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INDEX FUND ADVISORS, INC.
CRD 109143File 801-57978
APPROVED
Retail clients
Custody
Filing as of Mar 25, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$5.93B
Top 25% of cohort (national)
Discretionary AUM
$5.93B
Clients
2,159
6,664 accounts
Employees
50
Top 25% of cohort in CA
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- LARO
- Registration date
- Sep 28, 2000
- Principal office
- 19200 VON KARMAN AVE, SUITE 150, IRVINE, CA, 92612-6566
- Phone
- 949-502-0050
- Website
- HTTP://WWW.IFA.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $5.93B
- Discretionary AUM
- $5.93B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 6,664
- Non-discretionary accounts
- 0
- Total accounts
- 6,664
- AUM per client
- $2.7M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Charitable organizations | 52 | $480.7M |
| High net worth individuals | 909 | $4.35B |
| Pension and profit sharing plans | 12 | $205.1M |
| Individuals (other than high net worth individuals) | 1,186 | $890.6M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- Other
- Publications
- Financial planning services
- Portfolio management for other
- Portfolio management for businesses
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Apr 1, 2026 | Clients | 2,403 | 2,159 | decreased by244 |
| Apr 1, 2026 | AUM | $5,329,171,931 | $5,929,710,382 | increased by$600,538,451 |
| Apr 1, 2026 | Accounts | 7,146 | 6,664 | decreased by482 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 48 | 50 | increased by2 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 2,371 | 2,403 | increased by32 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $4,937,682,218 | $5,329,171,931 | increased by$391,489,713 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 6,355 | 7,146 | increased by791 |
| Apr 1, 2022 | Employees | 41 | 48 | increased by7 |
| Apr 1, 2022 | Clients | 2,352 | 2,371 | increased by19 |
| Apr 1, 2022 | AUM | $4,132,878,908 | $4,937,682,218 | increased by$804,803,310 |
| Apr 1, 2022 | Accounts | 6,120 | 6,355 | increased by235 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “INDEX FUND” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“INDEX FUND” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.