Rakuten Investment Management
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Rakuten Investment Management’s Rambus RMBS Stock Holding History

Rakuten Investment 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 		$1.73M Buy
13,968
+3,341
+31% +$434K 0.01% 408
2026
Q1 		$847K Buy
10,627
+698
+7% +$69.7K ﹤0.01% 432
2025
Q4 		$929K Sell
9,929
-42,458
-81% -$4.18M ﹤0.01% 514
2025
Q3 		$7.49M Buy
+52,387
New +$4.04M 0.03% 187
2024
Q3 		– Sell
-6,620
Closed -$375K – 541
2024
Q2 		$375K Buy
6,620
+3,103
+88% +$177K ﹤0.01% 424
2024
Q1 		$217K Buy
+3,517
New +$223K ﹤0.01% 430

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 $3.38T AUM 44.17% 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

Rakuten Investment Management's RMBS Position: Q2 2026 in Review

Rakuten Investment Management increased its Rambus (RMBS) stake by 31% in Q2 2026, buying an estimated $434K and bringing the position to 13,968 shares worth $1.73M. The position accounts for 0.01% of the portfolio, ranked #408.

Rakuten Investment Management first reported a position in RMBS in Q1 2024 and has held it in 6 quarters since. The position peaked at $7.49M in Q3 2025. 620 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • Rakuten Investment Management held 13,968 shares of Rambus worth $1.73M as of Q2 2026.
  • Rakuten Investment Management bought 3,341 Rambus shares in Q2 2026, an estimated $434K.
  • Rambus made up 0.01% of Rakuten Investment Management's portfolio in Q2 2026, its #408 holding.
  • Rakuten Investment Management first reported a position in Rambus in Q1 2024 and has held it in 6 quarters since.
  • Rakuten Investment Management's Rambus position peaked at $7.49M in Q3 2025.
  • 620 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on Rakuten Investment Management's 13F filing for Q2 2026, filed 18 Aug 2026.