Industry Description
This industry comprises legal entities (i.e., open-end investment funds) organized to pool assets that consist of securities or other financial instruments. Shares in these pools are offered to the public in an initial offering with additional shares offered continuously and perpetually and redeemed at a specific price determined by the net asset value.
Illustrative Examples:
Investment funds, open-ended
Money market mutual funds, open-ended
Business Examples
Common types of business activities within NAICS 525910 - Open-End Investment Funds are:
- Mutual funds, open-ended
- Investment funds, open-ended
- Funds, mutual, open-ended
- Management investment offices, open-ended
- Money market mutual funds, open-ended
IBISWorld Industry Research Report
Open-End Investment Funds in the US (52591)
Revenue 2025
$196.1bn
Growth 2025
4.18%
Key Trends
The greatest shift for the industry has been an evolving investor preference for exchange-traded funds
Investors choose open-end investment funds for their exposure to various assets
Investors will favor the lower costs and liquidity associated with ETFs
Products and Services
NAICS Hierarchy 525910 - Open-End Investment Funds
NAICS Code 525910 - Open-End Investment Funds sits in the 2-digit Open-End Investment Funds sector. NAICS codes can be 2- to 6-digits and the further along the hierarchy, the more detailed and specific the category will be. Learn more about the structure of NAICS codes
2 Digits: 52
Sector Title: Finance and Insurance
3 Digits 4 Digits 5 Digits 6 Digits
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5211 Monetary Authorities-Central Bank
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52111 Monetary Authorities-Central Bank
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5221 Depository Credit Intermediation
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52211 Commercial Banking
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52212 Savings Institutions
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52213 Credit Unions
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52219 Other Depository Credit Intermediation
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5222 Nondepository Credit Intermediation
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52221 Credit Card Issuing
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52222 Sales Financing
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52229 Other Nondepository Credit Intermediation
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5223 Activities Related to Credit Intermediation
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52231 Mortgage and Nonmortgage Loan Brokers
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52232 Financial Transactions Processing, Reserve, and Clearinghouse Activities
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52239 Other Activities Related to Credit Intermediation
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5231 Securities and Commodity Contracts Intermediation and Brokerage
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52311 Investment Banking and Securities Dealing
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52312 Securities Brokerage
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52313 Commodity Contracts Dealing
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52314 Commodity Contracts Brokerage
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5232 Securities and Commodity Exchanges
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52321 Securities and Commodity Exchanges
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5239 Other Financial Investment Activities
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52391 Miscellaneous Intermediation
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52392 Portfolio Management
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52393 Investment Advice
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52399 All Other Financial Investment Activities
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5241 Insurance Carriers
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52411 Direct Life, Health, and Medical Insurance Carriers
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52412 Direct Insurance (except Life, Health, and Medical) Carriers
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52413 Reinsurance Carriers
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5242 Agencies, Brokerages, and Other Insurance Related Activities
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52421 Insurance Agencies and Brokerages
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52429 Other Insurance Related Activities
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5251 Insurance and Employee Benefit Funds
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52511 Pension Funds
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52512 Health and Welfare Funds
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52519 Other Insurance Funds
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5259 Other Investment Pools and Funds
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52591 Open-End Investment Funds
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52592 Trusts, Estates, and Agency Accounts
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52599 Other Financial Vehicles
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NAICS Resources
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