The Analysis of MACKAY SHIELDS LLC's Holdings & P&L


Currently, MACKAY SHIELDS LLC holds 108 types of securities in its portfolio with a total value $3.0B. In the most recent quarter, they have increased their positions in N/A (+2.4M shares, valued at $122.6M), N/A (+38.1M shares, valued at $41.1M), N/A (+30.3M shares, valued at $38.1M); decreased their positions in N/A (-6.5M shares, valued at $109.9M), AEIS (-34.8M shares, valued at $95.0M), N/A (-13.9M shares, valued at $90.8M); initiated new positions in N/A (+2.4M shares, valued at $122.6M), N/A (+38.1M shares, valued at $41.1M), N/A (+30.3M shares, valued at $38.1M).


1M P&L
-582.6M-1.06%
3M P&L
+2.9B+5.72%
HY P&L
+9.3B+20.83%

P&L figures are estimated based on reported 13F stock holdings and market price changes. They are approximations and may not reflect actual fund performance. Stock split events may also affect the accuracy of these calculations, and we cannot guarantee that all splits have been fully accounted for.

Top Holding Treemap

Top Industries by Value

1N/A551.1M
43.0%
2Scientific & Technical Instruments107.5M
8.4%
3Entertainment87.2M
6.8%

Top Industries by Stock Count

1N/A25 stocks
48.1%
2Software - Infrastructure3 stocks
5.8%
3Oil & Gas E&P3 stocks
5.8%
Stock Holdings
WESTERN DIGITAL CORP
WESTERN DIGITAL CORP
-42.16%
Shares9.0M
Event2026-06-30
Filed2026-07-28
ALPHABET INC
ALPHABET INC
New
Shares2.4M
Event2026-06-30
Filed2026-07-28
MKSI
MKS INC.
-0.11%
Shares36.5M
Event2026-06-30
Filed2026-07-28
LUMENTUM HLDGS INC
LUMENTUM HLDGS INC
-51.90%
Shares12.9M
Event2026-06-30
Filed2026-07-28
LNTH
LANTHEUS HLDGS INC
-0.07%
Shares50.9M
Event2026-06-30
Filed2026-07-28
HPE-PC
HEWLETT PACKARD ENTERPRISE C
-0.10%
Shares601.3K
Event2026-06-30
Filed2026-07-28
CABLE ONE INC
CABLE ONE INC
16.20%
Shares89.9M
Event2026-06-30
Filed2026-07-28
QXO-PB
QXO INC
-0.07%
Shares1.2M
Event2026-06-30
Filed2026-07-28
BA-PA
BOEING CO
-0.09%
Shares828.7K
Event2026-06-30
Filed2026-07-28
TETRA TECH INC NEW
TETRA TECH INC NEW
-3.80%
Shares52.4M
Event2026-06-30
Filed2026-07-28
UBER TECHNOLOGIES INC
UBER TECHNOLOGIES INC
0.03%
Shares45.4M
Event2026-06-30
Filed2026-07-28
SNOWFLAKE INC
SNOWFLAKE INC
-0.09%
Shares32.5M
Event2026-06-30
Filed2026-07-28
CHEFS WHSE INC
CHEFS WHSE INC
-0.16%
Shares23.7M
Event2026-06-30
Filed2026-07-28
ETSY INC
ETSY INC
52.39%
Shares49.9M
Event2026-06-30
Filed2026-07-28
NEE-PS
NEXTERA ENERGY INC
98.96%
Shares941.0K
Event2026-06-30
Filed2026-07-28
PG&E CORP
PG&E CORP
0.15%
Shares46.5M
Event2026-06-30
Filed2026-07-28
MCHPP
MICROCHIP TECHNOLOGY INC.
0.41%
Shares603.5K
Event2026-06-30
Filed2026-07-28
BTT
BLACKROCK MUN TARGET TERM TR
25.65%
Shares2.0M
Event2026-06-30
Filed2026-07-28
INTEGER HLDGS CORP
INTEGER HLDGS CORP
0.19%
Shares45.2M
Event2026-06-30
Filed2026-07-28
APO-PA
APOLLO GLOBAL MGMT INC
-0.09%
Shares713.2K
Event2026-06-30
Filed2026-07-28
FWONK
LIBERTY MEDIA CORP DEL
-0.23%
Shares33.9M
Event2026-06-30
Filed2026-07-28
POST HLDGS INC
POST HLDGS INC
-0.17%
Shares40.2M
Event2026-06-30
Filed2026-07-28
MERIT MED SYS INC
MERIT MED SYS INC
New
Shares38.1M
Event2026-06-30
Filed2026-07-28
AKAMAI TECHNOLOGIES INC
AKAMAI TECHNOLOGIES INC
0.61%
Shares34.0M
Event2026-06-30
Filed2026-07-28
ON SEMICONDUCTOR CORP
ON SEMICONDUCTOR CORP
-43.97%
Shares21.9M
Event2026-06-30
Filed2026-07-28
NINE
NINE ENERGY SERVICE INC
-1.79%
Shares3.0M
Event2026-06-30
Filed2026-07-28
DDOG
DATADOG INC
-18.83%
Shares27.4M
Event2026-06-30
Filed2026-07-28
REVOLUTION MEDICINES INC
REVOLUTION MEDICINES INC
New
Shares30.3M
Event2026-06-30
Filed2026-07-28
FRPT
FRESHPET INC
0.03%
Shares31.8M
Event2026-06-30
Filed2026-07-28
BRIDGEBIO PHARMA INC
BRIDGEBIO PHARMA INC
-0.17%
Shares33.3M
Event2026-06-30
Filed2026-07-28
IRHYTHM HOLDINGS INC
IRHYTHM HOLDINGS INC
-0.10%
Shares32.6M
Event2026-06-30
Filed2026-07-28
LYV
LIVE NATION ENTERTAINMENT IN
0.00%
Shares29.7M
Event2026-06-30
Filed2026-07-28
PELOTON INTERACTIVE INC
PELOTON INTERACTIVE INC
10.72%
Shares21.5M
Event2026-06-30
Filed2026-07-28
FLR
FLUOR CORP
-0.55%
Shares26.2M
Event2026-06-30
Filed2026-07-28
JAZZ INVESTMENTS I LTD
JAZZ INVESTMENTS I LTD
New
Shares20.3M
Event2026-06-30
Filed2026-07-28
NOG
NORTHERN OIL & GAS INC
-0.17%
Shares33.2M
Event2026-06-30
Filed2026-07-28
AFFIRM HLDGS INC
AFFIRM HLDGS INC
-0.14%
Shares27.1M
Event2026-06-30
Filed2026-07-28
CYBERARK SOFTWARE LTD
CYBERARK SOFTWARE LTD
New
Shares19.0M
Event2026-06-30
Filed2026-07-28
CLOUDFLARE INC
CLOUDFLARE INC
New
Shares24.9M
Event2026-06-30
Filed2026-07-28
UNITY SOFTWARE INC
UNITY SOFTWARE INC
0.01%
Shares26.9M
Event2026-06-30
Filed2026-07-28
ORCL-D
ORACLE CORP
-0.16%
Shares645.8K
Event2026-06-30
Filed2026-07-28
MTH
MERITAGE HOMES CORP
-0.33%
Shares28.0M
Event2026-06-30
Filed2026-07-28
PATRICK INDS INC
PATRICK INDS INC
-0.09%
Shares19.1M
Event2026-06-30
Filed2026-07-28
LIBERTY MEDIA CORP DEL
LIBERTY MEDIA CORP DEL
0.00%
Shares24.5M
Event2026-06-30
Filed2026-07-28
BURL
BURLINGTON STORES INC
-13.98%
Shares17.5M
Event2026-06-30
Filed2026-07-28
PROGRESS SOFTWARE CORP
PROGRESS SOFTWARE CORP
-0.36%
Shares28.6M
Event2026-06-30
Filed2026-07-28
BAC-PL
BANK OF AMER CORP
-0.29%
Shares20.8K
Event2026-06-30
Filed2026-07-28
PARSONS CORP DEL
PARSONS CORP DEL
0.13%
Shares26.2M
Event2026-06-30
Filed2026-07-28
BIOMARIN PHARMACEUTICAL INC
BIOMARIN PHARMACEUTICAL INC
-0.26%
Shares26.4M
Event2026-06-30
Filed2026-07-28
IAU
ISHARES GOLD TR
-15.92%
Shares328.0K
Event2026-06-30
Filed2026-07-28
DROPBOX INC
DROPBOX INC
0.00%
Shares24.3M
Event2026-06-30
Filed2026-07-28
ARROWHEAD PHARMACEUTICALS IN
ARROWHEAD PHARMACEUTICALS IN
581.90%
Shares20.5M
Event2026-06-30
Filed2026-07-28
DOORDASH INC
DOORDASH INC
New
Shares24.7M
Event2026-06-30
Filed2026-07-28
SYNAPTICS INC
SYNAPTICS INC
0.00%
Shares16.2M
Event2026-06-30
Filed2026-07-28
GUIDEWIRE SOFTWARE INC
GUIDEWIRE SOFTWARE INC
-0.94%
Shares24.9M
Event2026-06-30
Filed2026-07-28
MYN
BLACKROCK MUNIYIELD N Y QUAL
0.00%
Shares2.3M
Event2026-06-30
Filed2026-07-28
MHD
BLACKROCK MUNIHOLDINGS FD IN
0.00%
Shares2.0M
Event2026-06-30
Filed2026-07-28
RIVN
RIVIAN AUTOMOTIVE INC
-0.04%
Shares18.6M
Event2026-06-30
Filed2026-07-28
GREENBRIER COS INC
GREENBRIER COS INC
0.00%
Shares19.0M
Event2026-06-30
Filed2026-07-28
DXCM
DEXCOM INC
-25.21%
Shares22.4M
Event2026-06-30
Filed2026-07-28
UPSTART HLDGS INC
UPSTART HLDGS INC
0.00%
Shares25.2M
Event2026-06-30
Filed2026-07-28
MQY
BLACKROCK MUNIYILD QULT FD I
0.00%
Shares1.6M
Event2026-06-30
Filed2026-07-28
FOUR
SHIFT4 PMTS INC
-1.92%
Shares19.2M
Event2026-06-30
Filed2026-07-28
ARES-PB
ARES MANAGEMENT CORPORATION
-0.06%
Shares479.7K
Event2026-06-30
Filed2026-07-28
ALNYLAM PHARMACEUTICALS INC
ALNYLAM PHARMACEUTICALS INC
-0.07%
Shares14.8M
Event2026-06-30
Filed2026-07-28
WFC-PL
WELLS FARGO & CO
-0.08%
Shares14.7K
Event2026-06-30
Filed2026-07-28
GPOR
GULFPORT ENERGY CORP
-1.10%
Shares97.5K
Event2026-06-30
Filed2026-07-28
NTNX
NUTANIX INC
-44.12%
Shares16.6M
Event2026-06-30
Filed2026-07-28
WK
WORKIVA INC
-1.57%
Shares16.6M
Event2026-06-30
Filed2026-07-28
RUBRIK INC.
RUBRIK INC.
New
Shares14.8M
Event2026-06-30
Filed2026-07-28
TALO
TALOS ENERGY INC
-12.43%
Shares1.2M
Event2026-06-30
Filed2026-07-28
MGP INGREDIENTS INC NEW
MGP INGREDIENTS INC NEW
-0.31%
Shares14.2M
Event2026-06-30
Filed2026-07-28
AEIS
ADVANCED ENERGY INDS
-87.78%
Shares4.8M
Event2026-06-30
Filed2026-07-28
BILL HOLDINGS INC
BILL HOLDINGS INC
0.00%
Shares15.1M
Event2026-06-30
Filed2026-07-28
ALPHABET INC
ALPHABET INC
New
Shares250.0K
Event2026-06-30
Filed2026-07-28
GLOBAL PMTS INC
GLOBAL PMTS INC
0.00%
Shares12.9M
Event2026-06-30
Filed2026-07-28
NEE-P
NEXTERA ENERGY INC
New
Shares228.9K
Event2026-06-30
Filed2026-07-28
MUJ
BLACKROCK MUNIHLDGS NJ QLTY
-23.17%
Shares882.0K
Event2026-06-30
Filed2026-07-28
WBD
WARNER BROS DISCOVERY INC
58.26%
Shares358.1K
Event2026-06-30
Filed2026-07-28
LIFE360 INC
LIFE360 INC
New
Shares8.9M
Event2026-06-30
Filed2026-07-28
GH
GUARDANT HEALTH INC
New
Shares7.2M
Event2026-06-30
Filed2026-07-28
LIVE NATION ENTERTAINMENT IN
LIVE NATION ENTERTAINMENT IN
-1.06%
Shares4.7M
Event2026-06-30
Filed2026-07-28
SPECTRUM BRANDS INC
SPECTRUM BRANDS INC
0.00%
Shares7.9M
Event2026-06-30
Filed2026-07-28
VERTEX INC
VERTEX INC
-0.36%
Shares9.2M
Event2026-06-30
Filed2026-07-28
TDOC
TELADOC HEALTH INC
0.00%
Shares7.5M
Event2026-06-30
Filed2026-07-28
NET
CLOUDFLARE INC
-0.76%
Shares5.6M
Event2026-06-30
Filed2026-07-28
MIRUM PHARMACEUTICALS INC
MIRUM PHARMACEUTICALS INC
-91.55%
Shares1.9M
Event2026-06-30
Filed2026-07-28
WEC ENERGY GROUP INC
WEC ENERGY GROUP INC
-1.97%
Shares5.2M
Event2026-06-30
Filed2026-07-28
SO
SOUTHERN CO
-1.26%
Shares5.6M
Event2026-06-30
Filed2026-07-28
HALOZYME THERAPEUTICS INC
HALOZYME THERAPEUTICS INC
-0.17%
Shares5.4M
Event2026-06-30
Filed2026-07-28
OSI SYSTEMS INC
OSI SYSTEMS INC
-0.88%
Shares4.5M
Event2026-06-30
Filed2026-07-28
MIY
BLACKROCK MUNIYIELD MICH QU
-27.20%
Shares479.7K
Event2026-06-30
Filed2026-07-28
GLD
SPDR GOLD TR
0.00%
Shares15.3K
Event2026-06-30
Filed2026-07-28
FIVE9 INC
FIVE9 INC
-1.76%
Shares6.2M
Event2026-06-30
Filed2026-07-28
NUTANIX INC
NUTANIX INC
-0.48%
Shares4.6M
Event2026-06-30
Filed2026-07-28
MYI
BLACKROCK MUNIYIELD QUALITY
-16.58%
Shares439.0K
Event2026-06-30
Filed2026-07-28
SOUTHERN CO
SOUTHERN CO
New
Shares4.8M
Event2026-06-30
Filed2026-07-28
ITGR
INTEGER HLDGS CORP
-2.31%
Shares3.8M
Event2026-06-30
Filed2026-07-28
VFL
ABRDN NATL MUN INCOME FD
0.00%
Shares401.7K
Event2026-06-30
Filed2026-07-28
IONS
IONIS PHARMACEUTICALS INC
-76.81%
Shares2.4M
Event2026-06-30
Filed2026-07-28
MFM
ABERDEEN MUN INCOME FD
0.20%
Shares333.8K
Event2026-06-30
Filed2026-07-28
MUC
BLACKROCK MUNIHLDNGS CALI
-12.28%
Shares128.8K
Event2026-06-30
Filed2026-07-28
EIM
EATON VANCE MUN BD FD
0.00%
Shares125.8K
Event2026-06-30
Filed2026-07-28
PPL CAP FDG INC
PPL CAP FDG INC
0.00%
Shares500.0K
Event2026-06-30
Filed2026-07-28
SECR
NEW YORK LIFE INVTS ACTIVE E
0.00%
Shares11.5K
Event2026-06-30
Filed2026-07-28
BLACKLINE INC
BLACKLINE INC
-53.54%
Shares295.0K
Event2026-06-30
Filed2026-07-28
WGHW
WW INTL INC
0.00%
Shares14.4K
Event2026-06-30
Filed2026-07-28
CHEGG INC
CHEGG INC
0.00%
Shares45.0K
Event2026-06-30
Filed2026-07-28

Call Option Holdings
No call option holdings data available

Put Option Holdings
No put option holdings data available