PEAK6’s CoStar Group CSGP Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$726K Buy
18,000
+7,800
+76% +$406K ﹤0.01% 1839
2025
Q4
$686K Sell
10,200
-15,500
-60% -$1.1M ﹤0.01% 1954
2025
Q3
$2.17M Sell
25,700
-52,600
-67% -$4.65M ﹤0.01% 1456
2025
Q2
$6.3M Buy
+78,300
New +$6.1M 0.01% 841

Other funds holding CSGP

PEAK6's CSGP Position: Q1 2026 in Review

PEAK6 opened a new position in CoStar Group (CSGP) in Q1 2026: 26,037 shares worth $1.05M. The stake represents ﹤0.01% of the portfolio and ranks #1678 among its holdings. This is a return to the name: PEAK6 previously reported a position in CSGP as recently as Q1 2025.

PEAK6 first reported a position in CSGP in Q1 2025 and has held it in 2 quarters since. The position peaked at $8.05M in Q1 2025. 792 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

  • PEAK6 held 26,037 shares of CoStar Group worth $1.05M as of Q1 2026.
  • CoStar Group was a new PEAK6 position in Q1 2026.
  • CoStar Group made up ﹤0.01% of PEAK6's portfolio in Q1 2026, its #1678 holding.
  • PEAK6 first reported a position in CoStar Group in Q1 2025 and has held it in 2 quarters since.
  • PEAK6's CoStar Group position peaked at $8.05M in Q1 2025.
  • 792 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.