Jane Street
OSG

Jane Street’s Octave Specialty Group OSG Stock Holding History

Jane Street’s Portfolio OSG Stock Details OSG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.74M Sell
278,731
-485,653
-64% -$2.53M ﹤0.01% 5442
2026
Q1 		$3.55M Sell
764,384
-756,270
-50% -$4.33M ﹤0.01% 4048
2025
Q4 		$11.8M Buy
1,520,654
+671,472
+79% +$5.74M ﹤0.01% 2124
2025
Q3 		$7.08M Buy
849,182
+336,739
+66% +$2.84M ﹤0.01% 2901
2025
Q2 		$3.64M Sell
512,443
-211,651
-29% -$1.58M ﹤0.01% 3456
2025
Q1 		$6.34M Buy
724,094
+407,918
+129% +$4.3M ﹤0.01% 2575
2024
Q4 		$4M Buy
316,176
+78,457
+33% +$946K ﹤0.01% 2986
2024
Q3 		$2.66M Buy
237,719
+51,057
+27% +$597K ﹤0.01% 3930
2024
Q2 		$2.39M Buy
186,662
+36,693
+24% +$560K ﹤0.01% 4182
2024
Q1 		$2.34M Sell
149,969
-49,090
-25% -$774K ﹤0.01% 3847
2023
Q4 		$3.28M Buy
199,059
+13,790
+7% +$192K ﹤0.01% 3493
2023
Q3 		$2.23M Buy
185,269
+130,855
+240% +$1.76M ﹤0.01% 3861
2023
Q2 		$775K Buy
54,414
+31,600
+139% +$462K ﹤0.01% 5634
2023
Q1 		$353K Buy
+22,814
New +$369K ﹤0.01% 6916
2022
Q4 		– Sell
-127,853
Closed -$1.63M – 9064
2022
Q3 		$1.63M Buy
127,853
+38,990
+44% +$519K ﹤0.01% 4548
2022
Q2 		$1.01M Sell
88,863
-18,514
-17% -$176K ﹤0.01% 5474
2022
Q1 		$1.12M Buy
107,377
+72,351
+207% +$981K ﹤0.01% 5903
2021
Q4 		$562K Buy
+35,026
New +$550K ﹤0.01% 7037
2021
Q2 		– Sell
-40,945
Closed -$658K – 9712
2021
Q1 		$686K Buy
+40,945
New +$669K ﹤0.01% 6206
2020
Q3 		– Sell
-11,801
Closed -$152K – 7099
2020
Q2 		$169K Buy
+11,801
New +$172K ﹤0.01% 6472
2018
Q4 		– Sell
-29,477
Closed -$602K – 4875
2018
Q3 		$602K Buy
+29,477
New +$615K ﹤0.01% 3390
2017
Q1 		– Sell
-12,213
Closed -$275K – 4080
2016
Q4 		$275K Buy
+12,213
New +$267K ﹤0.01% 3444

Other funds holding OSG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WSL
Western Standard LLC Los Angeles, California $295M AUM 40.98% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1.16B AUM 53.61% 1-Year Est. Return
TAM
Third Avenue Management New York $625M AUM 48.93% 1-Year Est. Return
BCC
Bain Capital Credit Boston, Massachusetts $368M AUM 9.33% 1-Year Est. Return
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Jane Street's OSG Position: Q2 2026 in Review

Jane Street reduced its Octave Specialty Group (OSG) stake by 64% in Q2 2026, selling an estimated $2.53M and leaving 278,731 shares worth $1.74M. The position accounts for ﹤0.01% of the portfolio, ranked #5442.

Jane Street first reported a position in OSG in Q4 2016 and has held it in 22 quarters since. The position peaked at $11.8M in Q4 2025. 148 funds tracked by Wall St. Rank hold OSG as of Q2 2026.

  • Jane Street held 278,731 shares of Octave Specialty Group worth $1.74M as of Q2 2026.
  • Jane Street sold 485,653 Octave Specialty Group shares in Q2 2026, an estimated $2.53M.
  • Octave Specialty Group made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #5442 holding.
  • Jane Street first reported a position in Octave Specialty Group in Q4 2016 and has held it in 22 quarters since.
  • Jane Street's Octave Specialty Group position peaked at $11.8M in Q4 2025.
  • 148 funds tracked by Wall St. Rank held Octave Specialty Group as of Q2 2026.

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