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673 hedge funds and large institutions have $18.5B invested in ATI in 2026 Q1 according to their latest regulatory filings, with 164 funds opening new positions, 244 increasing their positions, 190 reducing their positions, and 51 closing their positions.

New
Increased
Maintained
Reduced
Closed

222% more first-time investments, than exits

New positions opened: 164 | Existing positions closed: 51

106% more call options, than puts

Call options by funds: $159M | Put options by funds: $77.3M

28% more repeat investments, than reductions

Existing positions increased: 244 | Existing positions reduced: 190

25% more capital invested

Capital invested by funds: $14.8B → $18.5B (+$3.75B)

18% more funds holding

Funds holding: 570673 (+103)

8% more funds holding in top 10

Funds holding in top 10: 1213 (+1)

1.25% less ownership

Funds ownership: 94.57%93.33% (-1.2%)

Holders
673
Holders Change
+103
Holders Change %
+18.07%
% of All Funds
8.29%
Holding in Top 10
13
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+8.33%
% of All Funds
0.16%
New
164
Increased
244
Reduced
190
Closed
51
Calls
$159M
Puts
$77.3M
Net Calls
+$82M
Net Calls Change
+$11.5M
Name Holding Trade Value Shares
Change
Change in
Stake
Twin Tree Management
276
Twin Tree Management
Texas
$2.18M +$2.09M +14,980 New
AC
277
Allstate Corporation
Illinois
$2.17M +$2.08M +14,951 New
RBI
278
Raiffeisen Bank International
Austria
$2.17M
CFM
279
Catalyst Funds Management
Australia
$2.14M +$1.76M +12,632 +602%
Commonwealth Equity Services
280
Commonwealth Equity Services
Massachusetts
$2.13M +$138K +992 +7%
Cambridge Investment Research Advisors
281
Cambridge Investment Research Advisors
Iowa
$2.13M +$50.1K +360 +3%
LHC
282
Little House Capital
Massachusetts
$2.1M +$2.01M +14,447 New
Kovitz Investment Group Partners
283
Kovitz Investment Group Partners
Illinois
$2.1M -$771K -5,534 -28%
PAM
284
PVG Asset Management
Colorado
$2.05M +$1.46M +10,475 New
AIM
285
Aigen Investment Management
New York
$2.05M +$1.96M +14,063 New
AI
286
Atria Investments
North Carolina
$2.03M -$410K -2,944 -17%
SOADOR
287
State of Alaska Department of Revenue
Alaska
$2M +$31.3K +225 +2%
Los Angeles Capital Management
288
Los Angeles Capital Management
California
$1.97M -$2.08M -14,962 -52%
FFP
289
FourThought Financial Partners
Florida
$1.93M -$79.1K -568 -4%
CIS
290
Capital International Sarl
California
$1.91M +$641K +4,600 +54%
Public Employees Retirement Association of Colorado
291
Public Employees Retirement Association of Colorado
Colorado
$1.89M
KPWS
292
Kestra Private Wealth Services
Texas
$1.89M +$454K +3,260 +33%
Nomura Holdings
293
Nomura Holdings
Japan
$1.88M -$890K -6,395 -33%
OWIM
294
Old West Investment Management
California
$1.83M
OTL
295
Oak Thistle LLC
New York
$1.76M +$1.68M +12,095 New
FIM
296
Fruth Investment Management
Texas
$1.75M -$97.5K -700 -5%
FMTC
297
Farmers & Merchants Trust Company
California
$1.72M
JFG
298
Jefferies Financial Group
New York
$1.68M -$1.64M -11,782 -50%
OSAM
299
O'Shaughnessy Asset Management
Connecticut
$1.64M +$329K +2,361 +26%
SLAM
300
Swiss Life Asset Management
$1.63M +$218K +1,566 +16%