Jane Street
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Jane Street’s MBIA MBI Stock Holding History

Jane Street’s Portfolio MBI Stock Details MBI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$415K Buy
+70,300
New +$448K ﹤0.01% 8485
2025
Q1 		– Sell
-14,900
Closed -$96.3K – 10139
2024
Q4 		$96.3K Buy
+14,900
New +$76.8K ﹤0.01% 8775
2024
Q1 		– Sell
-369,800
Closed -$2.26M – 9725
2023
Q4 		$2.26M Buy
+369,800
New +$2.97M ﹤0.01% 4109
2022
Q4 		– Sell
-38,900
Closed -$358K – 9721
2022
Q3 		$358K Sell
38,900
-81,800
-68% -$970K ﹤0.01% 7295
2022
Q2 		$1.49M Buy
120,700
+30,500
+34% +$401K ﹤0.01% 4714
2022
Q1 		$1.39M Buy
90,200
+75,100
+497% +$1.11M ﹤0.01% 5442
2021
Q4 		$238K Buy
15,100
+2,800
+23% +$37K ﹤0.01% 8555
2021
Q3 		$158K Buy
+12,300
New +$142K ﹤0.01% 9026
2020
Q3 		– Sell
-35,000
Closed -$254K – 7599
2020
Q2 		$254K Buy
+35,000
New +$254K ﹤0.01% 6077
2018
Q1 		– Sell
-22,900
Closed -$168K – 5165
2017
Q4 		$168K Buy
+22,900
New +$178K ﹤0.01% 4258
2016
Q1 		– Sell
-20,800
Closed -$135K – 4428
2015
Q4 		$135K Buy
+20,800
New +$141K ﹤0.01% 3733
2015
Q3 		– Sell
-72,100
Closed -$433K – 3931
2015
Q2 		$433K Buy
+72,100
New +$651K ﹤0.01% 2441

Other funds holding MBI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.03B AUM 80.44% 1-Year Est. Return
KBG
Kahn Brothers Group New York $564M AUM 25.3% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
V
ValueWorks New York $367M AUM 59.38% 1-Year Est. Return
HP
Hosking Partners London, United Kingdom $2.79B AUM 58.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
TG
TCW Group Los Angeles, California $13.3B AUM 34.44% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Jane Street's MBI Position: Q1 2026 in Review

Jane Street reduced its MBIA (MBI) stake by 6.8% in Q1 2026, selling an estimated $144K and leaving 309,736 shares worth $1.83M. The position accounts for ﹤0.01% of the portfolio, ranked #5264.

Jane Street first reported a position in MBI in Q2 2013 and has held it in 33 quarters since. The position peaked at $2.39M in Q3 2025. 133 funds tracked by Wall St. Rank hold MBI as of Q1 2026.

  • Jane Street held 309,736 shares of MBIA worth $1.83M as of Q1 2026.
  • Jane Street sold 22,537 MBIA shares in Q1 2026, an estimated $144K.
  • MBIA made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #5264 holding.
  • Jane Street first reported a position in MBIA in Q2 2013 and has held it in 33 quarters since.
  • Jane Street's MBIA position peaked at $2.39M in Q3 2025.
  • 133 funds tracked by Wall St. Rank held MBIA as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.