OP Asset Management’s Rambus RMBS Stock Holding History

OP Asset Management’s Portfolio RMBS Stock Details RMBS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$485K	Buy	3,656 +2,188	+149%	+$285K	0.01%	674
2026 Q1	$126K	Sell	1,468 -5,097	-78%	-$509K	﹤0.01%	748
2025 Q4	$603K	Sell	6,565 -7,318	-53%	-$720K	0.01%	637
2025 Q3	$1.45M	Sell	13,883 -1,586	-10%	-$122K	0.02%	528
2025 Q2	$990K	Sell	15,469 -6,275	-29%	-$336K	0.01%	610
2025 Q1	$1.13M	Buy	+21,744	New	+$1.28M	0.02%	579

Other funds holding RMBS

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

CAM

Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

SIMG

Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 1-Year Est. Return

Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return

Retirement Systems of Alabama Montgomery, Alabama $33.2B AUM 38.15% 1-Year Est. Return

AssetMark Inc Concord, California $58.2B AUM 22.78% 1-Year Est. Return

SIC

Schwartz Investment Counsel Plymouth, Michigan $3.01B AUM 27.22% 1-Year Est. Return

YIH

Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

OP Asset Management's RMBS Position: Q2 2026 in Review

OP Asset Management increased its Rambus (RMBS) stake by 149% in Q2 2026, buying an estimated $285K and bringing the position to 3,656 shares worth $485K. The position accounts for 0.01% of the portfolio, ranked #674.

OP Asset Management first reported a position in RMBS in Q1 2025 and has held it in 6 quarters since. The position peaked at $1.45M in Q3 2025. 205 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

OP Asset Management held 3,656 shares of Rambus worth $485K as of Q2 2026.
OP Asset Management bought 2,188 Rambus shares in Q2 2026, an estimated $285K.
Rambus made up 0.01% of OP Asset Management's portfolio in Q2 2026, its #674 holding.
OP Asset Management first reported a position in Rambus in Q1 2025 and has held it in 6 quarters since.
OP Asset Management's Rambus position peaked at $1.45M in Q3 2025.
205 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on OP Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.