XTX Topco’s CoStar Group CSGP Stock Holding History

XTX Topco’s Portfolio CSGP Stock Details CSGP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$7.93M	Buy	280,134 +78,817	+39%	+$2.71M	0.1%	190
2026 Q1	$8.12M	Buy	201,317 +197,842	+5,693%	+$10.3M	0.14%	100
2025 Q4	$234K	Sell	3,475 -15,936	-82%	-$1.13M	0.01%	2280
2025 Q3	$1.64M	Sell	19,411 -14,222	-42%	-$1.26M	0.09%	289
2025 Q2	$2.7M	Buy	+33,633	New	+$2.62M	0.11%	222
2025 Q1	–	Sell	-9,272	Closed	-$664K	–	2524
2024 Q4	$664K	Buy	+9,272	New	+$700K	0.05%	535
2024 Q3	–	Sell	-29,845	Closed	-$2.21M	–	2166
2024 Q2	$2.21M	Buy	+29,845	New	+$2.53M	0.19%	104
2023 Q3	–	Sell	-15,289	Closed	-$1.36M	–	1631
2023 Q2	$1.36M	Buy	15,289 +4,467	+41%	+$345K	0.24%	45
2023 Q1	$745K	Buy	+10,822	New	+$799K	0.16%	114
2022 Q4	–	Sell	-9,708	Closed	-$676K	–	1195
2022 Q3	$676K	Buy	9,708 +5,530	+132%	+$384K	0.17%	131
2022 Q2	$252K	Buy	+4,178	New	+$253K	0.1%	346
2022 Q1	–	Sell	-6,990	Closed	-$552K	–	718
2021 Q4	$552K	Buy	+6,990	New	+$587K	0.31%	59
2021 Q2	–	Sell	-9,760	Closed	-$802K	–	854
2021 Q1	$802K	Buy	+9,760	New	+$843K	0.39%	19

Other funds holding CSGP

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

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

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

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

ACM

AKRE Capital Management Middleburg, Virginia $5.12B AUM 19.08% 1-Year Est. Return

Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

XTX Topco's CSGP Position: Q2 2026 in Review

XTX Topco increased its CoStar Group (CSGP) stake by 39% in Q2 2026, buying an estimated $2.71M and bringing the position to 280,134 shares worth $7.93M. The position accounts for 0.1% of the portfolio, ranked #190.

XTX Topco first reported a position in CSGP in Q1 2021 and has held it in 13 quarters since. The position peaked at $8.12M in Q1 2026. 757 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

XTX Topco held 280,134 shares of CoStar Group worth $7.93M as of Q2 2026.
XTX Topco bought 78,817 CoStar Group shares in Q2 2026, an estimated $2.71M.
CoStar Group made up 0.1% of XTX Topco's portfolio in Q2 2026, its #190 holding.
XTX Topco first reported a position in CoStar Group in Q1 2021 and has held it in 13 quarters since.
XTX Topco's CoStar Group position peaked at $8.12M in Q1 2026.
757 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.