Jane Street
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Jane Street’s RUM Group Inc RUM Stock Holding History

Jane Street’s Portfolio RUM Stock Details RUM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.91M Buy
775,008
+343,374
+80% +$2.44M ﹤0.01% 3745
2026
Q1 		$2.2M Buy
431,634
+295,023
+216% +$1.69M ﹤0.01% 4899
2025
Q4 		$863K Sell
136,611
-319,473
-70% -$2.19M ﹤0.01% 6439
2025
Q3 		$3.3M Buy
456,084
+381,196
+509% +$3.12M ﹤0.01% 4062
2025
Q2 		$672K Buy
+74,888
New +$640K ﹤0.01% 6381
2025
Q1 		– Sell
-68,415
Closed -$714K – 10444
2024
Q4 		$890K Buy
68,415
+16,118
+31% +$115K ﹤0.01% 5609
2024
Q3 		$280K Sell
52,297
-19,190
-27% -$113K ﹤0.01% 8141
2024
Q2 		$397K Sell
71,487
-25,468
-26% -$164K ﹤0.01% 7385
2024
Q1 		$783K Sell
96,955
-47,242
-33% -$305K ﹤0.01% 5853
2023
Q4 		$647K Sell
144,197
-355,495
-71% -$1.73M ﹤0.01% 6325
2023
Q3 		$2.55M Buy
499,692
+412,738
+475% +$3.08M ﹤0.01% 3633
2023
Q2 		$776K Sell
86,954
-101,830
-54% -$959K ﹤0.01% 5630
2023
Q1 		$1.89M Buy
+188,784
New +$1.7M ﹤0.01% 3935
2022
Q1 		– Sell
-160,537
Closed -$1.99M – 10930
2021
Q4 		$1.74M Buy
+160,537
New +$1.7M ﹤0.01% 4754

Other funds holding RUM

CF
Cantor Fitzgerald New York $9.31B AUM 73.66% 1-Year Est. Return
CCPM
Cooper Creek Partners Management New York $4.21B AUM 44.81% 1-Year Est. Return
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Jane Street's RUM Position: Q2 2026 in Review

Jane Street increased its RUM Group Inc (RUM) stake by 80% in Q2 2026, buying an estimated $2.44M and bringing the position to 775,008 shares worth $4.91M. The position accounts for ﹤0.01% of the portfolio, ranked #3745.

Jane Street first reported a position in RUM in Q4 2021 and has held it in 14 quarters since. 228 funds tracked by Wall St. Rank hold RUM as of Q2 2026.

  • Jane Street held 775,008 shares of RUM Group Inc worth $4.91M as of Q2 2026.
  • Jane Street bought 343,374 RUM Group Inc shares in Q2 2026, an estimated $2.44M.
  • RUM Group Inc made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #3745 holding.
  • Jane Street first reported a position in RUM Group Inc in Q4 2021 and has held it in 14 quarters since.
  • 228 funds tracked by Wall St. Rank held RUM Group Inc as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.