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
2026
Q2 		$321K Buy
8,600
+3,900
+83% +$164K ﹤0.01% 9060
2026
Q1 		$230K Sell
4,700
-6,800
-59% -$357K ﹤0.01% 9819
2025
Q4 		$609K Sell
11,500
-16,500
-59% -$961K ﹤0.01% 7260
2025
Q3 		$1.72M Sell
28,000
-7,500
-21% -$432K ﹤0.01% 5217
2025
Q2 		$1.89M Sell
35,500
-16,800
-32% -$719K ﹤0.01% 4512
2025
Q1 		$1.85M Buy
+52,300
New +$1.94M ﹤0.01% 4489
2024
Q3 		– Sell
-14,000
Closed -$496K – 9620
2024
Q2 		$496K Buy
14,000
+7,000
+100% +$225K ﹤0.01% 7038
2024
Q1 		$232K Sell
7,000
-2,200
-24% -$82K ﹤0.01% 7957
2023
Q4 		$402K Sell
9,200
-15,800
-63% -$632K ﹤0.01% 7148
2023
Q3 		$1.15M Buy
25,000
+14,800
+145% +$670K ﹤0.01% 4976
2023
Q2 		$509K Sell
10,200
-3,300
-24% -$159K ﹤0.01% 6299
2023
Q1 		$723K Sell
13,500
-2,200
-14% -$120K ﹤0.01% 5656
2022
Q4 		$1.07M Sell
15,700
-8,800
-36% -$591K ﹤0.01% 4882
2022
Q3 		$1.5M Buy
24,500
+9,400
+62% +$503K ﹤0.01% 4688
2022
Q2 		$516K Sell
15,100
-6,500
-30% -$242K ﹤0.01% 6684
2022
Q1 		$927K Sell
21,600
-89,800
-81% -$4.54M ﹤0.01% 6291
2021
Q4 		$8.91M Buy
111,400
+31,900
+40% +$2.08M ﹤0.01% 2030
2021
Q3 		$3.93M Buy
79,500
+23,800
+43% +$1.1M ﹤0.01% 3143
2021
Q2 		$2.65M Buy
+55,700
New +$2.45M ﹤0.01% 3793
2016
Q4 		– Sell
-170,000
Closed -$1.25M – 4042
2016
Q3 		$1.25M Buy
+170,000
New +$1.27M 0.01% 1676

Other funds holding CALX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $30.6B AUM 61.81% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Jane Street's CALX Position: Q2 2026 in Review

Jane Street increased its Calix (CALX) stake by 104% in Q2 2026, buying an estimated $15.4M and bringing the position to 718,768 shares worth $26.8M. The position accounts for ﹤0.01% of the portfolio, ranked #1882.

Jane Street first reported a position in CALX in Q2 2013 and has held it in 28 quarters since. 287 funds tracked by Wall St. Rank hold CALX as of Q2 2026.

  • Jane Street held 718,768 shares of Calix worth $26.8M as of Q2 2026.
  • Jane Street bought 366,823 Calix shares in Q2 2026, an estimated $15.4M.
  • Calix made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #1882 holding.
  • Jane Street first reported a position in Calix in Q2 2013 and has held it in 28 quarters since.
  • 287 funds tracked by Wall St. Rank held Calix as of Q2 2026.

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