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Quest Diagnostics

1,062 hedge funds and large institutions have $20.1B invested in Quest Diagnostics in 2026 Q1 according to their latest regulatory filings, with 121 funds opening new positions, 349 increasing their positions, 381 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

139% more call options, than puts

Call options by funds: $96.9M | Put options by funds: $40.5M

100% more funds holding in top 10

Funds holding in top 10: 24 (+2)

39% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 87

9% more capital invested

Capital invested by funds: $18.4B → $20.1B (+$1.67B)

1% more funds holding

Funds holding: 1,0481,062 (+14)

8% less repeat investments, than reductions

Existing positions increased: 349 | Existing positions reduced: 381

2.22% less ownership

Funds ownership: 95.55%93.33% (-2.2%)

Holders
1,062
Holders Change
+14
Holders Change %
+1.34%
% of All Funds
13.08%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
121
Increased
349
Reduced
381
Closed
87
Calls
$96.9M
Puts
$40.5M
Net Calls
+$56.4M
Net Calls Change
+$39M
Name Holding Trade Value Shares
Change
Change in
Stake
SMBT
826
Southern Michigan Bank & Trust
Michigan
$134K +$133K +686 New
PWPS
827
Pinnacle Wealth Planning Services
Ohio
$133K +$9.91K +51 +8%
CG
828
Curat Global
New Hampshire
$118K
CCMW
829
Cypress Capital Management (Wyoming)
Wyoming
$118K
Simplex Trading
830
Simplex Trading
Illinois
$117K -$847K -4,362 -88%
HWA
831
Heritage Wealth Advisors
Virginia
$116K
CSP
832
Cary Street Partners
Virginia
$114K +$3.89K +20 +4%
PGAM
833
Princeton Global Asset Management
New Jersey
$113K +$777 +4 +0.7%
CA
834
CoreCap Advisors
Michigan
$111K
WSFS
835
Wilmington Savings Fund Society
Delaware
$108K
Walleye Trading
836
Walleye Trading
New York
$108K -$406K -2,092 -79%
OP
837
Oslo Pensjonsforsikring
$107K +$106K +547 New
KFA
838
Kelleher Financial Advisors
New York
$106K
WB
839
Webster Bank
Connecticut
$102K
LFG
840
Larson Financial Group
Missouri
$101K +$11.3K +58 +13%
Los Angeles Capital Management
841
Los Angeles Capital Management
California
$99.4K -$7.77K -40 -7%
NA
842
Networth Advisors
Pennsylvania
$96.2K
MO
843
McMillan Office
Michigan
$95.2K
PNC
844
Park National Corp
Ohio
$93.9K +$93.1K +479 New
HFM
845
Harvest Fund Management
China
$91K +$70.1K +361 +354%
LI
846
LRI Investments
Florida
$90.9K +$69K +355 +326%
Federated Hermes
847
Federated Hermes
Pennsylvania
$90.3K -$2.72K -14 -3%
OSNBOA
848
Old Second National Bank of Aurora
Illinois
$88.2K
RFP
849
Root Financial Partners
California
$84.7K +$6.61K +34 +9%
SFG
850
Strive Financial Group
Indiana
$82K -$16.7K -86 -17%