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Rossby Financial’s CoStar Group CSGP Stock Holding History

Rossby Financial’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 		$12.7K Sell
450
-53
-11% -$1.82K ﹤0.01% 1110
2026
Q1 		$19.9K Buy
503
+45
+10% +$2.34K ﹤0.01% 1011
2025
Q4 		$30.8K Sell
458
-45
-9% -$3.19K 0.01% 636
2025
Q3 		$42K Buy
503
+162
+48% +$14.3K 0.01% 565
2025
Q2 		$27.4K Buy
341
+259
+316% +$20.2K 0.01% 598
2025
Q1 		$6.79K Buy
+82
New +$6.24K ﹤0.01% 774

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

Rossby Financial's CSGP Position: Q2 2026 in Review

Rossby Financial reduced its CoStar Group (CSGP) stake by 11% in Q2 2026, selling an estimated $1.82K and leaving 450 shares worth $12.7K. The position accounts for ﹤0.01% of the portfolio, ranked #1110.

Rossby Financial first reported a position in CSGP in Q1 2025 and has held it in 6 quarters since. The position peaked at $42K in Q3 2025. 758 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Rossby Financial held 450 shares of CoStar Group worth $12.7K as of Q2 2026.
  • Rossby Financial sold 53 CoStar Group shares in Q2 2026, an estimated $1.82K.
  • CoStar Group made up ﹤0.01% of Rossby Financial's portfolio in Q2 2026, its #1110 holding.
  • Rossby Financial first reported a position in CoStar Group in Q1 2025 and has held it in 6 quarters since.
  • Rossby Financial's CoStar Group position peaked at $42K in Q3 2025.
  • 758 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.