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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q3 2025

Holdings as of Sep 30, 2025, filed Oct 20, 2025. Long positions only; changes compare share counts with Q2 2025.

Institution overview
Positions
876
+8 vs. Q2 2025
Portfolio value
$24.7B
+$1.38B (+5.9%) vs. Q2 2025
Filed
Oct 20, 2025
SEC
Holdings of Calamos Advisors LLC in Q3 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
NVDANVIDIA CorpStock7,475,880$1.39B5.6%−101,750−1.3%ReducedHistory
MSFTMicrosoft CorpStock2,197,239$1.14B4.6%−34,397−1.5%ReducedHistory
AAPLApple Inc.Stock4,074,858$1.04B4.2%−40,795−1.0%ReducedHistory
AMZNAmazon Com IncStock3,213,654$705.6M2.9%−69,201−2.1%ReducedHistory
GOOGLAlphabet Inc.Stock2,241,020$544.8M2.2%−118,191−5.0%ReducedHistory
METAMeta Platforms, Inc.Stock678,596$498.3M2.0%+435+0.1%AddedHistory
AVGOBroadcom Inc.Stock1,400,671$462.1M1.9%+6,520+0.5%AddedHistory
Alibaba Group Hldg Ltd01609WBG6NOTE 0.500% 6/0–$417.5M1.7%–––
TSLATesla, Inc.Stock771,312$343.0M1.4%−4,995−0.6%ReducedHistory
Western Digital Corp958102AT2NOTE 3.000%11/1–$251.1M1.0%–––
VVisa Inc.Stock717,360$244.9M1.0%−6,784−0.9%ReducedHistory
BA.PABoeing CoDEP CONV PFD A3,424,571$238.2M1.0%−5,608−0.2%ReducedHistory
JPMJPMorgan Chase & CoStock744,568$234.9M0.9%−2,485−0.3%ReducedHistory
GOOGAlphabet Inc.Stock961,591$234.2M0.9%+1330.0%AddedHistory
Spotify USA Inc84921RAB6NOTE 3/1–$213.1M0.9%–––
NFLXNetflix IncStock177,255$212.5M0.9%+566+0.3%AddedHistory
LLYEli Lilly & CoStock274,313$209.3M0.8%−4,255−1.5%ReducedHistory
SPYSPDR S&P 500 ETF TrustETF277,016$184.5M0.7%+76,890+38.4%AddedHistory
ORCLOracle CorpStock646,529$181.8M0.7%−59,231−8.4%ReducedHistory
WMTWalmart Inc.Stock1,653,891$170.5M0.7%−87,392−5.0%ReducedHistory
Seagate HDD Cayman81180WBL4NOTE 3.500% 6/0–$158.5M0.6%–––
Southern Co842587DZ7NOTE 4.500% 6/1–$157.4M0.6%–––
WFCWells Fargo & CompanyStock1,781,796$149.4M0.6%−32,030−1.8%ReducedHistory
HPE.PCHewlett Packard Enterprise Co7.625 MAND CONV2,115,675$143.7M0.6%+222,988+11.8%AddedHistory
Uber Technologies, Inc90353TAM2NOTE 0.875%12/0–$140.8M0.6%–––
MAMastercard IncStock246,913$140.4M0.6%+510+0.2%AddedHistory
PPL Cap FDG Inc69352PAS2NOTE 2.875% 3/1–$138.3M0.6%–––
BRK.BBerkshire Hathaway IncStock267,559$134.5M0.5%−46,936−14.9%ReducedHistory
XOMExxonMobil Holdings CorpCOM1,189,619$134.1M0.5%−74,039−5.9%ReducedHistory
Wayfair Inc.94419LAR2NOTE 3.500%11/1–$133.5M0.5%–––
GSGoldman Sachs Group IncStock165,539$131.8M0.5%+10,476+6.8%AddedHistory
PLTRPalantir Technologies Inc.Stock690,269$125.9M0.5%+28,131+4.2%AddedHistory
Airbnb, Inc.009066AB7NOTE 3/1–$122.8M0.5%–––
JNJJohnson & JohnsonStock638,656$118.4M0.5%+67,894+11.9%AddedHistory
BACBank of America CorpStock2,264,371$116.8M0.5%−373,721−14.2%ReducedHistory
HDHome Depot, Inc.Stock278,402$112.8M0.5%+20,945+8.1%AddedHistory
LINLinde PLCStock237,087$112.6M0.5%+432+0.2%AddedHistory
KKR.PDKKR & Co. Inc.6.25 CON SER D2,127,240$111.4M0.5%+330,093+18.4%AddedHistory
Strategy Inc594972AJ0NOTE 0.625% 3/1–$107.8M0.4%–––
ABBVAbbVie Inc.Stock450,832$104.4M0.4%−19,186−4.1%ReducedHistory
NOWServiceNow, Inc.Stock111,526$102.6M0.4%−16,342−12.8%ReducedHistory
Axon Enterprise, Inc.05464CAB7NOTE 0.500%12/1–$102.6M0.4%–––
Snowflake Inc.833445AD1NOTE 10/0–$100.0M0.4%–New–
Apollo Global Mgmt Inc03769M304SER A MAND CNV1,418,721$99.7M0.4%−1,314−0.1%Reduced–
Duke Energy CORP26441CBY0NOTE 4.125% 4/1–$99.3M0.4%–––
MCHPPMicrochip Technology IncDEP SHS REPSTG1,679,957$99.2M0.4%+973+0.1%AddedHistory
On Semiconductor Corp682189AU9NOTE 0.500% 3/0–$99.0M0.4%–––
CVXChevron CorpStock635,452$98.7M0.4%+224,425+54.6%AddedHistory
MKS Inc55306NAB0NOTE 1.250% 6/0–$97.2M0.4%–––
PMPhilip Morris International Inc.Stock565,169$91.7M0.4%+783+0.1%AddedHistory
Bloom Energy Corp093712AK3NOTE 3.000% 6/0–$89.8M0.4%–––
GEVGE Vernova Inc.Stock145,397$89.4M0.4%−144−0.1%ReducedHistory
COSTCostco Wholesale CorpStock95,630$88.5M0.4%−9,704−9.2%ReducedHistory
BSXBoston Scientific CorpStock894,430$87.3M0.4%−105,849−10.6%ReducedHistory
RTXRTX CorpStock517,185$86.5M0.3%+1,051+0.2%AddedHistory
UNHUnitedHealth Group IncStock246,883$85.2M0.3%−40,212−14.0%ReducedHistory
GEGeneral Electric CoStock282,707$85.0M0.3%+461+0.2%AddedHistory
AeroVironment Inc008073AA6NOTE 7/1–$84.6M0.3%–New–
Nextera Energy Cap Hldgs Inc65339KCY4NOTE 3.000% 3/0–$82.3M0.3%–––
ARES.PBAres Management Corp6.75 SE B PFD1,643,534$81.7M0.3%−1,376−0.1%ReducedHistory
DraftKings Inc.26142RAB0NOTE 3/1–$80.8M0.3%–––
BKNGBooking Holdings Inc.Stock14,907$80.5M0.3%+30+0.2%AddedHistory
Rivian Automotive, Inc.76954AAB9NOTE 4.625% 3/1–$79.9M0.3%–––
CSCOCisco Systems, Inc.Stock1,163,509$79.6M0.3%+2,498+0.2%AddedHistory
UBERUber Technologies, IncStock811,790$79.5M0.3%+75,880+10.3%AddedHistory
INTUIntuit Inc.Stock115,426$78.8M0.3%+4,695+4.2%AddedHistory
MSMorgan StanleyStock482,952$76.8M0.3%−4,830−1.0%ReducedHistory
PGProcter & Gamble CoStock494,168$75.9M0.3%−49,583−9.1%ReducedHistory
LOWLowes Companies IncStock292,257$73.4M0.3%+9,466+3.3%AddedHistory
Stride, Inc.86333MAA6NOTE 1.125% 9/0–$73.2M0.3%–––
TMOThermo Fisher Scientific Inc.Stock147,700$71.6M0.3%+27,510+22.9%AddedHistory
DISWalt Disney CoStock622,256$71.2M0.3%+1,148+0.2%AddedHistory
ABTAbbott LaboratoriesStock510,523$68.4M0.3%+1,187+0.2%AddedHistory
AXPAmerican Express CoStock203,656$67.6M0.3%+942+0.5%AddedHistory
UNPUnion Pacific CorpStock283,927$67.1M0.3%+98,772+53.3%AddedHistory
MUMicron Technology IncStock395,621$66.2M0.3%+553+0.1%AddedHistory
KOCoca Cola CoStock995,637$66.0M0.3%+1,910+0.2%AddedHistory
MPCMarathon Petroleum CorpStock336,206$64.8M0.3%+974+0.3%AddedHistory
BABoeing CoStock299,003$64.5M0.3%+9,169+3.2%AddedHistory
Cloudflare, Inc.18915MAC1NOTE 8/1–$64.4M0.3%–––
NSCNorfolk Southern CorpStock214,274$64.4M0.3%+20,301+10.5%AddedHistory
Sea Ltd81141RAG5NOTE 0.250% 9/1–$64.0M0.3%–––
Snowflake Inc.833445AB5NOTE 10/0–$62.7M0.3%–New–
Strategy Inc594972AN1NOTE 2.250% 6/1–$62.6M0.3%–––
CMS Energy Corp125896BX7NOTE 3.375% 5/0–$61.9M0.3%–––
WMWaste Management IncStock279,054$61.6M0.2%+43,476+18.5%AddedHistory
TMUST-Mobile US, Inc.Stock256,807$61.5M0.2%+290+0.1%AddedHistory
TAT&T Inc.Stock2,130,746$60.2M0.2%−176,170−7.6%ReducedHistory
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$60.1M0.2%–––
Coinbase Global, Inc.19260QAF4NOTE 0.250% 4/0–$59.4M0.2%–––
SHWSherwin Williams CoCOM171,406$59.4M0.2%+30,207+21.4%AddedHistory
Liberty Media Corp531229AQ5NOTE 2.250% 8/1–$58.8M0.2%–––
Evergy, Inc.30034WAD8NOTE 4.500%12/1–$58.1M0.2%–––
QXO.PBQXO, Inc.5.50 DEP PFD1,053,275$57.9M0.2%+1,919+0.2%AddedHistory
SHIFT4 PMTS Inc82452JAD1NOTE 0.500% 8/0–$57.8M0.2%–––
AMDAdvanced Micro Devices IncStock354,168$57.3M0.2%00.0%UnchangedHistory
Rivian Automotive, Inc.76954AAD5NOTE 3.625%10/1–$57.1M0.2%–––
NEENextera Energy IncStock747,458$56.4M0.2%+452,206+153.2%AddedHistory
Halozyme Therapeutics, Inc.40637HAF6NOTE 1.000% 8/1–$56.4M0.2%–––
American WTR Cap Corp03040WBE4NOTE 3.625% 6/1–$56.1M0.2%–––

Options (39)

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 Q3 2025
SecurityClassPutsCalls
SPYSPDR S&P 500 ETF TrustETF$711.3M$362.8M
Invesco QQQ Trust Series I46090E103ETF$414.6M$102.2M
iShares Russell 2000 ETF464287655ETF$140.7M$150.3M
iShares MSCI Eafe ETF464287465ETF$90.6M–
iShares Tr464287234MSCI EMG MKT ETF$85.4M–
MSFTMicrosoft CorpStock–$70.7M
iShares Tr464287556ISHARES BIOTECH–$48.2M
SHOPShopify Inc.Stock–$33.0M
VanEck Semiconductor ETF92189F676ETF–$22.9M
TSLATesla, Inc.Stock–$17.8M
NVDANVIDIA CorpStock–$8.53M
PDDPDD Holdings Inc.SPONSORED ADS–$8.16M
AMDAdvanced Micro Devices IncStock$7.66M$283.8K
ODDOddity Tech LtdSHS CL A–$7.78M
AZNAstraZeneca PLCSPONSORED ADR–$7.38M
Direxion Shares ETF Trust25459Y207NASDAQ 100 EQ WT–$7.12M
UBERUber Technologies, IncStock–$7.00M
TSMTaiwan Semiconductor Manufacturing Co LtdADR–$4.58M
NVONovo Nordisk A SADR–$4.47M
TMETencent Music Entertainment GroupSPON ADS–$3.25M
NFLXNetflix IncStock–$2.68M
BABAAlibaba Group Holding LtdADR–$2.59M
EMBJEmbraer S.A.ADR–$2.52M
AAPLApple Inc.Stock–$2.05M
COSTCostco Wholesale CorpStock–$1.98M
VALEVale S.A.SPONSORED ADS–$1.85M
GOOGLAlphabet Inc.Stock–$1.76M
AMZNAmazon Com IncStock–$1.76M
AVGOBroadcom Inc.Stock–$1.74M
GEOGeo Group IncCOM–$1.68M
METAMeta Platforms, Inc.Stock–$1.48M
NTESNetEase, Inc.SPONSORED ADS–$1.27M
PKXPosco Holdings Inc.SPONSORED ADR–$1.13M
LINLinde PLCStock–$938.4K
BZKanzhun LtdSPONSORED ADS–$908.1K
AMGNAmgen IncStock–$558.4K
CSCOCisco Systems, Inc.Stock–$555.0K
TMUST-Mobile US, Inc.Stock–$476.5K
QCOMQualcomm IncStock–$318.5K

Sold out since Q2 2025 (109)

Positions held at the end of Q2 2025 that are gone from this filing.

The largest 100 of 109 by value last quarter.

Positions of Calamos Advisors LLC sold out since Q2 2025
SecurityClassShares in Q2 2025Value in Q2 2025% of portfolio in Q2 2025History
HESHess CorpStock593,307$82.2M0.4%History
JNPRJuniper Networks IncCOM1,165,330$46.5M0.2%History
ANSSAnsys IncCOM125,000$43.9M0.2%History
Royal Caribbean Group780153BQ4NOTE 6.000% 8/1–$43.8M0.2%–
Nextera Energy Inc65339F713UNIT 09/01/20251,098,389$43.6M0.2%–
AMEDAmedisys IncCOM409,603$40.3M0.2%History
NCL Corp Ltd62886HBD2NOTE 1.125% 2/1–$39.9M0.2%–
Snap Inc83304AAF3NOTE 5/0–$32.5M0.1%–
iShares Russell 2000 ETF464287655ETF139,315$30.1M0.1%–
Okta, Inc.679295AD7NOTE 0.125% 9/0–$22.3M0.1%–
MIDDLEBY Corp596278AB7NOTE 1.000% 9/0–$22.1M0.1%–
COOPMaverick Merger Sub 2, LLCCOM129,515$19.3M0.1%History
iShares Tr464287630RUS 2000 VAL ETF113,214$17.9M0.1%–
CHXChampionX CorpCOM710,103$17.6M0.1%History
SKXSkechers USA IncCL A243,951$15.4M0.1%History
Par Technology Corp698884AE3NOTE 1.500%10/1–$15.0M0.1%–
IPGInterpublic Group of Companies, Inc.COM583,141$14.3M0.1%History
GMSGMS Inc.COM125,011$13.6M0.1%History
ASTSAST SpaceMobile, Inc.COM CL A288,758$13.5M0.1%History
AZEKAZEK Co Inc.CL A247,910$13.5M0.1%History
iShares Tr464287184CHINA LG-CAP ETF330,035$12.1M0.1%–
iShares Tr464287234MSCI EMG MKT ETF225,145$10.9M<0.1%–
American Airls Group Inc02376RAF9NOTE 6.500% 7/0–$10.5M<0.1%–
Wix.com Ltd.92940WAD1NOTE 8/1–$9.92M<0.1%–
Evolent Health, Inc.30050BAH4NOTE 3.500%12/0–$8.50M<0.1%–
TASKTaskUs, Inc.CLASS A COM489,976$8.21M<0.1%History
Liveperson Inc538146AD3NOTE 12/1–$8.17M<0.1%–
FLEXFlex Ltd.Stock156,500$7.81M<0.1%History
TTDTrade Desk, Inc.Stock103,125$7.42M<0.1%History
WYWeyerhaeuser CoCOM NEW225,885$5.80M<0.1%History
IMSRTerrestrial Energy Inc.SHS CL A500,000$5.55M<0.1%History
CZRCaesars Entertainment, Inc.COM188,200$5.34M<0.1%History
FNFabrinetSHS18,100$5.33M<0.1%History
Varonis Sys Inc922280AB8NOTE 1.250% 8/1–$5.02M<0.1%–
Mesa Labs Inc59064RAA7NOTE 1.375% 8/1–$4.90M<0.1%–
UTIUniversal Technical Institute IncCOM141,394$4.79M<0.1%History
FLUTFlutter Entertainment plcSHS16,295$4.66M<0.1%History
DOWDow Inc.Stock168,968$4.47M<0.1%History
VRNAVerona Pharma plcSPONSORED ADS43,907$4.15M<0.1%History
BROSDutch Bros Inc.CL A49,220$3.37M<0.1%History
RDDTReddit, Inc.Stock18,500$2.79M<0.1%History
Peabody Engr Corp704551AD2NOTE 3.250% 3/0–$2.58M<0.1%–
SMFGSumitomo Mitsui Financial Group, Inc.SPONSORED ADR168,076$2.54M<0.1%History
DTDynatrace, Inc.Stock40,827$2.25M<0.1%History
GDDYGoDaddy Inc.CL A12,463$2.24M<0.1%History
LMBLimbach Holdings, Inc.COM15,471$2.17M<0.1%History
Veritone, Inc.92347MAB6NOTE 1.750%11/1–$2.07M<0.1%–
ONONOn Holding AGStock37,820$1.97M<0.1%History
FLSFlowserve CorpCOM37,115$1.94M<0.1%History
UUnity Software Inc.COM75,585$1.83M<0.1%History
Innoviva, Inc.45781MAB7NOTE 2.500% 8/1–$1.79M<0.1%–
RDNTRadNet, Inc.COM31,164$1.77M<0.1%History
NTNXNutanix, Inc.Stock21,387$1.63M<0.1%History
PRCTPROCEPT BioRobotics CorpCOM27,142$1.56M<0.1%History
MRXMarex Group LtdORD38,075$1.50M<0.1%History
TOSTToast, Inc.Stock33,720$1.49M<0.1%History
Insulet Corp45784PAK7NOTE 0.375% 9/0–$1.48M<0.1%–
SFMSprouts Farmers Market, Inc.COM8,880$1.46M<0.1%History
BBDBank BradescoSP ADR PFD NEW397,015$1.23M<0.1%History
ARAntero Resources CorpCOM29,930$1.21M<0.1%History
CASYCaseys General Stores IncCOM2,191$1.12M<0.1%History
FERGFerguson Enterprises Inc.COMMON STOCK NEW5,123$1.12M<0.1%History
ENPHEnphase Energy, Inc.Stock27,096$1.07M<0.1%History
Pacira BioSciences, Inc.695127AF7NOTE 0.750% 8/0–$1.04M<0.1%–
Infleqtion, Inc.G2130T124UNIT 05/14/2030100,000$1.03M<0.1%–
SLABSilicon Laboratories Inc.Stock6,917$1.02M<0.1%History
Vanguard Long-Term Treasury ETF92206C847ETF17,596$987.5K<0.1%–
UFPTUfp Technologies IncCOM3,921$957.4K<0.1%History
MASIMasimo CorpCOM5,617$944.9K<0.1%History
PLMRPalomar Holdings, Inc.Stock6,068$936.0K<0.1%History
TTANServiceTitan, Inc.SHS CL A8,155$874.1K<0.1%History
EVEREverQuote, Inc.COM CL A33,151$801.6K<0.1%History
APPSDigital Turbine, Inc.COM NEW131,459$775.6K<0.1%History
BVBrightView Holdings, Inc.COM36,493$607.6K<0.1%History
WBAWalgreens Boots Alliance, Inc.COM52,650$604.4K<0.1%History
GRDNGuardian Pharmacy Services, Inc.CL A27,949$595.6K<0.1%History
IMSRWTerrestrial Energy Inc.*W EXP 99/99/999250,000$587.5K<0.1%History
LFMDLifeMD, Inc.COM39,857$542.9K<0.1%History
PDTJohn Hancock Premium Dividend FundCOM SH BEN INT37,856$498.6K<0.1%History
EXGEaton Vance Tax-Managed Global Diversified Equity Income FundCOM56,104$490.9K<0.1%History
WIXWix.com Ltd.SHS2,826$447.8K<0.1%History
MMDNYLI MacKay DefinedTerm Muni Opportunities FundCOM29,436$435.4K<0.1%History
ZVIAZevia PBCCL A125,574$404.3K<0.1%History
ATRCAtriCure, Inc.COM12,126$397.4K<0.1%History
DECKDeckers Outdoor CorpCOM3,518$362.6K<0.1%History
UTGReaves Utility Income FundCOM SH BEN INT9,808$354.9K<0.1%History
BSTBlackRock Science & Technology TrustSHS8,586$327.7K<0.1%History
CIKUBS Asset Management Income Fund, Inc.COM110,285$326.4K<0.1%History
JFRNuveen Floating Rate Income FundCOM38,180$323.4K<0.1%History
MNDYmonday.com Ltd.SHS978$307.6K<0.1%History
PARPar Technology CorpCOM4,052$281.1K<0.1%History
KAROKarooooo Ltd.ORD SHS5,522$270.5K<0.1%History
SPKLSpark I Acquisition CorpORD SHS24,769$270.0K<0.1%History
CAEPCantor Equity Partners III, Inc.SHS CL A24,641$260.0K<0.1%History
NUTXNutex Health Inc.COM1,947$242.4K<0.1%History
NGSNatural Gas Services Group IncCOM8,210$211.9K<0.1%History
Cinemark Hldgs Inc17243VAB8NOTE 4.500% 8/1–$123.0K<0.1%–
NICE Ltd.653656AB4NOTE 9/1–$95.7K<0.1%–
OLOOlo Inc.CL A10,490$93.4K<0.1%History
BFLYButterfly Network, Inc.COM CL A44,835$89.7K<0.1%History