PEAK6
RMBS icon

PEAK6’s Rambus RMBS Stock Holding History

PEAK6’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
Q1 		– Sell
-21,700
Closed -$1.99M – 3232
2025
Q4 		$1.99M Sell
21,700
-1,400
-6% -$138K ﹤0.01% 1437
2025
Q3 		$2.41M Buy
+23,100
New +$1.78M ﹤0.01% 1403
2025
Q2 		– Sell
-29,300
Closed -$1.52M – 3430
2025
Q1 		$1.52M Buy
29,300
+9,300
+47% +$546K ﹤0.01% 1543
2024
Q4 		$1.06M Buy
+20,000
New +$1.02M ﹤0.01% 1783

Other funds holding RMBS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

PEAK6's RMBS Position: Q1 2026 in Review

PEAK6 sold out of Rambus (RMBS) in Q1 2026, closing a stake of 17,648 shares — an estimated $1.62M sold.

PEAK6 first reported a position in RMBS in Q4 2024 and held it in 4 quarters. The position peaked at $2.62M in Q2 2025. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

  • PEAK6 reported no remaining Rambus position as of Q1 2026 after selling out during the quarter.
  • PEAK6 sold 17,648 Rambus shares in Q1 2026, an estimated $1.62M.
  • PEAK6 first reported a position in Rambus in Q4 2024 and held it in 4 quarters.
  • PEAK6's Rambus position peaked at $2.62M in Q2 2025.
  • 553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.