394 hedge funds and large institutions have $5.23B invested in Ameren in 2013 Q3 according to their latest regulatory filings, with 54 funds opening new positions, 129 increasing their positions, 151 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more capital invested

Capital invested by funds: $ → $

more ownership

Funds ownership:

15% less repeat investments, than reductions

Existing positions increased: 129 | Existing positions reduced: 151

28% less call options, than puts

Call options by funds: $6.06M | Put options by funds: $8.4M

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
394
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$6.06M
Puts
$8.4M
Net Calls
Net Calls Change

Top Buyers

1 +$94.2M
2 +$92.1M
3 +$65.5M
4
Neuberger Berman Group
Neuberger Berman Group
New York
+$65.2M
5
Citadel Advisors
Citadel Advisors
Florida
+$36.5M

Top Sellers

1 -$86.2M
2 -$46.1M
3 -$38M
4
Renaissance Technologies
Renaissance Technologies
New York
-$34.2M
5
LM
Luminus Management
Texas
-$34M
Name Holding Trade Value Shares
Change
Change in
Stake
326
$178K
327
$159K
328
$153K
329
$150K
330
$144K
331
$131K
332
$125K
333
$125K
334
$122K
335
$118K
336
$115K
337
$108K
338
$102K
339
$98K
340
$96K
341
$92K
342
$91K
343
$83K
344
$83K
345
$82K
346
$76K
347
$74K
348
$73K
349
$71K
350
$70K