13FBOX
COSTAR GROUP INC · 13F Institutional Holdings
Options Calculator Rankings

COSTAR GROUP INC

CSGP
Institutions
766
Combined AUM (Q2 2026)
$11.83B
Combined Shares (Q2 2026)
417.0M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+79.4M
418 · 120 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-73.8M
405 · 145 Exit · ≈
⚖️ Net
+5.6M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$11.83B
Institutions
766
New Buys
120
Adds
298
Reduces
260
Exits
145
Unchanged
88
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
VANGUARD PORTFOLIO MANAGEMENT LLC
0.05%0.08%#155$1.07B37.9M$1.54B38.2M-319,289-0.84%Reduce
BlackRock, Inc.
0.01%0.02%#298$957.6M33.8M$1.36B33.8M+5,785+0.02%Add
VANGUARD CAPITAL MANAGEMENT LLC
0.02%0.03%#274$755.7M26.7M$1.11B27.4M-740,111-2.70%Reduce
BAMCO INC /NY/
0.92%1.99%#16$612.5M21.6M$658.1M16.3M+5.3M+32.56%Add
STATE STREET CORP
0.02%0.03%#277$521.4M18.4M$752.4M18.7M-240,099-1.29%Reduce
Capital International Investors
0.1%0.15%#109$471.3M16.6M$625.8M15.5M+1.1M+7.28%Add
BAILLIE GIFFORD & CO
0.34%0.53%#48$372.5M13.2M$549.1M13.6M-456,757-3.36%Reduce
GEODE CAPITAL MANAGEMENT, LLC
0.02%0.03%#248$343.3M12.2M$500.4M12.4M-282,183-2.27%Reduce
AKRE CAPITAL MANAGEMENT LLC
6.47%7.57%#1$331.3M11.7M$417.4M10.3M+1.4M+13.06%Add
POLEN CAPITAL MANAGEMENT LLC
2.14%3.51%#8$248.1M8.8M$507.1M12.6M-3.8M-30.32%Reduce
AQR CAPITAL MANAGEMENT LLC
0.08%0.02%#124$239.2M8.4M$50.9M1.3M+7.2M+568.84%Add
Jupiter Topco LLC
0.09%#117$221.8M7.8M$00+7.8MNew Buy
Invesco Ltd.
0.02%0.04%#280$192.8M6.8M$287.9M7.1M-328,625-4.60%Reduce
EdgePoint Investment Group Inc.
1.27%#10$168.5M6.0M$00+6.0MNew Buy
NORGES BANK
0.02%0.06%#266$168.5M5.9M$417.5M5.3M+680,426+12.91%Add
MORGAN STANLEY
0.01%0.04%#387$155.4M5.5M$720.8M8.5M-3.1M-35.79%Reduce
Meritage Group LP
5.89%5.07%#3$152.8M5.4M$134.3M3.3M+2.1M+62.04%Add
JPMORGAN CHASE & CO
0.01%<0.01%#391$145.4M4.9M$75.6M1.8M+3.1M+167.09%Add
GOLDMAN SACHS GROUP INC
0.01%0.04%#318$145.3M5.1M$373.3M9.3M-4.1M-44.57%Reduce
FEDERATED HERMES, INC.
0.18%0.09%#71$125.4M4.4M$52.4M1.3M+3.1M+241.05%Add
Capital Research Global Investors
0.02%0.03%#271$118.8M4.2M$176.4M4.4M-179,973-4.11%Reduce
PRINCIPAL FINANCIAL GROUP INC
0.05%0.38%#148$107.4M3.8M$713.9M17.7M-13.9M-78.58%Reduce
NORTHERN TRUST CORP
0.01%0.02%#337$97.7M3.4M$138.5M3.4M+16,608+0.48%Add
Qube Research & Technologies Ltd
0.08%#122$91.1M3.2M$00+3.2MNew Buy
BNP Paribas Asset Management Holding S.A.
0.09%#120$88.9M3.1M$00+3.1MNew Buy
Amundi
0.02%0.04%#224$88.8M3.1M$132.3M3.3M-144,791-4.41%Reduce
VAN ECK ASSOCIATES CORP
0.05%0.11%#146$87.2M3.1M$140.3M3.5M-399,823-11.49%Reduce
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
0.03%0.01%#198$84.5M3.0M$39.2M956,096+2.0M+212.10%Add
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
0.01%0.02%#345$83.9M3.0M$115.9M2.9M+88,180+3.07%Add
BANK OF AMERICA CORP /DE/
<0.01%0.01%#454$77.5M2.7M$143.9M3.6M-833,005-23.35%Reduce
Spyglass Capital Management LLC
4.13%3.17%#5$76.3M2.7M$44.8M1.1M+1.6M+142.50%Add
JANE STREET GROUP, LLC
0.01%0.01%#431$73.2M2.6M$52.9M1.3M+1.3M+96.84%Add
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.01%0.02%#316$71.4M2.5M$97.9M2.4M+95,878+3.95%Add
CANADA PENSION PLAN INVESTMENT BOARD
0.04%0.05%#171$70.3M2.5M$81.1M2.0M+470,678+23.41%Add
FMR LLC
<0.01%0.01%#513$70.1M2.5M$114.2M2.8M-356,622-12.59%Reduce
UBS Group AG
0.01%0.01%#380$68.1M2.4M$53.8M1.3M+1.1M+80.18%Add
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
0.1%0.16%#104$68.1M2.4M$94.1M2.3M+69,238+2.97%Add
Ensign Peak Advisors, Inc
0.11%0.21%#97$67.2M2.4M$110.3M2.7M-360,882-13.20%Reduce
VANGUARD FIDUCIARY TRUST CO
0.01%0.02%#294$65.1M2.3M$96.5M2.4M-93,087-3.89%Reduce
DEUTSCHE BANK AG\
0.02%0.03%#240$64.1M2.3M$76.6M1.9M+364,877+19.21%Add
BANK OF MONTREAL /CAN/
0.02%0.04%#229$63.4M2.2M$100.4M2.5M-248,274-9.98%Reduce
BECK MACK & OLIVER LLC
1.15%#11$59.0M2.1M$00+2.1MNew Buy
Bank of New York Mellon Corp
0.01%0.02%#364$56.8M2.0M$96.8M2.4M-395,285-16.47%Reduce
Erste Asset Management GmbH
0.39%0.17%#42$49.8M1.7M$18.4M450,000+1.3M+277.78%Add
THOMPSON SIEGEL & WALMSLEY LLC
0.89%0.44%#18$49.4M1.7M$24.8M615,251+1.1M+183.47%Add
Legal & General Group Plc
0.01%0.03%#359$47.7M1.7M$122.0M3.0M-1.3M-44.38%Reduce
BNP PARIBAS FINANCIAL MARKETS
0.02%0.02%#227$44.7M1.6M$31.0M768,716+809,606+105.32%Add
HSBC HOLDINGS PLC
0.02%0.03%#241$44.6M1.6M$55.1M1.4M+205,868+15.08%Add
Fiera Capital Corp
0.16%0.07%#74$44.4M1.6M$19.4M481,711+1.1M+225.27%Add
Squarepoint Ops LLC
0.05%0.05%#153$44.3M1.6M$45.2M1.1M+445,842+39.80%Add

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow