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 		$11.4K Buy
+3,500
New +$10.2K ﹤0.01% 6316
2026
Q1 		– Sell
-100
Closed -$185 – 8788
2025
Q4 		$185 Sell
100
-300
-75% -$605 ﹤0.01% 7891
2025
Q3 		$916 Sell
400
-40,300
-99% -$99.2K ﹤0.01% 8069
2025
Q2 		$114K Sell
40,700
-300
-0.7% -$768 ﹤0.01% 4862
2025
Q1 		$83.6K Buy
41,000
+40,000
+4,000% +$107K ﹤0.01% 4735
2024
Q4 		$3K Buy
+1,000
New +$3.69K ﹤0.01% 6611
2024
Q1 		– Sell
-1,000
Closed -$4.46K – 7983
2023
Q4 		$4.46K Sell
1,000
-600
-38% -$2.66K ﹤0.01% 6559
2023
Q3 		$7.42K Buy
1,600
+1,100
+220% +$5.35K ﹤0.01% 6513
2023
Q2 		$2.42K Sell
500
-7,900
-94% -$32.7K ﹤0.01% 7026
2023
Q1 		$35.4K Buy
+8,400
New +$50K ﹤0.01% 5113
2022
Q2 		– Sell
-1,200
Closed -$3K – 8544
2022
Q1 		$3K Sell
1,200
-1,100
-48% -$2K ﹤0.01% 7657
2021
Q4 		$4K Sell
2,300
-1,300
-36% -$3.39K ﹤0.01% 7729
2021
Q3 		$10K Buy
3,600
+1,700
+89% +$6.06K ﹤0.01% 7512
2021
Q2 		$9K Buy
1,900
+1,600
+533% +$6.59K ﹤0.01% 7573
2021
Q1 		$2K Buy
+300
New +$1.52K ﹤0.01% 7407
2019
Q4 		– Sell
-15,300
Closed -$38K – 5642
2019
Q3 		$38K Sell
15,300
-33,600
-69% -$159K ﹤0.01% 4111
2019
Q2 		$336K Buy
48,900
+44,800
+1,093% +$569K ﹤0.01% 2494
2019
Q1 		$68K Sell
4,100
-5,900
-59% -$126K ﹤0.01% 3418
2018
Q4 		$180K Buy
10,000
+3,900
+64% +$95.8K ﹤0.01% 2764
2018
Q3 		$178K Buy
+6,100
New +$201K ﹤0.01% 3092

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.