ACM
RMBS icon

Aster Capital Management’s Rambus RMBS Stock Holding History

Aster Capital 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 		$2.11M Buy
+15,898
New +$2.07M 0.45% 52
2026
Q1 		– Sell
-131
Closed -$12K – 1253
2025
Q4 		$12K Buy
+131
New +$12.9K 0.01% 718
2025
Q1 		– Sell
-1,385
Closed -$73.2K – 1610
2024
Q4 		$73.2K Buy
+1,385
New +$70.6K 0.03% 433

Other funds holding RMBS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Aster Capital Management's RMBS Position: Q2 2026 in Review

Aster Capital Management opened a new position in Rambus (RMBS) in Q2 2026: 15,898 shares worth $2.11M. The stake represents 0.45% of the portfolio and ranks #52 among its holdings. This is a return to the name: Aster Capital Management previously reported a position in RMBS as recently as Q4 2025.

Aster Capital Management first reported a position in RMBS in Q4 2024 and has held it in 3 quarters since. 617 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • Aster Capital Management held 15,898 shares of Rambus worth $2.11M as of Q2 2026.
  • Rambus was a new Aster Capital Management position in Q2 2026.
  • Rambus made up 0.45% of Aster Capital Management's portfolio in Q2 2026, its #52 holding.
  • Aster Capital Management first reported a position in Rambus in Q4 2024 and has held it in 3 quarters since.
  • 617 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on Aster Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.