Jane Street
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Jane Street’s MediaAlpha MAX Stock Holding History

Jane Street’s Portfolio MAX Stock Details MAX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-11,800
Closed -$110K – 12494
2026
Q1 		$110K Buy
+11,800
New +$116K ﹤0.01% 10595
2025
Q4 		– Sell
-16,500
Closed -$188K – 11874
2025
Q3 		$188K Buy
+16,500
New +$182K ﹤0.01% 9730
2024
Q4 		– Sell
-19,600
Closed -$355K – 10089
2024
Q3 		$355K Buy
19,600
+300
+2% +$4.78K ﹤0.01% 7760
2024
Q2 		$254K Buy
+19,300
New +$355K ﹤0.01% 8047

Other funds holding MAX

WMIG
White Mountains Insurance Group Hanover, New Hampshire $394M AUM 22.47% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
CC
Clearline Capital New York $1.68B AUM 53.07% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
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
DSCM
Divisadero Street Capital Management Miami, Florida $4.41B AUM 90.53% 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
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
JAM
Jacobs Asset Management New York $159M AUM 30.93% 1-Year Est. Return

Jane Street's MAX Position: Q2 2026 in Review

Jane Street increased its MediaAlpha (MAX) stake by 95% in Q2 2026, buying an estimated $2.54M and bringing the position to 551,625 shares worth $6.93M. The position accounts for ﹤0.01% of the portfolio, ranked #3273.

Jane Street first reported a position in MAX in Q2 2021 and has held it in 14 quarters since. 154 funds tracked by Wall St. Rank hold MAX as of Q2 2026.

  • Jane Street held 551,625 shares of MediaAlpha worth $6.93M as of Q2 2026.
  • Jane Street bought 268,617 MediaAlpha shares in Q2 2026, an estimated $2.54M.
  • MediaAlpha made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #3273 holding.
  • Jane Street first reported a position in MediaAlpha in Q2 2021 and has held it in 14 quarters since.
  • 154 funds tracked by Wall St. Rank held MediaAlpha as of Q2 2026.

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