Citadel Advisors
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Citadel Advisors’s CoStar Group CSGP Stock Holding History

Citadel Advisors’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 		$5.79M Buy
204,400
+93,800
+85% +$3.23M ﹤0.01% 4473
2026
Q1 		$4.46M Buy
110,600
+35,862
+48% +$1.87M ﹤0.01% 4533
2025
Q4 		$5.03M Buy
74,738
+33,700
+82% +$2.39M ﹤0.01% 4281
2025
Q3 		$3.46M Sell
41,038
-918
-2% -$81.1K ﹤0.01% 5036
2025
Q2 		$3.37M Sell
41,956
-89,476
-68% -$6.97M ﹤0.01% 4777
2025
Q1 		$10.4M Sell
131,432
-178,468
-58% -$13.6M ﹤0.01% 2796
2024
Q4 		$22.2M Buy
309,900
+200,600
+184% +$15.1M ﹤0.01% 2059
2024
Q3 		$8.25M Buy
109,300
+51,900
+90% +$3.94M ﹤0.01% 3207
2024
Q2 		$4.26M Sell
57,400
-30,900
-35% -$2.62M ﹤0.01% 4002
2024
Q1 		$8.53M Buy
88,300
+65,800
+292% +$5.66M ﹤0.01% 3140
2023
Q4 		$1.97M Sell
22,500
-34,900
-61% -$2.82M ﹤0.01% 5384
2023
Q3 		$4.41M Sell
57,400
-4,500
-7% -$373K ﹤0.01% 3870
2023
Q2 		$5.51M Buy
61,900
+13,900
+29% +$1.07M ﹤0.01% 3505
2023
Q1 		$3.3M Sell
48,000
-7,500
-14% -$553K ﹤0.01% 4485
2022
Q4 		$4.29M Sell
55,500
-48,800
-47% -$3.81M ﹤0.01% 4117
2022
Q3 		$7.26M Buy
104,300
+800
+0.8% +$55.5K ﹤0.01% 3248
2022
Q2 		$6.25M Sell
103,500
-33,100
-24% -$2M ﹤0.01% 3399
2022
Q1 		$9.1M Buy
136,600
+1,100
+0.8% +$73K ﹤0.01% 3092
2021
Q4 		$10.7M Sell
135,500
-145,500
-52% -$12.2M ﹤0.01% 2965
2021
Q3 		$24.2M Sell
281,000
-61,100
-18% -$5.28M 0.01% 1799
2021
Q2 		$28.3M Buy
342,100
+63,100
+23% +$5.45M 0.01% 1679
2021
Q1 		$22.9M Buy
+279,000
New +$24.1M 0.01% 1792

Other funds holding CSGP

Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Geode Capital Management
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
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

Citadel Advisors's CSGP Position: Q2 2026 in Review

Citadel Advisors reduced its CoStar Group (CSGP) stake by 32% in Q2 2026, selling an estimated $11.9M and leaving 741,898 shares worth $21M. The position accounts for ﹤0.01% of the portfolio, ranked #2516.

Citadel Advisors first reported a position in CSGP in Q3 2013 and has held it in 49 quarters since. The position peaked at $193M in Q3 2022. 758 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Citadel Advisors held 741,898 shares of CoStar Group worth $21M as of Q2 2026.
  • Citadel Advisors sold 346,306 CoStar Group shares in Q2 2026, an estimated $11.9M.
  • CoStar Group made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #2516 holding.
  • Citadel Advisors first reported a position in CoStar Group in Q3 2013 and has held it in 49 quarters since.
  • Citadel Advisors's CoStar Group position peaked at $193M in Q3 2022.
  • 758 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.