2,241 hedge funds and large institutions have $154B invested in Pfizer in 2017 Q4 according to their latest regulatory filings, with 282 funds opening new positions, 859 increasing their positions, 862 reducing their positions, and 59 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:

0% less repeat investments, than reductions

Existing positions increased: 859 | Existing positions reduced: 862

8% less funds holding in top 10

Funds holding in top 10: 177163 (-14)

27% less call options, than puts

Call options by funds: $937M | Put options by funds: $1.28B

Holders
2,241
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
163
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$937M
Puts
$1.28B
Net Calls
Net Calls Change

Top Buyers

1 +$438M
2 +$411M
3 +$308M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$287M
5
Bank of New York Mellon
Bank of New York Mellon
New York
+$271M

Top Sellers

1 -$590M
2 -$434M
3 -$261M
4
Citadel Advisors
Citadel Advisors
Florida
-$242M
5
Renaissance Technologies
Renaissance Technologies
New York
-$166M
Name Holding Trade Value Shares
Change
Change in
Stake
1676
$677K
1677
$674K
1678
$674K
1679
$673K
1680
$673K
1681
$670K
1682
$670K
1683
$669K
1684
$668K
1685
$668K
1686
$667K
1687
$666K
1688
$666K
1689
$665K
1690
$663K
1691
$663K
1692
$662K
1693
$662K
1694
$661K
1695
$661K
1696
$660K
1697
$659K
1698
$658K
1699
$658K
1700
$658K