Simplex Trading’s ATS Corp ATS Stock Holding History

Simplex Trading’s Portfolio ATS Stock Details ATS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$24.3K	Buy	+846	New	+$26K	﹤0.01%	6934
2025 Q4	–	Sell	-67	Closed	-$1K	–	8508
2025 Q3	$1K	Sell	67 -3,563	-98%	-$103K	﹤0.01%	8765
2025 Q2	$115K	Buy	+3,630	New	+$99.4K	﹤0.01%	5095
2025 Q1	–	Sell	-8,065	Closed	-$225K	–	8486
2024 Q4	$245K	Buy	+8,065	New	+$245K	﹤0.01%	4298
2024 Q3	–	Sell	-88	Closed	-$2K	–	8432
2024 Q2	$2K	Buy	88 +2	+2%	+$65	﹤0.01%	8218
2024 Q1	$2K	Buy	+86	New	+$3.41K	﹤0.01%	8355

Other funds holding ATS

MCM

Mason Capital Management New York $607M AUM 1.77% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

BGC

Beutel, Goodman & Co Toronto, Ontario, Canada $13.6B AUM 17.82% 1-Year Est. Return

TCAM

Turtle Creek Asset Management Toronto, Ontario, Canada $2.56B AUM 1.05% 1-Year Est. Return

Bank of Montreal Toronto, Ontario, Canada $304B AUM 35.64% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

FFH

Fairfax Financial Holdings Toronto, Ontario, Canada $2.64B AUM 24.46% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Jupiter Topco New York $245B AUM

Simplex Trading's ATS Position: Q2 2026 in Review

Simplex Trading opened a new position in ATS Corp (ATS) in Q2 2026: 846 shares worth $24.3K. The stake represents ﹤0.01% of the portfolio and ranks #6934 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ATS as recently as Q3 2025.

Simplex Trading first reported a position in ATS in Q1 2024 and has held it in 6 quarters since. The position peaked at $245K in Q4 2024. 141 funds tracked by Wall St. Rank hold ATS as of Q2 2026.

Simplex Trading held 846 shares of ATS Corp worth $24.3K as of Q2 2026.
ATS Corp was a new Simplex Trading position in Q2 2026.
ATS Corp made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #6934 holding.
Simplex Trading first reported a position in ATS Corp in Q1 2024 and has held it in 6 quarters since.
Simplex Trading's ATS Corp position peaked at $245K in Q4 2024.
141 funds tracked by Wall St. Rank held ATS Corp as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.