Jane Street
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Jane Street’s Janus International JBI Stock Holding History

Jane Street’s Portfolio JBI Stock Details JBI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-53,200
Closed -$348K – 12287
2025
Q4 		$348K Sell
53,200
-100
-0.2% -$779 ﹤0.01% 8495
2025
Q3 		$526K Buy
+53,300
New +$514K ﹤0.01% 7755
2022
Q2 		– Sell
-23,600
Closed -$212K – 10266
2022
Q1 		$212K Sell
23,600
-1,600
-6% -$16.2K ﹤0.01% 8952
2021
Q4 		$316K Buy
+25,200
New +$322K ﹤0.01% 8068

Other funds holding JBI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CB
Cooke & Bieler Philadelphia, Pennsylvania $8.65B AUM 9.66% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
RRAM
River Road Asset Management Louisville, Kentucky $8.99B AUM 12.83% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jane Street's JBI Position: Q1 2026 in Review

Jane Street increased its Janus International (JBI) stake by 583% in Q1 2026, buying an estimated $2.83M and bringing the position to 511,709 shares worth $2.64M. The position accounts for ﹤0.01% of the portfolio, ranked #4585.

Jane Street first reported a position in JBI in Q4 2021 and has held it in 17 quarters since. The position peaked at $3.73M in Q3 2025. 204 funds tracked by Wall St. Rank hold JBI as of Q1 2026.

  • Jane Street held 511,709 shares of Janus International worth $2.64M as of Q1 2026.
  • Jane Street bought 436,764 Janus International shares in Q1 2026, an estimated $2.83M.
  • Janus International made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #4585 holding.
  • Jane Street first reported a position in Janus International in Q4 2021 and has held it in 17 quarters since.
  • Jane Street's Janus International position peaked at $3.73M in Q3 2025.
  • 204 funds tracked by Wall St. Rank held Janus International as of Q1 2026.

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