Main Street Research’s Vanguard S&P 500 ETF VOO Stock Holding History

Main Street Research’s Portfolio VOO Stock Details VOO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$796K	Buy	1,332 +819	+160%	+$512K	0.05%	67
2025 Q4	$322K	Sell	513 -544	-51%	-$338K	0.02%	98
2025 Q3	$647K	Buy	1,057 +466	+79%	+$275K	0.04%	70
2025 Q2	$337K	Sell	591 -181	-23%	-$95.1K	0.02%	91
2025 Q1	$397K	Sell	772 -700	-48%	-$378K	0.03%	77
2024 Q4	$793K	Buy	1,472 +504	+52%	+$273K	0.05%	64
2024 Q3	$512K	Sell	968 -4	-0.4%	-$2.03K	0.03%	70
2024 Q2	$488K	Buy	972 +28	+3%	+$13.5K	0.03%	64
2024 Q1	$454K	Sell	944 -4	-0.4%	-$1.83K	0.03%	69
2023 Q4	$414K	Sell	948 -35	-4%	-$14.3K	0.03%	73
2023 Q3	$387K	Buy	983 +69	+8%	+$28.2K	0.04%	73
2023 Q2	$374K	Buy	+914	New	+$353K	0.06%	73
2022 Q2	–	Sell	-627	Closed	-$260K	–	122
2022 Q1	$260K	Buy	627 +135	+27%	+$55.3K	0.02%	102
2021 Q4	$215K	Buy	+492	New	+$208K	0.02%	133

Other funds holding VOO

VGA

Vanguard Global Advisers Malvern, Pennsylvania $187B AUM

California Public Employees Retirement System Sacramento, California $162B AUM 25.78% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Jones Financial Companies Des Peres, Missouri $208B AUM 16.12% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return

Acorns Advisers Irvine, California $13.5B AUM 15.15% 1-Year Est. Return

Main Street Research's VOO Position: Q1 2026 in Review

Main Street Research increased its Vanguard S&P 500 ETF (VOO) stake by 160% in Q1 2026, buying an estimated $512K and bringing the position to 1,332 shares worth $796K. The position accounts for 0.05% of the portfolio, ranked #67.

Main Street Research first reported a position in VOO in Q4 2021 and has held it in 14 quarters since. 3,829 funds tracked by Wall St. Rank hold VOO as of Q1 2026.

Main Street Research held 1,332 shares of Vanguard S&P 500 ETF worth $796K as of Q1 2026.
Main Street Research bought 819 Vanguard S&P 500 ETF shares in Q1 2026, an estimated $512K.
Vanguard S&P 500 ETF made up 0.05% of Main Street Research's portfolio in Q1 2026, its #67 holding.
Main Street Research first reported a position in Vanguard S&P 500 ETF in Q4 2021 and has held it in 14 quarters since.
3,829 funds tracked by Wall St. Rank held Vanguard S&P 500 ETF as of Q1 2026.

Based on Main Street Research's 13F filing for Q1 2026, filed 30 Apr 2026.