Simplex Trading
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Simplex Trading’s Rocket Lab Corp RKLB Stock Holding History

Simplex Trading’s Portfolio RKLB Stock Details RKLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$67.7M Sell
666,000
-16,600
-2% -$1.65M 0.04% 194
2026
Q1 		$43.8M Sell
682,600
-128,000
-16% -$9.65M 0.03% 249
2025
Q4 		$56.5M Sell
810,600
-1,143,400
-59% -$65.5M 0.03% 258
2025
Q3 		$93.6M Buy
1,954,000
+455,200
+30% +$20.6M 0.05% 203
2025
Q2 		$53.6M Buy
1,498,800
+67,500
+5% +$1.65M 0.03% 275
2025
Q1 		$25.6M Sell
1,431,300
-21,000
-1% -$503K 0.02% 444
2024
Q4 		$37M Buy
1,452,300
+900
+0.1% +$15.8K 0.02% 392
2024
Q3 		$14.1M Buy
1,451,400
+908,000
+167% +$5.51M 0.01% 820
2024
Q2 		$2.61M Sell
543,400
-160,900
-23% -$671K ﹤0.01% 1966
2024
Q1 		$2.89M Buy
704,300
+510,900
+264% +$2.36M ﹤0.01% 2062
2023
Q4 		$1.07M Buy
193,400
+53,100
+38% +$240K ﹤0.01% 2947
2023
Q3 		$614K Buy
140,300
+30,600
+28% +$186K ﹤0.01% 3187
2023
Q2 		$658K Sell
109,700
-88,300
-45% -$405K ﹤0.01% 3024
2023
Q1 		$799K Buy
198,000
+4,500
+2% +$20.2K ﹤0.01% 2800
2022
Q4 		$729K Buy
193,500
+85,500
+79% +$373K ﹤0.01% 2784
2022
Q3 		$439K Sell
108,000
-17,300
-14% -$85.3K ﹤0.01% 3613
2022
Q2 		$474K Buy
125,300
+23,200
+23% +$137K ﹤0.01% 3501
2022
Q1 		$821K Buy
102,100
+6,100
+6% +$56.8K ﹤0.01% 3152
2021
Q4 		$1.18M Buy
+96,000
New +$1.32M ﹤0.01% 2655
2021
Q3 		– Sell
-109,100
Closed -$1.19M – 9869
2021
Q2 		$1.19M Buy
+109,100
New +$1.13M ﹤0.01% 2858

Other funds holding RKLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Simplex Trading's RKLB Position: Q2 2026 in Review

Simplex Trading increased its Rocket Lab Corp (RKLB) stake by 2,746% in Q2 2026, buying an estimated $3.16M and bringing the position to 32,873 shares worth $3.34M. The position accounts for ﹤0.01% of the portfolio, ranked #1536.

Simplex Trading first reported a position in RKLB in Q4 2021 and has held it in 17 quarters since. The position peaked at $27.9M in Q4 2025. 1,127 funds tracked by Wall St. Rank hold RKLB as of Q2 2026.

  • Simplex Trading held 32,873 shares of Rocket Lab Corp worth $3.34M as of Q2 2026.
  • Simplex Trading bought 31,718 Rocket Lab Corp shares in Q2 2026, an estimated $3.16M.
  • Rocket Lab Corp made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #1536 holding.
  • Simplex Trading first reported a position in Rocket Lab Corp in Q4 2021 and has held it in 17 quarters since.
  • Simplex Trading's Rocket Lab Corp position peaked at $27.9M in Q4 2025.
  • 1,127 funds tracked by Wall St. Rank held Rocket Lab Corp as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.