Institutional Manager · CIK 0001708872

Blankinship & Foster, LLC

Solana Beach, CA · File #028-18089

Latest AUM

$462.7M

Positions

Top-10 Concentration

82.4%

Filings

Portfolio Value Over Time

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
REDUCE	DIMENSIONAL ETF TRUST	25434V104	-70,838	-$3.3M	+$2.8M
REDUCE	VANGUARD INDEX FDS	922908769	-2,537	-$850,583	+$733,463
REDUCE	VANGUARD INDEX FDS	922908736	-1,612	-$786,428	+$578,612
ADD	VANGUARD INTL EQUITY INDEX F	922042775	+10,686	+$786,062	+$1.4M
REDUCE	ISHARES TR	46434V803	-14,046	-$580,942	+$1.4M
ADD	VANGUARD INTL EQUITY INDEX F	922042858	+8,222	+$442,015	-$126,273
NEW	J P MORGAN EXCHANGE TRADED F	46654Q203	+6,000	+$348,720	$0
REDUCE	DBX ETF TR	233051200	-6,516	-$313,485	+$942,533
ADD	VANGUARD INDEX FDS	922908629	+985	+$285,868	-$384,951
NEW	MODIV INDUSTRIAL INC	MDV-PA	+15,217	+$218,973	$0

Sector Allocation

Technology

2.0%$9.3M

Healthcare

1.1%$5.0M

Consumer Discretionary

0.3%$1.3M

Energy

0.3%$1.3M

Real Estate

0.2%$909,095

Industrials

0.2%$816,913

Communication Services

0.1%$689,097

Financials

0.1%$643,984

Consumer Staples

0.1%$536,527

Filing History

Jan 23, 202613F HOLDINGS REPORTQ/E Dec 202579 pos · $462.7M
Nov 3, 202513F HOLDINGS REPORTQ/E Sep 202577 pos · $457.4M
Aug 8, 202513F HOLDINGS REPORTQ/E Jun 202575 pos · $427.1M
May 6, 202513F HOLDINGS REPORTQ/E Mar 202569 pos · $396.1M
Apr 25, 202513F HOLDINGS REPORT (Amended)Q/E Mar 202571 pos · $409.1M
Feb 7, 202513F HOLDINGS REPORTQ/E Dec 202472 pos · $406.6M
Nov 25, 202413F HOLDINGS REPORTQ/E Sep 2024153 pos · $610.5M
Aug 14, 202413F HOLDINGS REPORTQ/E Jun 202471 pos · $388.1M
Aug 14, 202413F HOLDINGS REPORTQ/E Jun 202467 pos · $381.6M
Oct 31, 202313F HOLDINGS REPORTQ/E Dec 202357 pos · $302.4M

Top 20 Holdings — Dec 2025

#	Issuer	Ticker	Shares	Value	% of Portfolio
1	DIMENSIONAL ETF TRUST	25434V104	2,654,562	$124.2M	27.32%
2	VANGUARD INTL EQUITY INDEX F	922042775	647,240	$47.6M	10.47%
3	VANGUARD INDEX FDS	922908769	100,740	$33.8M	7.43%
4	ISHARES TR	46434V803	810,326	$33.5M	7.37%
5	VANGUARD INDEX FDS	922908736	68,535	$33.4M	7.35%
6	VANGUARD INDEX FDS	922908629	110,408	$32.0M	7.05%
7	DBX ETF TR	233051200	551,174	$26.5M	5.83%
8	VANGUARD WORLD FD	92204A207	80,445	$17.0M	3.74%
9	VANGUARD INTL EQUITY INDEX F	922042858	308,874	$16.6M	3.65%
10	ISHARES TR	464287226	100,619	$10.0M	2.21%
11	ISHARES TR	464287465	91,639	$8.8M	1.94%
12	ISHARES TR	464288588	81,702	$7.8M	1.71%
13	SPDR S&P 500 ETF TR	SPY	7,562	$5.2M	1.13%
14	APPLE INC	AAPL	18,609	$5.1M	1.11%
15	BERKSHIRE HATHAWAY INC DEL	BRK-A	5	$3.8M	0.83%
16	BERKSHIRE HATHAWAY INC DEL	BRK-A	7,153	$3.6M	0.79%
17	ABBVIE INC	ABBV	15,512	$3.5M	0.78%
18	SCHWAB STRATEGIC TR	808524508	101,885	$3.1M	0.67%
19	VANGUARD INDEX FDS	922908637	9,002	$2.8M	0.62%
20	ALPHABET INC	GOOG	8,762	$2.7M	0.60%