Optiver Holding’s Monolithic Power Systems MPWR Stock Holding History

Optiver Holding’s Portfolio MPWR Stock Details MPWR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$97.3K	Buy	+89	New	+$97.2K	﹤0.01%	893
2025 Q3	–	Sell	-51	Closed	-$37.3K	–	2813
2025 Q2	$37.3K	Buy	+51	New	+$32.5K	﹤0.01%	674
2025 Q1	–	Sell	-141	Closed	-$83.4K	–	1492
2024 Q4	$83.4K	Buy	141 +76	+117%	+$55K	﹤0.01%	548
2024 Q3	$60.1K	Sell	65 -141	-68%	-$122K	﹤0.01%	554
2024 Q2	$169K	Buy	206 +190	+1,188%	+$137K	﹤0.01%	496
2024 Q1	$10.8K	Buy	+16	New	+$10.7K	﹤0.01%	623
2022 Q1	–	Sell	-155	Closed	-$75K	–	745
2021 Q4	$75K	Hold	155	–	–	﹤0.01%	341
2021 Q3	$75K	Buy	+155	New	+$70.5K	﹤0.01%	275

Other funds holding MPWR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Optiver Holding's MPWR Position: Q1 2026 in Review

Optiver Holding opened a new position in Monolithic Power Systems (MPWR) in Q1 2026: 89 shares worth $97.3K. The stake represents ﹤0.01% of the portfolio and ranks #893 among its holdings. This is a return to the name: Optiver Holding previously reported a position in MPWR as recently as Q2 2025.

Optiver Holding first reported a position in MPWR in Q3 2021 and has held it in 8 quarters since. The position peaked at $169K in Q2 2024. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

Optiver Holding held 89 shares of Monolithic Power Systems worth $97.3K as of Q1 2026.
Monolithic Power Systems was a new Optiver Holding position in Q1 2026.
Monolithic Power Systems made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #893 holding.
Optiver Holding first reported a position in Monolithic Power Systems in Q3 2021 and has held it in 8 quarters since.
Optiver Holding's Monolithic Power Systems position peaked at $169K in Q2 2024.
1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.