Institutional Manager · CIK 0001665097

Index Fund Advisors, Inc.

IRVINE, CA · File #028-21495

Latest AUM

$2.13B

Positions

146

Top-10 Concentration

87.9%

Filings

Portfolio Value Over Time

2024-03

2024-06

2024-09

2024-12

2025-03

2025-06

2025-09

2025-12

Biggest QoQ Changes

Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.

Action	Issuer	Ticker / CUSIP	Δ Shares	Flow ($)	Price Effect
ADD	DIMENSIONAL ETF TRUST	25434V708	+123,714	+$4.9M	+$110,804
REDUCE	DIMENSIONAL ETF TRUST	25434V609	-77,874	-$4.6M	+$8.7M
REDUCE	DIMENSIONAL ETF TRUST	25434V724	-93,610	-$4.4M	+$11.1M
ADD	DIMENSIONAL ETF TRUST	25434V815	+129,096	+$4.2M	+$2.5M
REDUCE	DIMENSIONAL ETF TRUST	25434V401	-40,206	-$3.0M	+$8.6M
REDUCE	DIMENSIONAL ETF TRUST	25434V807	-57,403	-$2.9M	+$13.7M
ADD	DIMENSIONAL ETF TRUST	25434V591	+56,534	+$2.9M	-$5,805
ADD	DIMENSIONAL ETF TRUST	25434V666	+66,248	+$2.3M	+$1.5M
ADD	DIMENSIONAL ETF TRUST	25434V831	+48,401	+$1.8M	+$18,139
ADD	DIMENSIONAL ETF TRUST	25434V658	+65,507	+$1.7M	-$704,181

Sector Allocation

Technology

1.3%$26.8M

Consumer Discretionary

0.5%$10.4M

Healthcare

0.4%$8.3M

Financials

0.3%$7.6M

Communication Services

0.2%$4.8M

0.1%$1.2M

0.0%$1.0M

0.0%$724,545

0.0%$220,749

Filing History

Jan 29, 202613F HOLDINGS REPORTQ/E Dec 2025146 pos · $2.13B
Oct 22, 202513F HOLDINGS REPORTQ/E Sep 2025145 pos · $2.06B
Jul 25, 202513F HOLDINGS REPORTQ/E Jun 2025144 pos · $1.78B
Apr 30, 202513F HOLDINGS REPORTQ/E Mar 202595 pos · $1.62B
Jan 29, 202513F HOLDINGS REPORTQ/E Dec 2024106 pos · $1.85B
Oct 22, 202413F HOLDINGS REPORTQ/E Sep 2024108 pos · $1.89B
Aug 2, 202413F HOLDINGS REPORTQ/E Jun 202496 pos · $1.77B
May 13, 202413F HOLDINGS REPORTQ/E Mar 202496 pos · $1.81B
Oct 20, 202313F HOLDINGS REPORTQ/E Dec 202397 pos · $1.51B

Top 20 Holdings — Dec 2025

#	Issuer	Ticker	Shares	Value	% of Portfolio
1	DIMENSIONAL ETF TRUST	25434V500	5,844,597	$407.2M	19.61%
2	DIMENSIONAL ETF TRUST	25434V609	6,442,632	$383.6M	18.47%
3	DIMENSIONAL ETF TRUST	25434V401	4,952,650	$367.3M	17.69%
4	DIMENSIONAL ETF TRUST	25434V724	5,733,670	$267.1M	12.86%
5	DIMENSIONAL ETF TRUST	25434V807	3,571,373	$178.2M	8.58%
6	DIMENSIONAL ETF TRUST	25434V815	2,556,867	$84.1M	4.05%
7	DIMENSIONAL ETF TRUST	25434V666	1,205,736	$41.2M	1.99%
8	ISHARES TR	46436E718	381,204	$38.3M	1.84%
9	VANGUARD BD INDEX FDS	921937835	482,819	$35.8M	1.72%
10	DIMENSIONAL ETF TRUST	25434V658	856,707	$22.6M	1.09%
11	DIMENSIONAL ETF TRUST	25434V781	582,980	$22.2M	1.07%
12	DIMENSIONAL ETF TRUST	25434V773	636,492	$21.0M	1.01%
13	DIMENSIONAL ETF TRUST	25434V302	537,666	$17.5M	0.84%
14	VANGUARD STAR FDS	921909768	225,385	$17.0M	0.82%
15	VANGUARD INDEX FDS	922908769	47,542	$15.9M	0.77%
16	DIMENSIONAL ETF TRUST	25434V740	439,842	$14.8M	0.71%
17	COSTCO WHSL CORP NEW	22160K105	11,105	$9.6M	0.46%
18	DIMENSIONAL ETF TRUST	25434V708	232,355	$9.2M	0.44%
19	ISHARES TR	464287200	12,301	$8.4M	0.41%
20	NVIDIA CORPORATION	NVDA	36,881	$6.9M	0.33%