of issuers than a diversified fund, so a decline in the market value of a particular security may affect the Fund’s value more than if the Fund were a diversified fund.

Foreign Securities Risk
Foreign securities are subject to political, regulatory, and economic risks not present in domestic investments. In addition, when the Fund buys securities denominated in a foreign currency, there are special risks such as changes in currency exchange rates and the risk that a foreign government could regulate foreign exchange transactions. In addition, to the extent that investments are made in a limited number of countries, events in those countries will have a more significant impact on the Fund.

Portfolio Turnover Risk
Frequent purchases and sales of portfolio securities may result in higher Fund expenses and may result in more significant distributions of short-term capital gains to investors, which are taxed as ordinary income.

Cash Position Risk
To the extent that the Fund holds assets in cash and cash equivalents and not in the investments previously described, the ability of the Fund to meet its objective may be limited.

Liquidity Risk
Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. In addition, the Fund, by itself or together with other accounts managed by RS Investments, may hold a position in a security that is large relative to the typical trading volume for that security, which can make it difficult for the Fund to dispose of the position at an advantageous time or price.

Natural Resources Investment Risk
Investment in companies in natural resources industries can be significantly affected by (often rapid) changes in supply of, or demand for, various natural resources. They may also be affected by changes in energy prices, international political and economic developments, environmental incidents, energy conservation, the success of exploration projects, changes in commodity prices, and tax and other government regulations. Investments in interests in oil, gas or mineral exploration or development programs, including pipelines, may be held through master limited partnerships (“MLPs”), which are generally subject to many of the risks that apply to partnerships and may also be subject to certain tax risks.

Fund Performance

The bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for 1 and 5 years and since inception compare with those of a broad measure of market performance. The returns in the bar chart do not reflect the impact of sales loads. If they did, the returns would be lower than those shown. The Fund’s past performance (before and after taxes) is not an indication of future performance. Updated performance information for the Fund is available at www.rsinvestments.com or by calling 800-766-3863.

Annual Total Return for Class A Shares (calendar year-end)

Best Quarter  Second Quarter 2009  26.20%            Worst Quarter  Fourth Quarter 2008  -35.17%

Annual Return for Class A Shares (periods ended 12/31/12)

Average Annual Total Returns Retail Class Prospectus RS Investors Fund	Inception Date of Share Class	1 Year	5 Years	Since Inception
Class A Shares	Nov. 15, 2005	15.73%	0.94%	3.49%
Class A Shares Return After Taxes on Distributions	Nov. 15, 2005	15.17%	0.42%	2.22%
Class A Shares Return After Taxes on Distributions and Sale of Fund Shares	Nov. 15, 2005	10.22%	0.54%	2.37%
Class A Shares Russell 3000® Value Index (reflects no deduction for fees, expenses or taxes)	Nov. 15, 2005	17.55%	0.83%	3.66%
Class C Shares	Jul. 24, 2007	19.59%	0.98%	(0.56%)
Class C Shares Russell 3000® Value Index (reflects no deduction for fees, expenses or taxes)	Jul. 24, 2007	17.55%	0.83%	(0.30%)
Class K Shares	Jan. 03, 2007	21.04%	1.21%	0.82%
Class K Shares Russell 3000® Value Index (reflects no deduction for fees, expenses or taxes)	Jan. 03, 2007	17.55%	0.83%	0.56%

After-tax returns are shown for Class A shares only; after-tax returns for other classes will vary. 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 401(k) plans or individual retirement accounts.

[1] Contingent deferred sales load of 1.00% applies to purchases of $1 million or more of Class A shares if these shares are sold within 18 months of purchase.

[2] Contingent deferred sales load applies for shares sold within one year of purchase.

[1] RS Investments has contractually agreed to limit the Total Annual Fund Operating Expenses (excluding expenses indirectly incurred by the Fund through investments in pooled investment vehicles, interest, taxes, investment-related expenses (e.g., brokerage commissions), and extraordinary expenses) to 1.30% for Class A shares, 2.05% for Class C shares, and 1.70% for Class K shares. This expense limitation will continue through April 30, 2014 and cannot be terminated by RS Investments prior to that date without the action or consent of the Fund's Board of Trustees.