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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q2 2025

Holdings as of Jun 30, 2025, filed Aug 8, 2025. Long positions only; changes compare share counts with Q1 2025.

Institution overview
Positions
868
+7 vs. Q1 2025
Portfolio value
$23.4B
+$2.20B (+10.4%) vs. Q1 2025
Filed
Aug 8, 2025
SEC
Holdings of Calamos Advisors LLC in Q2 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
NVDANVIDIA CorpStock7,577,630$1.20B5.1%+16,474+0.2%AddedHistory
MSFTMicrosoft CorpStock2,231,636$1.11B4.8%−69,947−3.0%ReducedHistory
AAPLApple Inc.Stock4,115,653$844.4M3.6%−151,955−3.6%ReducedHistory
AMZNAmazon Com IncStock3,282,855$720.2M3.1%+1610.0%AddedHistory
METAMeta Platforms, Inc.Stock678,161$500.5M2.1%−5,675−0.8%ReducedHistory
GOOGLAlphabet Inc.Stock2,359,211$415.8M1.8%−165,474−6.6%ReducedHistory
AVGOBroadcom Inc.Stock1,394,151$384.3M1.6%−33,921−2.4%ReducedHistory
Alibaba Group Hldg Ltd01609WBG6NOTE 0.500% 6/0–$319.0M1.4%–New–
VVisa Inc.Stock724,144$257.1M1.1%+10,826+1.5%AddedHistory
TSLATesla, Inc.Stock776,307$246.6M1.1%−23,186−2.9%ReducedHistory
NFLXNetflix IncStock176,689$236.6M1.0%+131+0.1%AddedHistory
BA.PABoeing CoDEP CONV PFD A3,430,179$233.3M1.0%−564,851−14.1%ReducedHistory
LLYEli Lilly & CoStock278,568$217.2M0.9%+5,462+2.0%AddedHistory
JPMJPMorgan Chase & CoStock747,053$216.6M0.9%−4,733−0.6%ReducedHistory
Spotify USA Inc84921RAB6NOTE 3/1–$189.9M0.8%–––
GOOGAlphabet Inc.Stock961,458$170.6M0.7%00.0%UnchangedHistory
WMTWalmart Inc.Stock1,741,283$170.3M0.7%−20,462−1.2%ReducedHistory
ORCLOracle CorpStock705,760$154.3M0.7%−5,530−0.8%ReducedHistory
BRK.BBerkshire Hathaway IncStock314,495$152.8M0.7%+25,608+8.9%AddedHistory
WFCWells Fargo & CompanyStock1,813,826$145.3M0.6%−43,181−2.3%ReducedHistory
Western Digital Corp958102AT2NOTE 3.000%11/1–$140.8M0.6%–––
Southern Co842587DZ7NOTE 4.500% 6/1–$140.2M0.6%–New–
MAMastercard IncStock246,403$138.5M0.6%−26,326−9.7%ReducedHistory
Axon Enterprise, Inc.05464CAB7NOTE 0.500%12/1–$136.8M0.6%–––
Uber Technologies, Inc90353TAM2NOTE 0.875%12/0–$136.5M0.6%–––
XOMExxonMobil Holdings CorpCOM1,263,658$136.2M0.6%+23,244+1.9%AddedHistory
Strategy Inc594972AJ0NOTE 0.625% 3/1–$133.7M0.6%–––
NOWServiceNow, Inc.Stock127,868$131.5M0.6%+13,898+12.2%AddedHistory
PPL Cap FDG Inc69352PAS2NOTE 2.875% 3/1–$126.3M0.5%–––
BACBank of America CorpStock2,638,092$124.8M0.5%−5,064−0.2%ReducedHistory
SPYSPDR S&P 500 ETF TrustETF200,126$123.6M0.5%−507,503−71.7%ReducedHistory
Airbnb, Inc.009066AB7NOTE 3/1–$121.0M0.5%–––
MCHPPMicrochip Technology IncDEP SHS REPSTG1,678,984$111.9M0.5%+529,199+46.0%AddedHistory
HPE.PCHewlett Packard Enterprise Co7.625 MAND CONV1,892,687$111.4M0.5%+194,531+11.5%AddedHistory
LINLinde PLCStock236,655$111.0M0.5%+1,403+0.6%AddedHistory
GSGoldman Sachs Group IncStock155,063$109.7M0.5%+557+0.4%AddedHistory
BSXBoston Scientific CorpStock1,000,279$107.4M0.5%+30,311+3.1%AddedHistory
Seagate HDD Cayman81180WBL4NOTE 3.500% 6/0–$107.0M0.5%–––
Apollo Global Mgmt Inc03769M304SER A MAND CNV1,420,035$106.3M0.5%−95,893−6.3%Reduced–
COSTCostco Wholesale CorpStock105,334$104.3M0.4%+470.0%AddedHistory
PMPhilip Morris International Inc.Stock564,386$102.8M0.4%−10,807−1.9%ReducedHistory
Wayfair Inc.94419LAR2NOTE 3.500%11/1–$99.8M0.4%–––
On Semiconductor Corp682189AU9NOTE 0.500% 3/0–$98.8M0.4%–––
KKR.PDKKR & Co. Inc.6.25 CON SER D1,797,147$96.3M0.4%+361,197+25.2%AddedHistory
Duke Energy CORP26441CBY0NOTE 4.125% 4/1–$96.0M0.4%–––
HDHome Depot, Inc.Stock257,457$94.4M0.4%+151+0.1%AddedHistory
PLTRPalantir Technologies Inc.Stock662,138$90.3M0.4%+29,367+4.6%AddedHistory
UNHUnitedHealth Group IncStock287,095$89.6M0.4%−17,829−5.8%ReducedHistory
MKS Inc55306NAB0NOTE 1.250% 6/0–$87.6M0.4%–New–
ABBVAbbVie Inc.Stock470,018$87.2M0.4%−31,743−6.3%ReducedHistory
INTUIntuit Inc.Stock110,731$87.2M0.4%+26,754+31.9%AddedHistory
JNJJohnson & JohnsonStock570,762$87.2M0.4%+314+0.1%AddedHistory
ARES.PBAres Management Corp6.75 SE B PFD1,644,910$87.2M0.4%−183,945−10.1%ReducedHistory
PGProcter & Gamble CoStock543,751$86.6M0.4%+2470.0%AddedHistory
BKNGBooking Holdings Inc.Stock14,877$86.1M0.4%+6,330+74.1%AddedHistory
Coinbase Global, Inc.19260QAF4NOTE 0.250% 4/0–$84.4M0.4%–New–
Lumentum Hldgs Inc55024UAH2NOTE 1.500%12/1–$84.2M0.4%–––
HESHess CorpStock593,307$82.2M0.4%+43,741+8.0%AddedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$80.7M0.3%–––
CSCOCisco Systems, Inc.Stock1,161,011$80.6M0.3%+2640.0%AddedHistory
Rivian Automotive, Inc.76954AAB9NOTE 4.625% 3/1–$78.5M0.3%–––
DISWalt Disney CoStock621,108$77.0M0.3%+2600.0%AddedHistory
GEVGE Vernova Inc.Stock145,541$77.0M0.3%+9,716+7.2%AddedHistory
Sea Ltd81141RAG5NOTE 0.250% 9/1–$75.6M0.3%–––
Strategy Inc594972AN1NOTE 2.250% 6/1–$75.4M0.3%–New–
RTXRTX CorpStock516,134$75.4M0.3%+2380.0%AddedHistory
GEGeneral Electric CoStock282,246$72.6M0.3%−19,606−6.5%ReducedHistory
Stride, Inc.86333MAA6NOTE 1.125% 9/0–$72.1M0.3%–––
KOCoca Cola CoStock993,727$70.3M0.3%+2800.0%AddedHistory
ABTAbbott LaboratoriesStock509,336$69.3M0.3%+26,310+5.4%AddedHistory
Nextera Energy Cap Hldgs Inc65339KCY4NOTE 3.000% 3/0–$69.0M0.3%–––
MSMorgan StanleyStock487,782$68.7M0.3%+42,795+9.6%AddedHistory
UBERUber Technologies, IncStock735,910$68.7M0.3%+50,751+7.4%AddedHistory
ISRGIntuitive Surgical IncCOM NEW126,302$68.6M0.3%+13,138+11.6%AddedHistory
TAT&T Inc.Stock2,306,916$66.8M0.3%+461,090+25.0%AddedHistory
Cloudflare, Inc.18915MAC1NOTE 8/1–$66.4M0.3%–––
QXO.PBQXO, Inc.5.50 DEP PFD1,051,356$65.2M0.3%+1,051,356NewHistory
FOUR.PAShift4 Payments, Inc.6 SER A CNV PREF564,562$65.0M0.3%+564,562NewHistory
AXPAmerican Express CoStock202,714$64.7M0.3%+143+0.1%AddedHistory
SPGIS&P Global Inc.Stock120,308$63.4M0.3%+106+0.1%AddedHistory
SHIFT4 PMTS Inc82452JAD1NOTE 0.500% 8/0–$62.9M0.3%–––
LOWLowes Companies IncStock282,791$62.7M0.3%+660.0%AddedHistory
CMGChipotle Mexican Grill IncCOM1,110,149$62.3M0.3%+845+0.1%AddedHistory
TMUST-Mobile US, Inc.Stock256,517$61.1M0.3%−55,828−17.9%ReducedHistory
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$61.1M0.3%–––
BABoeing CoStock289,834$60.7M0.3%+7,598+2.7%AddedHistory
MRSHMarsh & McLennan Companies, Inc.Stock276,422$60.4M0.3%+238+0.1%AddedHistory
CMS Energy Corp125896BX7NOTE 3.375% 5/0–$60.1M0.3%–––
Liberty Media Corp531229AQ5NOTE 2.250% 8/1–$59.6M0.3%–––
CVXChevron CorpStock411,027$58.9M0.3%−58,957−12.5%ReducedHistory
Strategy Inc594972AL5NOTE 0.875% 3/1–$58.5M0.3%–––
CBChubb LtdStock197,522$57.2M0.2%+177+0.1%AddedHistory
American WTR Cap Corp03040WBE4NOTE 3.625% 6/1–$56.3M0.2%–––
Rivian Automotive, Inc.76954AAD5NOTE 3.625%10/1–$55.9M0.2%–––
CRMSalesforce, Inc.Stock205,039$55.9M0.2%−124,489−37.8%ReducedHistory
MPCMarathon Petroleum CorpStock335,232$55.7M0.2%+59,238+21.5%AddedHistory
CATCaterpillar IncStock143,275$55.6M0.2%+60.0%AddedHistory
PANWPalo Alto Networks IncStock269,182$55.1M0.2%+3,521+1.3%AddedHistory
Snap Inc83304AAK2NOTE 0.500% 5/0–$54.5M0.2%–New–
Evergy, Inc.30034WAD8NOTE 4.500%12/1–$54.1M0.2%–––

Options (43)

Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.

Option positions of Calamos Advisors LLC in Q2 2025
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$849.7M$404.1M
iShares Russell 2000 ETF464287655ETF$130.2M$147.2M
Invesco QQQ Trust Series I46090E103ETF$136.5M$93.2M
iShares MSCI Eafe ETF464287465ETF–$57.2M
iShares Tr46428743220 YR TR BD ETF$36.2M–
UNHUnitedHealth Group IncStock–$35.2M
NVDANVIDIA CorpStock–$17.0M
SWTXSpringWorks Therapeutics, Inc.COM–$14.1M
BSXBoston Scientific CorpStock–$14.0M
AMZNAmazon Com IncStock$11.7M$761.0K
FLUTFlutter Entertainment plcSHS–$11.2M
PDDPDD Holdings Inc.SPONSORED ADS–$9.23M
TMOThermo Fisher Scientific Inc.Stock$7.96M–
FCXFreeport-McMoran IncStock–$7.15M
AAPLApple Inc.Stock–$6.66M
TSMTaiwan Semiconductor Manufacturing Co LtdADR–$6.39M
ORCLOracle CorpStock$6.36M–
FLEXFlex Ltd.Stock$5.18M–
SHOPShopify Inc.Stock–$4.96M
ABBVAbbVie Inc.Stock$4.27M–
MRKMerck & Co., Inc.Stock–$3.68M
ODDOddity Tech LtdSHS CL A–$3.62M
APTVAptiv PLCStock$3.61M–
ASTSAST SpaceMobile, Inc.COM CL A$3.29M–
TMToyota Motor CorpADS$3.28M–
CLSCelestica IncStock–$3.02M
Direxion Shares ETF Trust25459Y207NASDAQ 100 EQ WT–$2.91M
TSLATesla, Inc.Stock$2.20M$259.2K
TMETencent Music Entertainment GroupSPON ADS–$2.20M
PSMTPricesmart IncCOM–$1.84M
NTESNetEase, Inc.SPONSORED ADS–$1.83M
RDDTReddit, Inc.Stock–$1.05M
COSTCostco Wholesale CorpStock–$945.8K
NFLXNetflix IncStock–$932.5K
MSFTMicrosoft CorpStock–$825.9K
GOOGLAlphabet Inc.Stock–$773.2K
METAMeta Platforms, Inc.Stock–$576.4K
AVGOBroadcom Inc.Stock–$552.5K
TMUST-Mobile US, Inc.Stock–$533.4K
LINLinde PLCStock–$465.6K
AMGNAmgen IncStock–$311.6K
CSCOCisco Systems, Inc.Stock–$246.8K
AMDAdvanced Micro Devices IncStock–$205.5K

Sold out since Q1 2025 (100)

Positions held at the end of Q1 2025 that are gone from this filing.

Positions of Calamos Advisors LLC sold out since Q1 2025
SecurityClassShares in Q1 2025Value in Q1 2025% of portfolio in Q1 2025History
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$377.8M1.8%–
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$95.3M0.5%–
Akamai Technologies Inc00971TAJ0NOTE 0.125% 5/0–$43.0M0.2%–
BERYBerry Global Group, Inc.COM550,000$38.4M0.2%History
Etsy Inc29786AAL0NOTE 0.125% 9/0–$34.8M0.2%–
INSMED Inc457669AB5NOTE 0.750% 6/0–$33.1M0.2%–
Firstenergy Corp337932AR8NOTE 4.000% 5/0–$30.4M0.1%–
DFSDiscover Financial ServicesCOM112,300$19.2M0.1%History
NCL Corp Ltd62886HAX9NOTE 5.375% 8/0–$17.5M0.1%–
SHOPShopify Inc.Stock179,395$17.1M0.1%History
Pebblebrook Hotel Tr70509VAA8NOTE 1.750%12/1–$16.6M0.1%–
Zscaler, Inc.98980GAB8NOTE 0.125% 7/0–$15.8M0.1%–
Five9, Inc.338307AD3NOTE 0.500% 6/0–$15.0M0.1%–
Wayfair Inc.94419LAF8NOTE 1.000% 8/1–$11.7M0.1%–
PagerDuty, Inc.69553PAD2NOTE 1.500%10/1–$9.93M<0.1%–
Makemytrip Limited Mauritius56087FAB0NOTE 2/1–$9.34M<0.1%–
TEAMAtlassian CorpCL A43,157$9.16M<0.1%History
Lyft, Inc.55087PAB0NOTE 1.500% 5/1–$7.96M<0.1%–
ICLRIcon PLCCOM43,459$7.60M<0.1%History
Livongo Health Inc539183AA1NOTE 0.875% 6/0–$7.18M<0.1%–
Lithium Amers Corp New53680QAA6NOTE 1.750% 1/1–$6.65M<0.1%–
BMYBristol Myers Squibb CoStock107,005$6.53M<0.1%History
RDFNRedfin CorpCOM620,847$5.72M<0.1%History
Air Trans Svcs Group Inc00922RAD7NOTE 3.875% 8/1–$4.98M<0.1%–
Snap Inc83304AAD8NOTE 0.250% 5/0–$3.98M<0.1%–
STWDStarwood Property Trust, Inc.COM157,631$3.12M<0.1%History
CDNACareDx, Inc.COM143,989$2.56M<0.1%History
MKSIMKS IncCOM30,500$2.44M<0.1%History
LOPEGrand Canyon Education, Inc.COM13,744$2.38M<0.1%History
SKWDSkyward Specialty Insurance Group, Inc.COM36,406$1.93M<0.1%History
KNFKnife River CorpStock20,955$1.89M<0.1%History
RRCRange Resources CorpCOM45,239$1.81M<0.1%History
PHRPhreesia, Inc.COM62,445$1.60M<0.1%History
AIOTPowerfleet, Inc.COM290,221$1.59M<0.1%History
BILLBILL Holdings, Inc.Stock30,000$1.38M<0.1%History
Southwest Airls Co844741BG2NOTE 1.250% 5/0–$1.37M<0.1%–
OKTAOkta, Inc.CL A12,739$1.34M<0.1%History
STRAStrategic Education, Inc.COM14,838$1.25M<0.1%History
FIVNFive9, Inc.COM44,218$1.20M<0.1%History
LTHLife Time Group Holdings, Inc.COMMON STOCK39,105$1.18M<0.1%History
CWKCushman & Wakefield Ltd.SHS109,813$1.12M<0.1%History
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$1.04M<0.1%–
SAILSailPoint, Inc.COM53,688$1.01M<0.1%History
JLLJones Lang Lasalle IncCOM3,949$979.0K<0.1%History
GRABGrab Holdings LtdCLASS A ORD209,165$947.5K<0.1%History
ALHCAlignment Healthcare, Inc.COM50,262$935.9K<0.1%History
CAVACava Group, Inc.COM9,975$861.9K<0.1%History
YMMFull Truck Alliance Co. Ltd.SPONSORED ADS65,800$840.3K<0.1%History
ATATAtour Lifestyle Holdings LtdSPONSORED ADS29,030$823.0K<0.1%History
ROADConstruction Partners, Inc.COM CL A11,415$820.4K<0.1%History
WKWorkiva IncCOM CL A10,664$809.5K<0.1%History
RLRalph Lauren CorpCL A3,630$801.3K<0.1%History
ESTCElastic N.V.ORD SHS8,481$755.7K<0.1%History
AXGNAxogen, Inc.COM40,789$754.6K<0.1%History
CLBTCellebrite DI Ltd.ORDINARY SHARES38,642$750.8K<0.1%History
SMWBSimilarweb Ltd.SHS84,173$696.1K<0.1%History
Sunnova Energy Intl Inc.86745KAH7NOTE 2.625% 2/1–$695.5K<0.1%–
CFLTConfluent, Inc.CLASS A COM26,795$628.1K<0.1%History
BLFSBiolife Solutions IncCOM NEW24,852$567.6K<0.1%History
NBBNuveen Taxable Municipal Income FundCOM31,935$511.6K<0.1%History
Snap Inc83304AAB2NOTE 0.750% 8/0–$492.4K<0.1%–
LFVNLifevantage CorpCOM NEW33,576$489.5K<0.1%History
ZETAZeta Global Holdings Corp.CL A32,409$439.5K<0.1%History
PRDOPerdoceo Education CorpCOM17,349$436.8K<0.1%History
CARTMaplebear Inc.COM10,119$403.6K<0.1%History
RVTRoyce Small-Cap Trust, Inc.COM27,244$388.0K<0.1%History
United States STL Corp New912909AT5NOTE 5.000%11/0–$349.6K<0.1%–
BEBloom Energy CorpCOM CL A17,763$349.2K<0.1%History
BCXBlackRock Resources & Commodities Strategy TrustSHS37,243$347.5K<0.1%History
ERCAllspring Multi-Sector Income FundCOM36,719$338.5K<0.1%History
BPMCBlueprint Medicines CorpCOM3,721$329.3K<0.1%History
MCWMister Car Wash, Inc.COM39,806$314.1K<0.1%History
CVRXCVRx, Inc.COM25,011$305.9K<0.1%History
CHTRCharter Communications, Inc.CL A795$293.0K<0.1%History
Parsons Corp70202LAB8NOTE 0.250% 8/1–$272.8K<0.1%–
PCVXVaxcyte, Inc.COM6,794$256.5K<0.1%History
SAROStandardAero, Inc.COM9,460$252.0K<0.1%History
TDFTempleton Dragon Fund IncCOM25,356$246.0K<0.1%History
HubSpot Inc443573AD2NOTE 0.375% 6/0–$243.9K<0.1%–
NMCONuveen Municipal Credit Opportunities FundCOM22,720$243.1K<0.1%History
MYOMyomo, Inc.COM NEW44,161$212.4K<0.1%History
RMTRoyce Micro-Cap Trust, Inc.COM23,590$198.9K<0.1%History
CHNChina Fund, Inc.COM14,164$181.9K<0.1%History
FAXAbrdn Asia-Pacific Income Fund, Inc.COM NEW10,606$166.5K<0.1%History
BLNDBlend Labs, Inc.CL A46,990$157.4K<0.1%History
NPCENeuroPace IncCOM11,083$136.2K<0.1%History
Zillow Group, Inc.98954MAH4NOTE 2.750% 5/1–$124.6K<0.1%–
Burlington Stores, Inc.122017AD8NOTE 1.250%12/1–$113.3K<0.1%–
Vishay Intertechnology Inc928298AP3NOTE 2.250% 6/1–$83.2K<0.1%–
Marblegate Acquisition Corp.56608A113*W EXP 08/31/202228,160$36.5K<0.1%–
KULRKULR Technology Group, Inc.Common Stock25,700$33.9K<0.1%History
WULFTerawulf Inc.COM11,920$32.5K<0.1%History
REEWFCartesian Growth Corp II*W EXP 07/12/202500,000$31.1K<0.1%History
SMNRWSemnur Pharmaceuticals, Inc.*W EXP 03/28/202350,000$17.6K<0.1%History
CMLSQCumulus Media IncCOM CL A27,891$12.3K<0.1%History
Vast Renewables LimitedQ9379E113*W EXP 07/01/202200,000$6.12K<0.1%–
ZCARWZoomcar Holdings, Inc.*W EXP 05/31/202200,000$2.74K<0.1%History
Heramba Elec PLCG4411J106*W EXP 07/26/202250,000$2.63K<0.1%–
Ocean Biomedical, Inc.67644C112*W EXP 02/14/20262,500$1.67K<0.1%–
Nuveen CR Strategies Income67073D110RIGHT 04/29/2025108,010–––