Group One Trading
HDSN

Group One Trading’s Hudson Technologies HDSN Stock Holding History

Group One Trading’s Portfolio HDSN Stock Details HDSN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.94K Sell
500
-2,500
-83% -$17.1K ﹤0.01% 6932
2025
Q4 		$20.6K Buy
3,000
+2,900
+2,900% +$22.9K ﹤0.01% 6321
2025
Q3 		$993 Sell
100
-100
-50% -$939 ﹤0.01% 8055
2025
Q2 		$1.62K Sell
200
-700
-78% -$4.8K ﹤0.01% 7463
2025
Q1 		$5.55K Sell
900
-18,400
-95% -$108K ﹤0.01% 6597
2024
Q4 		$108K Buy
19,300
+18,200
+1,655% +$120K ﹤0.01% 4458
2024
Q3 		$9.17K Buy
1,100
+300
+38% +$2.48K ﹤0.01% 5642
2024
Q2 		$7.03K Sell
800
-1,600
-67% -$15.5K ﹤0.01% 5802
2024
Q1 		$26.4K Sell
2,400
-12,300
-84% -$160K ﹤0.01% 5221
2023
Q4 		$198K Sell
14,700
-10,900
-43% -$141K ﹤0.01% 3868
2023
Q3 		$340K Buy
25,600
+5,500
+27% +$59.4K ﹤0.01% 3309
2023
Q2 		$193K Buy
20,100
+10,800
+116% +$93.9K ﹤0.01% 3964
2023
Q1 		$81.2K Sell
9,300
-4,700
-34% -$45.5K ﹤0.01% 4479
2022
Q4 		$142K Sell
14,000
-16,600
-54% -$162K ﹤0.01% 4141
2022
Q3 		$225K Buy
30,600
+17,200
+128% +$145K ﹤0.01% 4020
2022
Q2 		$101K Sell
13,400
-55,900
-81% -$461K ﹤0.01% 4981
2022
Q1 		$430K Buy
69,300
+13,200
+24% +$58.5K ﹤0.01% 3986
2021
Q4 		$249K Sell
56,100
-28,200
-33% -$109K ﹤0.01% 4870
2021
Q3 		$298K Sell
84,300
-187,600
-69% -$627K ﹤0.01% 4750
2021
Q2 		$924K Sell
271,900
-97,100
-26% -$234K ﹤0.01% 3510
2021
Q1 		$594K Buy
369,000
+150,300
+69% +$218K ﹤0.01% 3824
2020
Q4 		$238K Buy
218,700
+143,100
+189% +$171K ﹤0.01% 3926
2020
Q3 		$87K Sell
75,600
-139,100
-65% -$158K ﹤0.01% 4284
2020
Q2 		$217K Buy
214,700
+1,300
+0.6% +$1.14K ﹤0.01% 3311
2020
Q1 		$147K Buy
213,400
+119,300
+127% +$94.8K ﹤0.01% 2987
2019
Q4 		$92K Sell
94,100
-12,100
-11% -$8.13K ﹤0.01% 3687
2019
Q3 		$75K Sell
106,200
-22,600
-18% -$14K ﹤0.01% 3749
2019
Q2 		$111K Buy
128,800
+102,200
+384% +$163K ﹤0.01% 3277
2019
Q1 		$51K Buy
26,600
+25,100
+1,673% +$35.3K ﹤0.01% 3555
2018
Q4 		$1K Sell
1,500
-1,900
-56% -$2.09K ﹤0.01% 4727
2018
Q3 		$4K Buy
+3,400
New +$6.03K ﹤0.01% 4905
2018
Q2 		– Sell
-13,300
Closed -$66K – 5254
2018
Q1 		$66K Buy
13,300
+5,900
+80% +$34.8K ﹤0.01% 3509
2017
Q4 		$45K Buy
7,400
+6,400
+640% +$39K ﹤0.01% 3784
2017
Q3 		$8K Sell
1,000
-300
-23% -$2.6K ﹤0.01% 4352
2017
Q2 		$11K Buy
+1,300
New +$9.95K ﹤0.01% 4177
2017
Q1 		– Sell
-100
Closed -$1K – 4778
2016
Q4 		$1K Hold
100
– – ﹤0.01% 4307
2016
Q3 		$1K Buy
+100
New +$528 ﹤0.01% 4431
2016
Q2 		– Sell
-45,000
Closed -$148K – 4743
2016
Q1 		$148K Buy
45,000
+10,400
+30% +$32.8K ﹤0.01% 2534
2015
Q4 		$103K Buy
34,600
+10,000
+41% +$30.9K ﹤0.01% 2953
2015
Q3 		$73K Hold
24,600
– – ﹤0.01% 3283
2015
Q2 		$86K Buy
24,600
+14,600
+146% +$58.1K ﹤0.01% 3183
2015
Q1 		$42K Sell
10,000
-100
-1% -$381 ﹤0.01% 3460
2014
Q4 		$38K Buy
10,100
+5,100
+102% +$18.8K ﹤0.01% 3550
2014
Q3 		$17K Hold
5,000
– – ﹤0.01% 4202
2014
Q2 		$14K Hold
5,000
– – ﹤0.01% 4365
2014
Q1 		$14K Buy
5,000
+3,500
+233% +$11.6K ﹤0.01% 4442
2013
Q4 		$6K Buy
1,500
+1,100
+275% +$2.71K ﹤0.01% 4793
2013
Q3 		$1K Buy
+400
New +$856 ﹤0.01% 5030

Other funds holding HDSN

HP
Hartree Partners New York $467M AUM 66.71% 1-Year Est. Return
WCM
Westerly Capital Management San Francisco, California $368M AUM 42.67% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
NSCM
New South Capital Management Memphis, Tennessee $2.09B AUM 33.67% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Group One Trading's HDSN Position: Q3 2025 in Review

Group One Trading sold out of Hudson Technologies (HDSN) in Q3 2025, closing a stake of 5,734 shares — an estimated $53.8K sold.

Group One Trading first reported a position in HDSN in Q3 2013 and held it in 24 quarters. The position peaked at $325K in Q3 2021. 170 funds tracked by Wall St. Rank hold HDSN as of Q3 2025.

  • Group One Trading reported no remaining Hudson Technologies position as of Q3 2025 after selling out during the quarter.
  • Group One Trading sold 5,734 Hudson Technologies shares in Q3 2025, an estimated $53.8K.
  • Group One Trading first reported a position in Hudson Technologies in Q3 2013 and held it in 24 quarters.
  • Group One Trading's Hudson Technologies position peaked at $325K in Q3 2021.
  • 170 funds tracked by Wall St. Rank held Hudson Technologies as of Q3 2025.

Based on Group One Trading's 13F filing for Q3 2025, filed 12 Nov 2025.