398 hedge funds and large institutions have $5.46B invested in Ameren in 2013 Q4 according to their latest regulatory filings, with 41 funds opening new positions, 135 increasing their positions, 164 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
398
Holders Change
+4
Holders Change %
+1.02%
% of All Funds
11.56%
Holding in Top 10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
New
41
Increased
135
Reduced
164
Closed
36
Calls
$6.27M
Puts
$7.57M
Net Calls
-$1.29M
Net Calls Change
+$1.04M
Name Holding Trade Value Shares
Change
Shares
Change %
LIA
201
LS Investment Advisors
Michigan
$1.36M +$578K +15,974 +73%
ERSOT
202
Employees Retirement System of Texas
Texas
$1.34M
GMIM
203
General Motors Investment Management
New York
$1.31M +$80.3K +2,221 +7%
GXMC
204
Global X Management Company
New York
$1.22M +$210K +5,811 +21%
Zurich Cantonal Bank
205
Zurich Cantonal Bank
Switzerland
$1.19M +$771K +21,335 +184%
MA
206
MUFG Americas
New York
$1.18M -$1.05M -28,935 -47%
RFC
207
Regions Financial Corp
Alabama
$1.18M +$1.99K +55 +0.2%
BP
208
Banyan Partners
Florida
$1.14M +$100K +2,773 +10%
PMAM
209
Picton Mahoney Asset Management
Ontario, Canada
$1.13M +$246K +6,800 +28%
V
210
Veritable
Delaware
$1.12M -$55.3K -1,530 -5%
Janus Henderson Group
211
Janus Henderson Group
United Kingdom
$1.06M
Jane Street
212
Jane Street
New York
$1.04M -$95.3K -2,634 -8%
Asset Management One
213
Asset Management One
Japan
$1.03M -$4.72K -131 -0.5%
CIBC Asset Management
214
CIBC Asset Management
Ontario, Canada
$1.03M -$12.1K -336 -1%
AssetMark Inc
215
AssetMark Inc
California
$1.03M -$46K -1,272 -4%
ST
216
Spot Trading
Illinois
$1.01M +$1.01M +27,825 New
CAM
217
Capstone Asset Management
Texas
$1M -$681K -18,835 -40%
SB
218
Suntrust Banks
Georgia
$989K +$19.6K +542 +2%
NC
219
Northpointe Capital
Michigan
$987K -$23.1K -640 -2%
SMDAM
220
Sumitomo Mitsui DS Asset Management
Japan
$983K -$88.5K -2,449 -8%
BSA
221
Braun Stacey Associates
New York
$955K +$74.7K +2,065 +8%
Cambridge Investment Research Advisors
222
Cambridge Investment Research Advisors
Iowa
$932K +$16.9K +468 +2%
RIL
223
Rothschild Investment LLC
Illinois
$928K
BA
224
BlackRock Advisors
Delaware
$924K -$21.7K -600 -2%
SCM
225
Shelton Capital Management
Colorado
$893K