Twin Tree Management’s Rambus RMBS Stock Holding History

Twin Tree 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	$530K	Buy	+3,992	New	+$519K	0.01%	1007
2026 Q1	–	Sell	-455	Closed	-$41.8K	–	1649
2025 Q4	$41.8K	Sell	455 -5,169	-92%	-$509K	﹤0.01%	1313
2025 Q3	$586K	Buy	+5,624	New	+$434K	﹤0.01%	1260
2025 Q2	–	Sell	-16,172	Closed	-$867K	–	1877
2025 Q1	$837K	Buy	+16,172	New	+$950K	﹤0.01%	1286
2024 Q4	–	Sell	-90,245	Closed	-$4.6M	–	1871
2024 Q3	$3.81M	Buy	+90,245	New	+$4.37M	0.01%	983
2023 Q3	–	Sell	-358,789	Closed	-$23M	–	1481
2023 Q2	$23M	Buy	358,789 +296,755	+478%	+$16.3M	0.04%	376
2023 Q1	$3.18M	Buy	+62,034	New	+$2.66M	0.01%	827

Other funds holding RMBS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Twin Tree Management's RMBS Position: Q2 2026 in Review

Twin Tree Management opened a new position in Rambus (RMBS) in Q2 2026: 3,992 shares worth $530K. The stake represents 0.01% of the portfolio and ranks #1007 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in RMBS as recently as Q4 2025.

Twin Tree Management first reported a position in RMBS in Q1 2023 and has held it in 7 quarters since. The position peaked at $23M in Q2 2023. 617 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

Twin Tree Management held 3,992 shares of Rambus worth $530K as of Q2 2026.
Rambus was a new Twin Tree Management position in Q2 2026.
Rambus made up 0.01% of Twin Tree Management's portfolio in Q2 2026, its #1007 holding.
Twin Tree Management first reported a position in Rambus in Q1 2023 and has held it in 7 quarters since.
Twin Tree Management's Rambus position peaked at $23M in Q2 2023.
617 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.