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PDT Partners’s Calix CALX Stock Holding History

PDT Partners’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
Q2 		– Sell
-37,535
Closed -$1.33M – 700
2025
Q1 		$1.33M Sell
37,535
-19,819
-35% -$735K 0.09% 339
2024
Q4 		$2M Sell
57,354
-14,400
-20% -$507K 0.18% 203
2024
Q3 		$2.78M Sell
71,754
-17,037
-19% -$626K 0.25% 134
2024
Q2 		$3.15M Buy
88,791
+14,261
+19% +$459K 0.3% 100
2024
Q1 		$2.47M Buy
74,530
+4,969
+7% +$185K 0.23% 151
2023
Q4 		$3.04M Buy
69,561
+44,287
+175% +$1.77M 0.34% 81
2023
Q3 		$1.16M Buy
+25,274
New +$1.14M 0.15% 250
2022
Q2 		– Sell
-23,256
Closed -$998K – 972
2022
Q1 		$998K Sell
23,256
-48,344
-68% -$2.45M 0.09% 370
2021
Q4 		$5.73M Sell
71,600
-503
-0.7% -$32.8K 0.44% 27
2021
Q3 		$3.56M Buy
72,103
+52,663
+271% +$2.43M 0.26% 179
2021
Q2 		$923K Buy
+19,440
New +$854K 0.06% 388
2020
Q3 		– Sell
-36,828
Closed -$549K – 730
2020
Q2 		$549K Sell
36,828
-3,479
-9% -$39.9K 0.04% 392
2020
Q1 		$285K Buy
40,307
+20,794
+107% +$175K 0.02% 487
2019
Q4 		$156K Buy
+19,513
New +$145K 0.01% 668
2019
Q3 		– Sell
-49,500
Closed -$325K – 459
2019
Q2 		$325K Buy
49,500
+9,900
+25% +$66.8K 0.02% 338
2019
Q1 		$305K Hold
39,600
– – 0.02% 355
2018
Q4 		$386K Buy
39,600
+12,900
+48% +$112K 0.02% 347
2018
Q3 		$216K Buy
+26,700
New +$204K 0.01% 426
2015
Q1 		– Sell
-68,699
Closed -$688K – 1361
2014
Q4 		$688K Buy
+68,699
New +$684K 0.07% 407
2013
Q4 		– Sell
-61,733
Closed -$786K – 693
2013
Q3 		$786K Buy
61,733
+22,281
+56% +$273K 0.02% 860
2013
Q2 		$398K Buy
+39,452
New +$367K 0.01% 1159

Other funds holding CALX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return

PDT Partners's CALX Position: Q2 2025 in Review

PDT Partners sold out of Calix (CALX) in Q2 2025, closing a stake of 37,535 shares — an estimated $1.33M sold.

PDT Partners first reported a position in CALX in Q2 2013 and held it in 21 quarters. The position peaked at $5.73M in Q4 2021. 295 funds tracked by Wall St. Rank hold CALX as of Q2 2025.

  • PDT Partners reported no remaining Calix position as of Q2 2025 after selling out during the quarter.
  • PDT Partners sold 37,535 Calix shares in Q2 2025, an estimated $1.33M.
  • PDT Partners first reported a position in Calix in Q2 2013 and held it in 21 quarters.
  • PDT Partners's Calix position peaked at $5.73M in Q4 2021.
  • 295 funds tracked by Wall St. Rank held Calix as of Q2 2025.

Based on PDT Partners's 13F filing for Q2 2025, filed 14 Aug 2025.