Jane Street
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Jane Street’s Calix CALX Stock Holding History

Jane Street’s Portfolio CALX Stock Details CALX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-5,800
Closed -$356K – 11206
2025
Q3 		$356K Sell
5,800
-200
-3% -$11.5K ﹤0.01% 8571
2025
Q2 		$319K Sell
6,000
-15,300
-72% -$654K ﹤0.01% 7744
2025
Q1 		$755K Buy
+21,300
New +$790K ﹤0.01% 6090
2023
Q4 		– Sell
-15,600
Closed -$715K – 9220
2023
Q3 		$715K Buy
15,600
+10,800
+225% +$489K ﹤0.01% 5689
2023
Q2 		$240K Buy
4,800
+400
+9% +$19.3K ﹤0.01% 7448
2023
Q1 		$236K Sell
4,400
-2,400
-35% -$131K ﹤0.01% 7579
2022
Q4 		$465K Sell
6,800
-3,400
-33% -$229K ﹤0.01% 6259
2022
Q3 		$624K Sell
10,200
-2,400
-19% -$128K ﹤0.01% 6269
2022
Q2 		$430K Sell
12,600
-17,700
-58% -$658K ﹤0.01% 6996
2022
Q1 		$1.3M Sell
30,300
-5,700
-16% -$288K ﹤0.01% 5572
2021
Q4 		$2.88M Buy
36,000
+12,500
+53% +$816K ﹤0.01% 3761
2021
Q3 		$1.16M Sell
23,500
-8,800
-27% -$406K ﹤0.01% 5610
2021
Q2 		$1.53M Buy
32,300
+26,200
+430% +$1.15M ﹤0.01% 4879
2021
Q1 		$211K Buy
+6,100
New +$226K ﹤0.01% 8194

Other funds holding CALX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Jane Street's CALX Position: Q1 2026 in Review

Jane Street increased its Calix (CALX) stake by 186% in Q1 2026, buying an estimated $12M and bringing the position to 351,945 shares worth $17.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1919.

Jane Street first reported a position in CALX in Q2 2013 and has held it in 27 quarters since. 309 funds tracked by Wall St. Rank hold CALX as of Q1 2026.

  • Jane Street held 351,945 shares of Calix worth $17.2M as of Q1 2026.
  • Jane Street bought 229,036 Calix shares in Q1 2026, an estimated $12M.
  • Calix made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1919 holding.
  • Jane Street first reported a position in Calix in Q2 2013 and has held it in 27 quarters since.
  • 309 funds tracked by Wall St. Rank held Calix as of Q1 2026.

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