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570 hedge funds and large institutions have $14.8B invested in ATI in 2025 Q4 according to their latest regulatory filings, with 145 funds opening new positions, 169 increasing their positions, 181 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed

303% more first-time investments, than exits

New positions opened: 145 | Existing positions closed: 36

85% more call options, than puts

Call options by funds: $154M | Put options by funds: $83.1M

41% more capital invested

Capital invested by funds: $10.5B → $14.8B (+$4.28B)

33% more funds holding in top 10

Funds holding in top 10: 912 (+3)

21% more funds holding

Funds holding: 470570 (+100)

1.14% more ownership

Funds ownership: 93.44%94.57% (+1.1%)

7% less repeat investments, than reductions

Existing positions increased: 169 | Existing positions reduced: 181

Holders
570
Holders Change
+100
Holders Change %
+21.28%
% of All Funds
6.93%
Holding in Top 10
12
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+33.33%
% of All Funds
0.15%
New
145
Increased
169
Reduced
181
Closed
36
Calls
$154M
Puts
$83.1M
Net Calls
+$70.4M
Net Calls Change
+$77.5M
Name Holding Trade Value Shares
Change
Change in
Stake
Tudor Investment Corp
576
Tudor Investment Corp
Connecticut
-$17.7M -181,797 Closed
BA
577
Bridgewater Associates
Connecticut
-$11.1M -136,458 Closed
KPM
578
Kinetic Partners Management
Florida
-$10.8M -132,800 Closed
BCP
579
Bayberry Capital Partners
New York
-$10.1M -124,100 Closed
DCM
580
Discovery Capital Management
Connecticut
-$8.55M -105,100 Closed
VanEck Associates
581
VanEck Associates
New York
-$4.14M -50,925 Closed
MF
582
Magnetar Financial
Illinois
-$3.71M -45,664 Closed
CCM
583
Cinctive Capital Management
New York
-$3.12M -38,328 Closed
BAMF
584
BI Asset Management Fondsmaeglerselskab
Denmark
-$2.84M -34,944 Closed
IMC Chicago
585
IMC Chicago
Illinois
-$2.19M -22,509 Closed
FFB
586
First Financial Bankshares
Texas
-$1.59M -19,534 Closed
CP
587
CenterBook Partners
Connecticut
-$1.37M -16,858 Closed
YCM
588
Yaupon Capital Management
New York
-$1.29M -15,844 Closed
F1I
589
Fund 1 Investments
Puerto Rico
-$1.04M -12,813 Closed
FF
590
Friedenthal Financial
New Jersey
-$993K -12,204 Closed
YIH
591
Y-Intercept (HK)
Hong Kong
-$833K -10,241 Closed
OTL
592
Oak Thistle LLC
New York
-$596K -7,325 Closed
PCM
593
Prelude Capital Management
New York
-$219K -2,689 Closed
Optiver Holding
594
Optiver Holding
Netherlands
-$70.3K -864 Closed
AAS
595
Ameritas Advisory Services
Nebraska
-$50.2K -617 Closed
QL
596
Quarry LP
New York
-$38.4K -472 Closed
CI Investments Inc
597
CI Investments Inc
Ontario, Canada
-$28K -348 Closed
WANY
598
Wealthspire Advisors (New York)
New York
-$21.5K -264 Closed
PS
599
Principal Securities
Iowa
-$17.7K -217 Closed
CIAM
600
Caitong International Asset Management
Hong Kong
-$14.6K -179 Closed