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Walleye Trading LLC

Position in CSGP — Costar Group, Inc.

CIK 1388391 NEW YORK, NY

Position in CSGP

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$1,065,200
-$1,859,813 QoQ
Shares Held
37,613
-48.1% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#298
of 747 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSGP Over Time

Shares Held

Position Value (USD)

Derivatives in CSGP

reported options exposure · as of Jun 30, 2026
CallValue
$931,728
CallShares
32,900
PutValue
$31,152
PutShares
1,100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Real Estate Services

Real Estate · as of Jun 30, 2026

Walleye Trading LLC holds $7,045,527 across 4 Real Estate Services names. CSGP ranks #2 (15.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CSGP
Costar Group, Inc.
This page
37,613 $1,065,200

All Filings in CSGP

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $931,728 32,900
2026-06-30 $1,065,200 37,613
2026-06-30 $31,152 1,100
2026-03-31 $2,925,013 72,509
2026-03-31 $1,190,030 29,500
2026-03-31 $125,054 3,100
2025-12-31 $806,274 11,991
2025-12-31 $3,745,268 55,700
2025-12-31 $3,059,420 45,500
2025-09-30 $4,589,728 54,400
2025-09-30 $3,113,253 36,900
2025-09-30 $741,443 8,788
2025-06-30 $1,736,640 21,600
2025-06-30 $3,473,280 43,200
2025-03-31 $4,539,879 57,300
2025-03-31 $1,220,142 15,400
2024-12-31 $2,770,533 38,700
2024-12-31 $5,333,455 74,500
2024-09-30 $2,791,280 37,000
2024-09-30 $897,736 11,900
2024-06-30 $806,643 10,880
2024-06-30 $1,579,182 21,300
2024-06-30 $3,343,714 45,100
2024-03-31 $3,168,480 32,800
2024-03-31 $4,839,660 50,100
2023-12-31 $3,058,650 35,000
2023-12-31 $2,630,439 30,100
2023-12-31 $1,144,721 13,099
2023-09-30 $2,575,815 33,500
2023-09-30 $5,974,353 77,700
2023-06-30 $676,400 7,600
2023-06-30 $7,778,600 87,400
2023-03-31 $8,069,220 117,200
2023-03-31 $605,880 8,800
2022-12-31 $3,021,648 39,100
2022-12-31 $8,122,128 105,100
2022-09-30 $5,787,915 83,100
2022-09-30 $675,605 9,700
2022-06-30 $2,742,614 45,400
2022-06-30 $18,123 300
2022-03-31 $253,118 3,800
2022-03-31 $3,303,856 49,600
2021-12-31 $442,568 5,600
2021-12-31 $197,575 2,500
2021-12-31 $119,493 1,512
2021-06-30 $778,508 9,400
2021-06-30 $1,015,538 12,262
2021-06-30 $248,460 3,000
2021-03-31 $82,189 100
2021-03-31 $246,567 300