Group One Trading
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Group One Trading’s Amtech Systems ASYS Stock Holding History

Group One Trading’s Portfolio ASYS Stock Details ASYS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$96.2K Buy
4,170
+859
+26% +$16.3K ﹤0.01% 4895
2026
Q1 		$38.7K Sell
3,311
-4,238
-56% -$57.1K ﹤0.01% 5459
2025
Q4 		$94.7K Buy
7,549
+5,525
+273% +$49.8K ﹤0.01% 5052
2025
Q3 		$18.7K Buy
+2,024
New +$12.4K ﹤0.01% 6740
2024
Q2 		– Sell
-1,052
Closed -$5.69K – 6681
2024
Q1 		$5.69K Sell
1,052
-1,000
-49% -$4.5K ﹤0.01% 6129
2023
Q4 		$8.62K Buy
+2,052
New +$13.9K ﹤0.01% 6279
2021
Q4 		– Sell
-2,204
Closed -$25.4K – 8166
2021
Q3 		$25K Buy
+2,204
New +$22.6K ﹤0.01% 7034
2021
Q2 		– Sell
-669
Closed -$6.86K – 8114
2021
Q1 		$8K Buy
+669
New +$6.19K ﹤0.01% 7105
2020
Q4 		– Sell
-1,500
Closed -$7K – 6464
2020
Q3 		$7K Buy
+1,500
New +$7.73K ﹤0.01% 5526
2020
Q1 		– Sell
-300
Closed -$1.69K – 5226
2019
Q4 		$2K Buy
+300
New +$1.74K ﹤0.01% 4879
2018
Q4 		– Sell
-260
Closed -$1.27K – 4852
2018
Q3 		$1K Sell
260
-830
-76% -$4.55K ﹤0.01% 5061
2018
Q2 		$7K Sell
1,090
-3,500
-76% -$27.3K ﹤0.01% 4707
2018
Q1 		$34K Buy
4,590
+4,290
+1,430% +$38.6K ﹤0.01% 3836
2017
Q4 		$3K Sell
300
-300
-50% -$3.67K ﹤0.01% 4639
2017
Q3 		$7K Buy
+600
New +$6.04K ﹤0.01% 4380
2014
Q4 		– Sell
-368
Closed -$4K – 4869
2014
Q3 		$4K Buy
+368
New +$3.87K ﹤0.01% 4770
2013
Q3 		– Sell
-519
Closed -$3K – 5185
2013
Q2 		$3K Buy
+519
New +$2.33K ﹤0.01% 4812

Other funds holding ASYS

ACM
AIGH Capital Management Baltimore, Maryland $1.59B AUM 855.46% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AIC
AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

Group One Trading increased its Amtech Systems (ASYS) stake by 26% in Q2 2026, buying an estimated $16.3K and bringing the position to 4,170 shares worth $96.2K. The position accounts for ﹤0.01% of the portfolio, ranked #4895.

Group One Trading first reported a position in ASYS in Q2 2013 and has held it in 17 quarters since. 112 funds tracked by Wall St. Rank hold ASYS as of Q2 2026.

  • Group One Trading held 4,170 shares of Amtech Systems worth $96.2K as of Q2 2026.
  • Group One Trading bought 859 Amtech Systems shares in Q2 2026, an estimated $16.3K.
  • Amtech Systems made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #4895 holding.
  • Group One Trading first reported a position in Amtech Systems in Q2 2013 and has held it in 17 quarters since.
  • 112 funds tracked by Wall St. Rank held Amtech Systems as of Q2 2026.

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