Group One Trading’s Mercury Insurance MCY Stock Holding History

Group One Trading’s Portfolio MCY Stock Details MCY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$663K	Buy	+6,220	New	+$612K	﹤0.01%	3234
2026 Q1	–	Sell	-36,156	Closed	-$3.23M	–	8280
2025 Q4	$3.4M	Buy	36,156 +30,692	+562%	+$2.66M	0.01%	1825
2025 Q3	$463K	Sell	5,464 -26,925	-83%	-$1.99M	﹤0.01%	3790
2025 Q2	$2.18M	Buy	+32,389	New	+$1.93M	﹤0.01%	2057
2021 Q3	–	Sell	-500	Closed	-$29.9K	–	8522
2021 Q2	$32K	Sell	500 -600	-55%	-$38K	﹤0.01%	6917
2021 Q1	$67K	Buy	1,100 +600	+120%	+$34.3K	﹤0.01%	6005
2020 Q4	$26K	Buy	+500	New	+$22.4K	﹤0.01%	5374

Other funds holding MCY

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

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

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

Group One Trading opened a new position in Mercury Insurance (MCY) in Q2 2026: 6,220 shares worth $663K. The stake represents ﹤0.01% of the portfolio and ranks #3234 among its holdings. This is a return to the name: Group One Trading previously reported a position in MCY as recently as Q4 2025.

Group One Trading first reported a position in MCY in Q4 2020 and has held it in 7 quarters since. The position peaked at $3.4M in Q4 2025. 349 funds tracked by Wall St. Rank hold MCY as of Q2 2026.

Group One Trading held 6,220 shares of Mercury Insurance worth $663K as of Q2 2026.
Mercury Insurance was a new Group One Trading position in Q2 2026.
Mercury Insurance made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #3234 holding.
Group One Trading first reported a position in Mercury Insurance in Q4 2020 and has held it in 7 quarters since.
Group One Trading's Mercury Insurance position peaked at $3.4M in Q4 2025.
349 funds tracked by Wall St. Rank held Mercury Insurance as of Q2 2026.

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