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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q4 2025

Holdings as of Dec 31, 2025, filed Jan 29, 2026. Long positions only; changes compare share counts with Q3 2025.

Institution overview
Positions
883
+7 vs. Q3 2025
Portfolio value
$24.3B
−$397.2M (−1.6%) vs. Q3 2025
Filed
Jan 29, 2026
SEC
Holdings of Calamos Advisors LLC in Q4 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
NVDANVIDIA CorpStock7,214,896$1.35B5.5%−260,984−3.5%ReducedHistory
AAPLApple Inc.Stock3,975,058$1.08B4.4%−99,800−2.4%ReducedHistory
MSFTMicrosoft CorpStock2,128,249$1.03B4.2%−68,990−3.1%ReducedHistory
AMZNAmazon Com IncStock3,140,363$724.9M3.0%−73,291−2.3%ReducedHistory
GOOGLAlphabet Inc.Stock2,285,067$715.2M2.9%+44,047+2.0%AddedHistory
AVGOBroadcom Inc.Stock1,383,914$479.0M2.0%−16,757−1.2%ReducedHistory
METAMeta Platforms, Inc.Stock663,151$437.7M1.8%−15,445−2.3%ReducedHistory
TSLATesla, Inc.Stock798,431$359.1M1.5%+27,119+3.5%AddedHistory
Western Digital Corp958102AT2NOTE 3.000%11/1–$350.6M1.4%–––
Alibaba Group Hldg Ltd01609WBG6NOTE 0.500% 6/0–$298.7M1.2%–––
LLYEli Lilly & CoStock272,554$292.9M1.2%−1,759−0.6%ReducedHistory
GOOGAlphabet Inc.Stock924,074$290.0M1.2%−37,517−3.9%ReducedHistory
VVisa Inc.Stock698,009$244.8M1.0%−19,351−2.7%ReducedHistory
JPMJPMorgan Chase & CoStock713,195$229.8M0.9%−31,373−4.2%ReducedHistory
BA.PABoeing CoDEP CONV PFD A3,109,660$214.8M0.9%−314,911−9.2%ReducedHistory
WMTWalmart Inc.Stock1,478,905$164.8M0.7%−174,986−10.6%ReducedHistory
Spotify USA Inc84921RAB6NOTE 3/1–$163.3M0.7%–––
WFCWells Fargo & CompanyStock1,745,144$162.6M0.7%−36,652−2.1%ReducedHistory
NFLXNetflix IncStock1,608,090$150.8M0.6%−164,460−9.3%ReducedConverted for a 10-for-1 splitHistory
GSGoldman Sachs Group IncStock170,397$149.8M0.6%+4,858+2.9%AddedHistory
PPL Cap FDG Inc69352PAS2NOTE 2.875% 3/1–$144.7M0.6%–––
Wayfair Inc.94419LAR2NOTE 3.500%11/1–$141.8M0.6%–––
XOMExxonMobil Holdings CorpCOM1,174,576$141.3M0.6%−15,043−1.3%ReducedHistory
Duke Energy CORP26441CBY0NOTE 4.125% 4/1–$140.8M0.6%–––
Seagate HDD Cayman81180WBL4NOTE 3.500% 6/0–$137.6M0.6%–––
MAMastercard IncStock240,682$137.4M0.6%−6,231−2.5%ReducedHistory
JNJJohnson & JohnsonStock650,750$134.7M0.6%+12,094+1.9%AddedHistory
BRK.BBerkshire Hathaway IncStock257,121$129.2M0.5%−10,438−3.9%ReducedHistory
BACBank of America CorpStock2,317,578$127.5M0.5%+53,207+2.3%AddedHistory
HPE.PCHewlett Packard Enterprise Co7.625 MAND CONV1,888,658$126.0M0.5%−227,017−10.7%ReducedHistory
SOMNSouthern CoUNIT 12/15/20282,485,706$125.2M0.5%+2,485,706NewHistory
Airbnb, Inc.009066AB7NOTE 3/1–$124.3M0.5%–––
Uber Technologies, Inc90353TAM2NOTE 0.875%12/0–$122.0M0.5%–––
MUMicron Technology IncStock398,748$113.8M0.5%+3,127+0.8%AddedHistory
MKS Inc55306NAB0NOTE 1.250% 6/0–$113.4M0.5%–––
KKR.PDKKR & Co. Inc.6.25 CON SER D2,114,902$109.6M0.5%−12,338−0.6%ReducedHistory
PLTRPalantir Technologies Inc.Stock609,519$108.3M0.4%−80,750−11.7%ReducedHistory
ABBVAbbVie Inc.Stock466,290$106.5M0.4%+15,458+3.4%AddedHistory
On Semiconductor Corp682189AU9NOTE 0.500% 3/0–$101.2M0.4%–––
Snowflake Inc.833445AB5NOTE 10/0–$98.9M0.4%–––
TMOThermo Fisher Scientific Inc.Stock169,900$98.4M0.4%+22,200+15.0%AddedHistory
MCHPPMicrochip Technology IncDEP SHS REPSTG1,684,603$98.2M0.4%+4,646+0.3%AddedHistory
Rivian Automotive, Inc.76954AAB9NOTE 4.625% 3/1–$97.1M0.4%–––
Apollo Global Mgmt Inc03769M304SER A MAND CNV1,270,138$95.9M0.4%−148,583−10.5%Reduced–
CVXChevron CorpStock614,108$93.6M0.4%−21,344−3.4%ReducedHistory
HDHome Depot, Inc.Stock270,784$93.2M0.4%−7,618−2.7%ReducedHistory
PMPhilip Morris International Inc.Stock559,721$89.8M0.4%−5,448−1.0%ReducedHistory
RTXRTX CorpStock485,264$89.0M0.4%−31,921−6.2%ReducedHistory
SPYSPDR S&P 500 ETF TrustETF130,267$88.8M0.4%−146,749−53.0%ReducedHistory
CSCOCisco Systems, Inc.Stock1,130,206$87.1M0.4%−33,303−2.9%ReducedHistory
INTUIntuit Inc.Stock130,688$86.6M0.4%+15,262+13.2%AddedHistory
Nextera Energy Cap Hldgs Inc65339KCY4NOTE 3.000% 3/0–$86.5M0.4%–––
GEVGE Vernova Inc.Stock131,910$86.2M0.4%−13,487−9.3%ReducedHistory
GEGeneral Electric CoStock275,559$84.9M0.3%−7,148−2.5%ReducedHistory
LINLinde PLCStock198,178$84.5M0.3%−38,909−16.4%ReducedHistory
ORCLOracle CorpStock429,286$83.7M0.3%−217,243−33.6%ReducedHistory
Datadog, Inc.23804LAD5NOTE 12/0–$83.6M0.3%–New–
BSXBoston Scientific CorpStock871,657$83.1M0.3%−22,773−2.5%ReducedHistory
ARES.PBAres Management Corp6.75 SE B PFD1,640,609$82.7M0.3%−2,925−0.2%ReducedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$82.3M0.3%–––
AMDAdvanced Micro Devices IncStock371,183$79.5M0.3%+17,015+4.8%AddedHistory
UNHUnitedHealth Group IncStock239,803$79.2M0.3%−7,080−2.9%ReducedHistory
MSMorgan StanleyStock444,534$78.9M0.3%−38,418−8.0%ReducedHistory
AeroVironment Inc008073AA6NOTE 7/1–$77.6M0.3%–––
ISRGIntuitive Surgical IncCOM NEW135,737$76.9M0.3%+22,597+20.0%AddedHistory
LOWLowes Companies IncStock318,739$76.9M0.3%+26,482+9.1%AddedHistory
CCitigroup IncStock651,888$76.1M0.3%+124,655+23.6%AddedHistory
COSTCostco Wholesale CorpStock88,093$76.0M0.3%−7,537−7.9%ReducedHistory
MRKMerck & Co., Inc.Stock719,806$75.8M0.3%+209,606+41.1%AddedHistory
Evergy, Inc.30034WAD8NOTE 4.500%12/1–$75.2M0.3%–––
Strategy Inc594972AS0NOTE 12/0–$74.9M0.3%–New–
AXPAmerican Express CoStock199,599$73.8M0.3%−4,057−2.0%ReducedHistory
ALB.PAAlbemarle Corp7.25% DEP SHS A1,236,486$73.4M0.3%+216,721+21.3%AddedHistory
CRMSalesforce, Inc.Stock276,780$73.3M0.3%+71,745+35.0%AddedHistory
BILL Holdings, Inc.090043AF7NOTE 4/0–$73.3M0.3%–New–
NOWServiceNow, Inc.Stock470,517$72.1M0.3%−87,113−15.6%ReducedConverted for a 5-for-1 splitHistory
Advanced Energy Inds007973AE0NOTE 2.500% 9/1–$71.4M0.3%–––
Rivian Automotive, Inc.76954AAD5NOTE 3.625%10/1–$69.7M0.3%–––
BKNGBooking Holdings Inc.Stock12,922$69.2M0.3%−1,985−13.3%ReducedHistory
PGProcter & Gamble CoStock481,445$69.0M0.3%−12,723−2.6%ReducedHistory
KOCoca Cola CoStock971,974$68.0M0.3%−23,663−2.4%ReducedHistory
CMS Energy Corp125896BX7NOTE 3.375% 5/0–$66.0M0.3%–––
Lumentum Hldgs Inc55024UAH2NOTE 1.500%12/1–$65.2M0.3%–––
Sea Ltd81141RAG5NOTE 0.250% 9/1–$64.5M0.3%–––
SPGIS&P Global Inc.Stock122,648$64.1M0.3%+16,708+15.8%AddedHistory
UBERUber Technologies, IncStock781,330$63.8M0.3%−30,460−3.8%ReducedHistory
SHIFT4 PMTS Inc82452JAD1NOTE 0.500% 8/0–$63.8M0.3%–––
UNPUnion Pacific CorpStock275,352$63.7M0.3%−8,575−3.0%ReducedHistory
ABTAbbott LaboratoriesStock501,683$62.9M0.3%−8,840−1.7%ReducedHistory
LRCXLam Research CorpStock366,417$62.7M0.3%+29,989+8.9%AddedHistory
Guidewire Software, Inc.40171VAC4NOTE 1.250%11/0–$61.8M0.3%–New–
NSCNorfolk Southern CorpStock212,722$61.4M0.3%−1,552−0.7%ReducedHistory
CSXCSX CorpStock1,691,627$61.3M0.3%+433,253+34.4%AddedHistory
Cloudflare, Inc.18915MAC1NOTE 8/1–$60.7M0.2%–––
Snowflake Inc.833445AD1NOTE 10/0–$60.2M0.2%–––
JD.com, Inc.47215PAJ5NOTE 0.250% 6/0–$59.2M0.2%–––
DISWalt Disney CoStock519,957$59.2M0.2%−102,299−16.4%ReducedHistory
NEENextera Energy IncStock735,937$59.1M0.2%−11,521−1.5%ReducedHistory
SHWSherwin Williams CoCOM180,602$58.5M0.2%+9,196+5.4%AddedHistory
Jazz Investments I Ltd472145AH4NOTE 3.125% 9/1–$58.4M0.2%–––

Options (37)

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 Q4 2025
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$617.1M$406.6M
Invesco QQQ Trust Series I46090E103ETF$404.3M$106.2M
iShares Russell 2000 ETF464287655ETF$122.7M$138.4M
NFLXNetflix IncStock–$102.5M
iShares Tr464287234MSCI EMG MKT ETF$94.5M–
iShares Tr464287556ISHARES BIOTECH–$57.5M
iShares MSCI Eafe ETF464287465ETF$47.2M–
VanEck Semiconductor ETF92189F676ETF–$26.8M
NVDANVIDIA CorpStock$559.7K$18.1M
HALHalliburton CoStock–$15.5M
iShares MSCI India ETF46429B598ETF–$12.9M
MSFTMicrosoft CorpStock–$12.9M
ORCLOracle CorpStock–$12.7M
RKLBRocket Lab CorpCOM–$11.3M
NKENIKE, Inc.Stock–$10.5M
URBNUrban Outfitters IncCOM–$9.46M
MDTMedtronic plcStock–$8.86M
AVGOBroadcom Inc.Stock–$8.12M
Direxion Shares ETF Trust25459Y207NASDAQ 100 EQ WT–$7.30M
EQTEQT CorpStock–$7.10M
iShares Tr464289180MSCI EURO FL ETF–$5.25M
MRKMerck & Co., Inc.Stock–$5.04M
AZNAstraZeneca PLCSPONSORED ADR–$4.84M
AAPLApple Inc.Stock–$2.67M
GOOGLAlphabet Inc.Stock–$2.04M
COSTCostco Wholesale CorpStock–$1.94M
AMZNAmazon Com IncStock–$1.84M
TSLATesla, Inc.Stock–$1.56M
METAMeta Platforms, Inc.Stock–$1.54M
EMBJEmbraer S.A.ADR–$1.34M
LINLinde PLCStock–$997.5K
AMGNAmgen IncStock–$592.6K
TMUST-Mobile US, Inc.Stock–$502.7K
CSCOCisco Systems, Inc.Stock–$431.0K
ProShares Tr74347X831ULTRAPRO QQQ$423.9K–
QCOMQualcomm IncStock–$349.4K
AMDAdvanced Micro Devices IncStock–$339.8K

Sold out since Q3 2025 (107)

Positions held at the end of Q3 2025 that are gone from this filing.

The largest 100 of 107 by value last quarter.

Positions of Calamos Advisors LLC sold out since Q3 2025
SecurityClassShares in Q3 2025Value in Q3 2025% of portfolio in Q3 2025History
Axon Enterprise, Inc.05464CAB7NOTE 0.500%12/1–$102.6M0.4%–
Nova Ltd.66980MAB2NOTE 10/1–$42.8M0.2%–
KKellanovaStock475,515$39.0M0.2%History
Redfin Corp75737FAE8NOTE 0.500% 4/0–$35.6M0.1%–
Q2 Hldgs Inc74736LAF6NOTE 0.125%11/1–$30.4M0.1%–
Fiverr Intl Ltd33835LAA3NOTE 11/0–$29.9M0.1%–
Chart Inds Inc16115Q4076.75DP CNV PFD B396,817$28.2M0.1%–
Wolfspeed, Inc.977852AD4NOTE 1.875%12/0–$24.2M0.1%–
Digitalocean Hldgs Inc25402DAB8NOTE 12/0–$23.6M0.1%–
Shopify Inc.82509LAA5NOTE 0.125%11/0–$21.7M0.1%–
Uber Technologies, Inc90353TAJ9NOTE 12/1–$20.3M0.1%–
Wolfspeed, Inc.977852AB8NOTE 0.250% 2/1–$17.7M0.1%–
Pinduoduo Inc722304AC6NOTE 12/0–$14.9M0.1%–
EAElectronic Arts Inc.COM66,500$13.4M0.1%History
TDGTransDigm Group INCCOM10,046$13.2M0.1%History
AZOAutoZone IncCOM2,864$12.3M<0.1%History
SHIFT4 PMTS Inc82452JAB5NOTE 12/1–$11.4M<0.1%–
IBNIcici Bank LtdADR339,288$10.3M<0.1%History
AVDXAvidXchange Holdings, Inc.COM1,000,000$9.95M<0.1%History
Verint Systems Inc92343XAC4NOTE 0.250% 4/1–$9.78M<0.1%–
HDRNHadron Energy, Inc.ORD SHS CL A925,000$9.75M<0.1%History
Freshpet, Inc.358039AB1NOTE 3.000% 4/0–$8.99M<0.1%–
Rapid7, Inc.753422AF1NOTE 0.250% 3/1–$8.94M<0.1%–
CACICACI International IncCL A17,700$8.83M<0.1%History
CNRCore Natural Resources, Inc.COM SHS95,744$7.99M<0.1%History
SESea LtdSPONSORD ADS44,481$7.95M<0.1%History
Kosmos Energy Ltd.500688AH9NOTE 3.125% 3/1–$7.90M<0.1%–
PGRProgressive CorpStock31,918$7.88M<0.1%History
Southern Co842587DP9NOTE 3.875%12/1–$7.81M<0.1%–
ARESAres Management CorpCL A COM STK48,567$7.77M<0.1%History
DKNGDraftKings Inc.Stock207,570$7.76M<0.1%History
Beyond Meat, Inc.08862EAB5NOTE 3/1–$7.31M<0.1%–
INFAInformatica Inc.COM CL A253,567$6.30M<0.1%History
TECKTeck Resources LtdCL B122,500$5.38M<0.1%History
TMETencent Music Entertainment GroupSPON ADS191,951$4.48M<0.1%History
NBISNebius Group N.V.Stock38,467$4.32M<0.1%History
IRENIREN LtdORDINARY SHARES90,425$4.24M<0.1%History
SMRNuscale Power CorpCL A COM113,667$4.09M<0.1%History
PRIMPrimoris Services CorpStock26,968$3.70M<0.1%History
LENZLENZ Therapeutics, Inc.COM77,266$3.60M<0.1%History
IONQIonQ, Inc.COM55,403$3.41M<0.1%History
USARUSA Rare Earth, Inc.Stock190,962$3.28M<0.1%History
STMSTMicroelectronics N.V.NY REGISTRY114,000$3.22M<0.1%History
MIRMMirum Pharmaceuticals, Inc.COM43,250$3.17M<0.1%History
FORLFour Leaf Acquisition CorpCOM CL A231,000$2.77M<0.1%History
NENoble Corp plcORD SHS A86,428$2.44M<0.1%History
CORTCorcept Therapeutics IncCOM25,882$2.15M<0.1%History
ODDOddity Tech LtdSHS CL A32,720$2.04M<0.1%History
ALABAstera Labs, Inc.Stock9,236$1.81M<0.1%History
Celcuity Inc.15102KAA8NOTE 2.750% 8/0–$1.76M<0.1%–
PWPPerella Weinberg PartnersCLASS A COM79,562$1.70M<0.1%History
TEMTempus AI, Inc.CL A19,859$1.60M<0.1%History
KTOSKratos Defense & Security Solutions, Inc.COM NEW17,368$1.59M<0.1%History
AZZAzz IncCOM14,057$1.53M<0.1%History
GEOGeo Group IncCOM70,000$1.43M<0.1%History
LINCLincoln Educational Services CorpCOM55,357$1.30M<0.1%History
IRTCiRhythm Holdings, Inc.COM7,494$1.29M<0.1%History
CVSACovista Inc.COM8,030$1.24M<0.1%History
ARMArm Holdings PLCADR8,630$1.22M<0.1%History
MODModine Manufacturing CoCOM8,582$1.22M<0.1%History
SRADSportradar Group AGCLASS A ORD SHS43,641$1.17M<0.1%History
NETDNabors Energy Transition Corp. IICL A100,000$1.12M<0.1%History
HROWHarrow, Inc.COM22,575$1.09M<0.1%History
CRMLWCritical Metals Corp.*W EXP 02/27/202500,000$1.05M<0.1%History
SEZLSezzle Inc.COM12,959$1.03M<0.1%History
TDUPThredUp Inc.CL A106,757$1.01M<0.1%History
ELFe.l.f. Beauty, Inc.COM7,537$998.5K<0.1%History
ARLOArlo Technologies, Inc.COM52,055$882.3K<0.1%History
TPBTurning Point Brands, Inc.COM8,745$864.5K<0.1%History
EMEEMCOR Group, Inc.Stock1,225$795.7K<0.1%History
LEUCentrus Energy CorpStock2,500$775.2K<0.1%History
INDVIndivior Pharmaceuticals, Inc.ORD30,184$727.7K<0.1%History
AEXAAmerican Exceptionalism Acquisition Corp. AORD CL A63,013$688.7K<0.1%History
CIIBlackRock Enhanced Large Cap Core Fund, Inc.COM29,874$687.1K<0.1%History
HTDJohn Hancock Tax-Advantaged Dividend Income FundCOM27,328$677.7K<0.1%History
SWIMLatham Group, Inc.COM87,036$662.3K<0.1%History
Integer Hldgs Corp45826HAB5NOTE 2.125% 2/1–$609.5K<0.1%–
EVFEaton Vance Senior Income TrustSH BEN INT107,882$591.2K<0.1%History
BBNBlackRock Taxable Municipal Bond TrustSHS34,386$570.8K<0.1%History
MCNXAI Madison Equity Premium Income FundCOM92,174$568.7K<0.1%History
ASICAtegrity Specialty Insurance Co HoldingsCOM27,949$552.6K<0.1%History
ETONEton Pharmaceuticals, Inc.COM23,634$513.6K<0.1%History
MANHManhattan Associates IncStock2,309$473.3K<0.1%History
AVKAdvent Convertible & Income FundCOM35,282$451.3K<0.1%History
ELVAElectrovaya Inc.COM NEW71,172$419.2K<0.1%History
DSGXDescartes Systems Group IncCOM4,378$412.5K<0.1%History
HIXWestern Asset High Income Fund II Inc.COM89,913$391.1K<0.1%History
SMMTSummit Therapeutics Inc.COM18,628$384.9K<0.1%History
CVLTCommvault Systems IncCOM2,017$380.8K<0.1%History
ISRLFIsrael Acquisitions CorpCLASS A ORD30,000$377.7K<0.1%History
NIOBWNiocorp Developments Ltd*W EXP 03/17/202177,835$320.1K<0.1%History
TBLDThornburg Income Builder Opportunities TrustCOM13,728$273.1K<0.1%History
APOApollo Global Management, Inc.COM1,849$246.4K<0.1%History
AWFAlliancebernstein Global High Income Fund IncCOM18,785$210.6K<0.1%History
Bloom Energy Corp093712AM9NOTE 3.000% 6/0–$199.2K<0.1%–
BDCIUBTC Development Corp.UNIT 09/11/203019,683$198.8K<0.1%History
Strategy Inc594972AQ4NOTE 0.625% 9/1–$196.8K<0.1%–
ALMUAeluma, Inc.COM11,791$189.8K<0.1%History
AVPTAvePoint, Inc.COM CL A11,036$165.7K<0.1%History
ASMAvino Silver & Gold Mines LtdCOM21,055$110.5K<0.1%History