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923 hedge funds and large institutions have $25.7B invested in Ameren in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 372 increasing their positions, 233 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

105% more first-time investments, than exits

New positions opened: 125 | Existing positions closed: 61

60% more repeat investments, than reductions

Existing positions increased: 372 | Existing positions reduced: 233

17% more funds holding in top 10

Funds holding in top 10: 67 (+1)

11% more capital invested

Capital invested by funds: $23.2B → $25.7B (+$2.53B)

5% more funds holding

Funds holding: 879923 (+44)

1.07% less ownership

Funds ownership: 85.71%84.64% (-1.1%)

33% less call options, than puts

Call options by funds: $12.8M | Put options by funds: $19.1M

Holders
923
Holders Change
+44
Holders Change %
+5.01%
% of All Funds
11.37%
Holding in Top 10
7
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+16.67%
% of All Funds
0.09%
New
125
Increased
372
Reduced
233
Closed
61
Calls
$12.8M
Puts
$19.1M
Net Calls
-$6.28M
Net Calls Change
+$6.75M
Name Holding Trade Value Shares
Change
Change in
Stake
Rafferty Asset Management
276
Rafferty Asset Management
New York
$2.46M -$793K -7,416 -25%
MC
277
Machina Capital
France
$2.39M +$2.32M +21,723 New
AI
278
Atria Investments
North Carolina
$2.39M +$111K +1,041 +5%
M&T Bank
279
M&T Bank
New York
$2.38M -$114K -1,065 -5%
AC
280
AXQ Capital
New Jersey
$2.37M +$2.31M +21,565 New
TRSOTSOK
281
Teachers Retirement System of the State of Kentucky
Kentucky
$2.31M
GIBU
282
Gulf International Bank (UK)
United Kingdom
$2.29M +$682K +6,374 +44%
LIP
283
Lighthouse Investment Partners
Florida
$2.27M +$2.21M +20,664 New
Capital Fund Management (CFM)
284
Capital Fund Management (CFM)
France
$2.23M +$2.17M +20,285 New
BCI
285
Brinker Capital Investments
Pennsylvania
$2.22M -$74.3K -695 -3%
FHWM
286
Fox Hill Wealth Management
Massachusetts
$2.21M -$12.7K -119 -0.6%
Kovitz Investment Group Partners
287
Kovitz Investment Group Partners
Illinois
$2.21M -$48K -449 -2%
SFI
288
Siemens Fonds Invest
Germany
$2.21M
QC
289
Quadrature Capital
United Kingdom
$2.2M +$2.14M +20,025 New
Jane Street
290
Jane Street
New York
$2.2M +$629K +5,880 +42%
AAP
291
Arax Advisory Partners
Colorado
$2.13M -$2.41M -22,574 -54%
IMCOOI
292
Investment Management Corp of Ontario (IMCO)
Canada
$2.13M +$107K +1,000 +5%
Janney Montgomery Scott
293
Janney Montgomery Scott
Pennsylvania
$2.1M +$205K +1,916 +11%
DIM
294
DC Investments Management
Virginia
$2.09M
HIS
295
Horizon Investment Services
Indiana
$2.08M -$21.9K -205 -1%
STA
296
Summit Trail Advisors
New York
$2.06M +$714K +6,679 +55%
DTL
297
Dynamic Technology Lab
Singapore
$2.03M +$1.97M +18,430 New
CIA
298
Concurrent Investment Advisors
Florida
$2.01M +$535K +5,000 +38%
BCA
299
Bay Colony Advisors
Massachusetts
$2M +$440K +4,114 +29%
MT
300
Midwest Trust
Kansas
$1.92M +$246K +2,302 +15%