HRT Financial’s Quantum-Si Incorporated QSI Stock Holding History

HRT Financial’s Portfolio QSI Stock Details QSI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$82K	Buy	+93,647	New	+$89.2K	﹤0.01%	3666
2026 Q1	–	Sell	-104,292	Closed	-$114K	–	4559
2025 Q4	$114K	Buy	+104,292	New	+$170K	﹤0.01%	2763
2024 Q1	–	Sell	-45,313	Closed	-$91K	–	2945
2023 Q4	$91K	Buy	+45,313	New	+$69.1K	﹤0.01%	1902
2022 Q3	–	Sell	-378,494	Closed	-$878K	–	3361
2022 Q2	$878K	Buy	378,494 +315,437	+500%	+$1.21M	0.01%	1043
2022 Q1	$295K	Sell	63,057 -200,257	-76%	-$976K	﹤0.01%	2246
2021 Q4	$2.07M	Buy	+263,314	New	+$1.98M	0.01%	635
2021 Q3	–	Sell	-373,868	Closed	-$4.58M	–	3672
2021 Q2	$4.58M	Buy	373,868 +313,957	+524%	+$3.29M	0.04%	328
2021 Q1	$714K	Buy	+59,911	New	+$724K	0.01%	1515

Other funds holding QSI

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

NAMA

Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

HRT Financial's QSI Position: Q2 2026 in Review

HRT Financial opened a new position in Quantum-Si Incorporated (QSI) in Q2 2026: 93,647 shares worth $82K. The stake represents ﹤0.01% of the portfolio and ranks #3666 among its holdings. This is a return to the name: HRT Financial previously reported a position in QSI as recently as Q4 2025.

HRT Financial first reported a position in QSI in Q1 2021 and has held it in 8 quarters since. The position peaked at $4.58M in Q2 2021. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

HRT Financial held 93,647 shares of Quantum-Si Incorporated worth $82K as of Q2 2026.
Quantum-Si Incorporated was a new HRT Financial position in Q2 2026.
Quantum-Si Incorporated made up ﹤0.01% of HRT Financial's portfolio in Q2 2026, its #3666 holding.
HRT Financial first reported a position in Quantum-Si Incorporated in Q1 2021 and has held it in 8 quarters since.
HRT Financial's Quantum-Si Incorporated position peaked at $4.58M in Q2 2021.
141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on HRT Financial's 13F filing for Q2 2026, filed 14 Aug 2026.