Parnassus Investments

Principles and Performance®

We seek to build wealth responsibly by investing in high-quality companies with both strong financial prospects and sustainable business practices.

Principles and Performance®

We seek to build wealth responsibly by investing in high-quality companies with both strong financial prospects and sustainable business practices.

Power your portfolio with Parnassus Select ETFs.
Power your portfolio with Parnassus Select ETFs.
Discover MoreFollow us

Explore Our Funds

Our funds are deeply researched, high conviction portfolios. We construct concentrated portfolios that aim to outperform the benchmark over the long term and reduce the impact from down markets.

Fund AUM$81M
Fund StrategyLarge Cap Core
Fund AUM$11M
Fund StrategyLarge Cap Value
Fund AUM$27,531M
Fund StrategyLarge Cap Core
Fund AUM$87M
Fund StrategyLarge Cap Growth
Fund AUM$4,892M
Fund StrategyLarge Cap Value
Fund AUM$2,571M
Fund StrategyMid Cap Core
Fund AUM$844M
Fund StrategyMid Cap Growth
Fund AUM$14M
Fund StrategyInternational Large Cap Core
Fund AUM$27,531M
Fund StrategyLarge Cap Core

Our Investment Approach

The Parnassus investment approach is highly selective. We pursue high-quality companies that are likely to thrive in a healthy economy—and be resilient in a downturn—based on the four pillars below.

Increasing Relevancy

Companies with products or services that are gaining share in the overall economy.

Durable Competitive Advantages

Companies that can defend the business against new or existing competition.

Strong Management

Company leaders with a long-term focus, high integrity and alignment with shareholder interests.

Sustainable Business Practices

Companies actively planning for future opportunities and potential risks from multiple lenses.

Insights

The Case for Life Sciences Tools & Services Amid Cyclical Uncertainty

After a few years of weakness, we see the Life Science Tools & Services sector, foundational to biopharma R&D, rebounding as cyclical headwinds abate and innovation drives long-term growth.

READ MORE

Examining the Impact of Artificial Intelligence on Business Sectors

AI is reshaping business landscapes across sectors. Our investment team offers insights into how leading companies are integrating AI to achieve new competitive advantages and increase productivity.

READ MORE

AI in Focus: Unlocking Innovation, Growth, and Investment Insights

Andrew Choi, Portfolio Manager and Senior Analyst at Parnassus Investments, explores the transformative role of artificial intelligence in investment strategies.

WATCH NOW

© 2010-2025 Parnassus Investments, LLC.

PARNASSUS, PARNASSUS INVESTMENTS, and PARNASSUS FUNDS are federally registered trademarks of Parnassus Investments, LLC.

Important Information

ENVIRONMENTAL, SOCIAL AND GOVERNANCE (ESG) GUIDELINES The Parnassus strategies evaluate ESG factors as part of the investment decision-making process, considering a range of impacts they may have on future revenues, expenses, assets, liabilities and overall risk. The strategies also utilize active ownership to encourage more sustainable business policies and practices and greater ESG transparency. Active ownership strategies include proxy voting, dialogue with company management, sponsorship of shareholder resolutions, and public policy advocacy. There is no guarantee that the ESG strategies will be successful.

Mutual fund investing involves risk, and loss of principal is possible.

Earnings Growth is not a measure of future performance.

Shares of the Funds are offered only for sale in the United States. The Funds are not registered for sale in any other country. Nothing on this site should be considered a solicitation to buy or an offer to sell shares of the Funds in any jurisdiction where the offer or solicitation would be unlawful under the securities laws of such foreign jurisdiction or the United States.

For the current holdings of the Parnassus Core Equity Fund, the Parnassus Growth Equity Fund, the Parnassus Value Equity Fund, the Parnassus Mid Cap Fund, the Parnassus Mid Cap Growth Fund, the Parnassus International Equity Fund, the Parnassus Core Select ETF, and the Parnassus Value Select ETF, please visit each fund’s individual holdings page. Fund holdings are subject to change at any time.

ETFs are subject to additional risks that do not apply to conventional funds, including the risks that the market price of an ETF's shares may trade at a premium or discount to its net asset value, an active secondary trading market may not develop or be maintained, or trading may be halted by the exchange in which they trade, which may impact an ETF's ability to sell its shares. Shares of any ETF are bought and sold at market price (not NAV) and are not individually redeemed from the ETF. Brokerage commissions will reduce returns.

For current quarter-end standardized performance and disclosure information, please click here.

Performance data quoted represent past performance and are no guarantee of future returns. Current performance may be lower or higher than the performance data quoted. Current performance information to the most recent month end is available on the Parnassus website (www.parnassus.com). Investment return and principal value will fluctuate so that an investor's shares, when redeemed, may be worth more or less than their original principal cost.

Before investing, an investor should carefully consider the investment objectives, risks, charges and expenses of a fund and should carefully read the prospectus or summary prospectus, which contains this and other information and can be found in our Literature and Forms section or by calling (800) 999-3505 for a mutual fund prospectus or (855) 514-4443 for an ETF prospectus.

The Parnassus Funds are distributed by Parnassus Funds Distributor, LLC.

Research our firm with FINRA's BrokerCheck.

This site is intended for U.S. investors only and should not be considered a solicitation or offering to investors outside the U.S.