Group One Trading
TUSK icon

Group One Trading’s Mammoth Energy Services TUSK Stock Holding History

Group One Trading’s Portfolio TUSK Stock Details TUSK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.52K Buy
+777
New +$2.27K ﹤0.01% 6976
2025
Q3 		– Sell
-8,164
Closed -$20.1K – 9186
2025
Q2 		$22.9K Buy
8,164
+2,375
+41% +$6.08K ﹤0.01% 6174
2025
Q1 		$11.8K Buy
+5,789
New +$15.4K ﹤0.01% 6148
2023
Q2 		– Sell
-7,184
Closed -$29.8K – 8235
2023
Q1 		$30.3K Sell
7,184
-77,503
-92% -$461K ﹤0.01% 5231
2022
Q4 		$733K Buy
84,687
+47,665
+129% +$271K ﹤0.01% 2696
2022
Q3 		$126K Buy
+37,022
New +$129K ﹤0.01% 4564
2021
Q4 		– Sell
-800
Closed -$2.09K – 8862
2021
Q3 		$2K Hold
800
– – ﹤0.01% 7969
2021
Q2 		$4K Sell
800
-3,100
-79% -$12.8K ﹤0.01% 7838
2021
Q1 		$21K Buy
3,900
+2,800
+255% +$14.2K ﹤0.01% 6747
2020
Q4 		$5K Buy
+1,100
New +$2.68K ﹤0.01% 6039
2020
Q2 		– Sell
-1,256
Closed -$1.46K – 6188
2020
Q1 		$1K Hold
1,256
– – ﹤0.01% 5112
2019
Q4 		$3K Sell
1,256
-13,300
-91% -$23.9K ﹤0.01% 4852
2019
Q3 		$36K Buy
14,556
+7,188
+98% +$34.1K ﹤0.01% 4136
2019
Q2 		$51K Buy
7,368
+6,431
+686% +$81.7K ﹤0.01% 3764
2019
Q1 		$16K Sell
937
-5,100
-84% -$109K ﹤0.01% 4104
2018
Q4 		$109K Buy
6,037
+2,323
+63% +$57.1K ﹤0.01% 3111
2018
Q3 		$108K Buy
+3,714
New +$122K ﹤0.01% 3481

Other funds holding TUSK

WC
Wexford Capital West Palm Beach, Florida $782M AUM 62.56% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PLC
Peapod Lane Capital Bedford Hills, New York $148M AUM 89.92% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
JHU
Johns Hopkins University Baltimore, Maryland $1.5B AUM 13.39% 1-Year Est. Return

Group One Trading's TUSK Position: Q2 2026 in Review

Group One Trading opened a new position in Mammoth Energy Services (TUSK) in Q2 2026: 777 shares worth $2.52K. The stake represents ﹤0.01% of the portfolio and ranks #6976 among its holdings. This is a return to the name: Group One Trading previously reported a position in TUSK as recently as Q2 2025.

Group One Trading first reported a position in TUSK in Q3 2018 and has held it in 17 quarters since. The position peaked at $733K in Q4 2022. 93 funds tracked by Wall St. Rank hold TUSK as of Q2 2026.

  • Group One Trading held 777 shares of Mammoth Energy Services worth $2.52K as of Q2 2026.
  • Mammoth Energy Services was a new Group One Trading position in Q2 2026.
  • Mammoth Energy Services made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #6976 holding.
  • Group One Trading first reported a position in Mammoth Energy Services in Q3 2018 and has held it in 17 quarters since.
  • Group One Trading's Mammoth Energy Services position peaked at $733K in Q4 2022.
  • 93 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.