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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

Holdings in Q2 2021

Holdings as of Jun 30, 2021, filed Jul 22, 2021. Long positions only; changes compare share counts with Q1 2021.

Institution overview
Positions
919
+42 vs. Q1 2021
Portfolio value
$20.1B
+$3.20B (+18.9%) vs. Q1 2021
Filed
Jul 22, 2021
SEC
Holdings of Calamos Advisors LLC in Q2 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock2,862,559$775.5M3.9%+359,157+14.3%AddedHistory
AAPLApple Inc.Stock5,221,382$715.1M3.6%+659,518+14.5%AddedHistory
AMZNAmazon Com IncStock163,029$560.8M2.8%+18,433+12.7%AddedHistory
SPYSPDR S&P 500 ETF TrustETF1,225,504$524.6M2.6%−138,446−10.2%ReducedHistory
METAMeta Platforms, Inc.Stock1,108,497$385.4M1.9%+176,298+18.9%AddedHistory
Tesla, Inc.88160RAG6NOTE 2.000% 5/1–$338.5M1.7%–––
GOOGLAlphabet Inc.Stock135,180$330.1M1.6%+10,535+8.5%AddedHistory
NVDANVIDIA CorpStock332,880$266.3M1.3%+44,959+15.6%AddedHistory
Tesla, Inc.88160RAD3NOTE 2.375% 3/1–$210.3M1.0%–––
JPMJPMorgan Chase & CoStock1,164,495$181.1M0.9%+155,171+15.4%AddedHistory
UNHUnitedHealth Group IncStock433,893$173.7M0.9%+78,423+22.1%AddedHistory
GOOGAlphabet Inc.Stock67,880$170.1M0.8%+13,006+23.7%AddedHistory
VVisa Inc.Stock700,581$163.8M0.8%+20,820+3.1%AddedHistory
BACBank of America CorpStock3,787,407$156.2M0.8%+480,508+14.5%AddedHistory
AMATApplied Materials IncStock1,055,319$150.3M0.7%+103,540+10.9%AddedHistory
Micron Technology Inc595112AX1NOTE 3.125% 5/0–$148.7M0.7%–––
Pioneer Nat Res Co723787AP2NOTE 0.250% 5/1–$146.3M0.7%–New–
Southwest Airls Co844741BG2NOTE 1.250% 5/0–$145.7M0.7%–––
Snap Inc83304AAB2NOTE 0.750% 8/0–$137.8M0.7%–––
DISWalt Disney CoStock756,793$133.0M0.7%+84,292+12.5%AddedHistory
PYPLPayPal Holdings, Inc.Stock396,910$115.7M0.6%+45,016+12.8%AddedHistory
Square Inc852234AD5NOTE 0.500% 5/1–$113.7M0.6%–––
CRMSalesforce, Inc.Stock464,230$113.4M0.6%+59,423+14.7%AddedHistory
JNJJohnson & JohnsonStock682,137$112.4M0.6%+114,852+20.2%AddedHistory
Palo Alto Networks Inc697435AD7NOTE 0.750% 7/0–$108.8M0.5%–––
Workday, Inc.98138HAF8NOTE 0.250%10/0–$108.8M0.5%–––
Twitter, Inc.90184LAF9NOTE 0.250% 6/1–$107.8M0.5%–––
Sea Ltd81141RAF7NOTE 2.375%12/0–$107.2M0.5%–New–
LLYEli Lilly & CoStock466,318$107.0M0.5%+67,739+17.0%AddedHistory
MAMastercard IncStock286,693$104.7M0.5%+77,868+37.3%AddedHistory
MongoDB, Inc.60937PAD8NOTE 0.250% 1/1–$103.6M0.5%–––
HDHome Depot, Inc.Stock322,053$102.7M0.5%+51,702+19.1%AddedHistory
Okta, Inc.679295AD7NOTE 0.125% 9/0–$102.6M0.5%–––
BRK.BBerkshire Hathaway IncStock349,759$97.2M0.5%+79,552+29.4%AddedHistory
Nextera Energy Inc65339F796UNIT 09/01/2022S1,696,329$95.2M0.5%−41,180−2.4%Reduced–
UNPUnion Pacific CorpStock429,606$94.5M0.5%+64,872+17.8%AddedHistory
HONHoneywell International IncCOM426,088$93.5M0.5%+75,865+21.7%AddedHistory
NKENIKE, Inc.Stock593,995$91.8M0.5%+43,122+7.8%AddedHistory
Coupa Software Inc22266LAF3NOTE 0.375% 6/1–$91.7M0.5%–New–
ADBEAdobe Inc.Stock156,361$91.6M0.5%+50,000+47.0%AddedHistory
Jazz Investments I Ltd472145AF8NOTE 2.000% 6/1–$89.2M0.4%–New–
Stanley Black & Decker, Inc.854502846UNIT 11/15/2022724,947$87.5M0.4%+29,514+4.2%Added–
Zynga Inc98986TAB4NOTE 0.250% 6/0–$85.8M0.4%–––
NCL Corp Ltd62886HAT8NOTE 6.000% 5/1–$85.6M0.4%–New–
LINLinde PLCSHS293,901$85.0M0.4%+16,501+5.9%AddedHistory
KOCoca Cola CoStock1,569,003$84.9M0.4%−2,760−0.2%ReducedHistory
NFLXNetflix IncStock160,006$84.5M0.4%+20,739+14.9%AddedHistory
CVXChevron CorpStock801,528$84.0M0.4%+93,111+13.1%AddedHistory
WMTWalmart Inc.Stock593,765$83.7M0.4%+165,487+38.6%AddedHistory
RTXRTX CorpStock979,689$83.6M0.4%+85,921+9.6%AddedHistory
CSXCSX CorpStock2,601,348$83.5M0.4%+448,248+20.8%AddedConverted for a 3-for-1 splitHistory
Microchip Technology Inc595017AU8NOTE 0.125%11/1–$83.0M0.4%–––
Wayfair Inc.94419LAD3NOTE 1.125%11/0–$82.6M0.4%–––
Zendesk, Inc.98936JAD3NOTE 0.625% 6/1–$81.0M0.4%–New–
PGProcter & Gamble CoStock599,592$80.9M0.4%+89,866+17.6%AddedHistory
MSMorgan StanleyStock870,555$79.8M0.4%+83,278+10.6%AddedHistory
WFCWells Fargo & CompanyStock1,720,842$77.9M0.4%+150,032+9.6%AddedHistory
GSGoldman Sachs Group IncStock202,169$76.7M0.4%+25,921+14.7%AddedHistory
TSLATesla, Inc.Stock112,473$76.4M0.4%+8,574+8.3%AddedHistory
Booking Holdings Inc.09857LAN8NOTE 0.750% 5/0–$76.4M0.4%–New–
CMCSAComcast CorpStock1,333,973$76.1M0.4%+209,453+18.6%AddedHistory
Dick's Sporting Goods, Inc.253393AD4NOTE 3.250% 4/1–$72.5M0.4%–New–
MUMicron Technology IncStock847,884$72.1M0.4%−14,460−1.7%ReducedHistory
Cloudflare, Inc.18915MAB3NOTE 0.750% 5/1–$71.2M0.4%–New–
Insulet Corp45784PAK7NOTE 0.375% 9/0–$70.6M0.4%–––
Okta, Inc.679295AF2NOTE 0.375% 6/1–$69.5M0.3%–New–
CSCOCisco Systems, Inc.Stock1,300,009$68.9M0.3%+239,067+22.5%AddedHistory
ACNAccenture plcStock233,314$68.8M0.3%+45,319+24.1%AddedHistory
Dominion Energy, Inc25746U133UNIT 99/99/9999661,975$64.3M0.3%+908+0.1%Added–
Colony Starwood Homes19625XAB8NOTE 3.500% 1/1–$63.5M0.3%–––
Teradyne, Inc880770AG7NOTE 1.250%12/1–$63.5M0.3%–––
XOMExxonMobil Holdings CorpCOM992,242$62.6M0.3%+110,044+12.5%AddedHistory
LRCXLam Research CorpCOM93,762$61.0M0.3%−2,033−2.1%ReducedHistory
Silicon Laboratories Inc.826919AD4NOTE 0.625% 6/1–$60.4M0.3%–New–
Dexcom Inc252131AK3NOTE 0.250%11/1–$59.5M0.3%–New–
Nice Sys Inc65366HAB9NOTE 1.250% 1/1–$59.4M0.3%–––
MRKMerck & Co., Inc.Stock759,439$59.1M0.3%+115,257+17.9%AddedHistory
Bilibili Inc.090040AB2NOTE 1.375% 4/0–$59.0M0.3%–––
MDTMedtronic plcStock461,851$57.3M0.3%+69,263+17.6%AddedHistory
Palo Alto Networks Inc697435AF2NOTE 0.375% 6/0–$57.1M0.3%–New–
Exact Sciences Corp30063PAB1NOTE 0.375% 3/1–$57.0M0.3%–––
Colfax Corp194014205UNIT 01/15/2022T303,520$56.5M0.3%00.0%Unchanged–
PEPPepsiCo IncStock380,853$56.4M0.3%+60,744+19.0%AddedHistory
Wayfair Inc.94419LAF8NOTE 1.000% 8/1–$55.2M0.3%–––
Sea Ltd81141RAD2NOTE 1.000%12/0–$54.6M0.3%–––
PFEPfizer IncStock1,389,803$54.4M0.3%+249,928+21.9%AddedHistory
Etsy Inc29786AAJ5NOTE 0.125%10/0–$54.4M0.3%–––
MCDMcDonalds CorpStock231,621$53.5M0.3%+38,320+19.8%AddedHistory
CCitigroup IncStock752,652$53.3M0.3%+92,299+14.0%AddedHistory
BMYBristol Myers Squibb CoStock796,371$53.2M0.3%+114,232+16.7%AddedHistory
ABBVAbbVie Inc.Stock469,437$52.9M0.3%+203,536+76.5%AddedHistory
MDLZMondelez International, Inc.Stock840,400$52.5M0.3%+302,548+56.3%AddedHistory
Nextera Energy Inc65339F739UNIT 99/99/99991,055,898$52.2M0.3%+2,450+0.2%Added–
PAYCPaycom Software, Inc.Stock142,476$51.8M0.3%+17,795+14.3%AddedHistory
LOWLowes Companies IncStock263,197$51.1M0.3%+44,006+20.1%AddedHistory
Datadog, Inc.23804LAB9NOTE 0.125% 6/1–$51.0M0.3%–New–
Zillow Group, Inc.98954MAE1NOTE 0.750% 9/0–$50.6M0.3%–––
Akamai Technologies Inc00971TAL5NOTE 0.375% 9/0–$50.4M0.3%–––
Liberty Media Corp Del531229AB8NOTE 1.375%10/1–$50.2M0.2%–––
DHRDanaher CorpStock186,431$50.0M0.2%+59,952+47.4%AddedHistory

Options (29)

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 2021
SecurityClassPutsCalls
Invesco QQQ Trust Series I46090E103ETF$370.0M$41.1M
SPYSPDR S&P 500 ETF TrustETF$357.9M$39.2M
Vanguard S&P 500 ETF922908363ETF$143.6M$91.5M
TSLATesla, Inc.Stock$142.4M$10.2M
SESea LtdSPONSORD ADS$80.7M$2.47M
iShares Tr46428743220 YR TR BD ETF$76.9M–
iShares Russell 2000 ETF464287655ETF–$49.1M
SNAPSnap IncStock$48.7M–
AMZNAmazon Com IncStock–$35.1M
GOOGLAlphabet Inc.Stock–$34.9M
MUMicron Technology IncStock–$33.8M
BABAAlibaba Group Holding LtdADR–$28.0M
iShares Tr464287234MSCI EMG MKT ETF$25.5M–
BACBank of America CorpStock–$21.6M
Royal Dutch Shell PLC780259206SPONS ADR A–$17.6M
IBNIcici Bank LtdADR–$16.8M
SYYSysco CorpStock–$14.9M
ADBEAdobe Inc.Stock–$13.5M
DALDelta Air Lines, Inc.COM NEW$13.0M–
Kraneshares Trust500767306CSI CHI INTERNET–$10.7M
PXDPioneer Natural Resources CoCOM–$7.96M
TSMTaiwan Semiconductor Manufacturing Co LtdADR–$7.57M
UBERUber Technologies, IncStock–$7.52M
UALUnited Airlines Holdings, Inc.COM$6.90M–
VanEck Vectors ETF Tr92189F403RUSSIA ETF–$6.51M
LMNDLemonade, Inc.Stock–$6.35M
DBX ETF Tr233051879XTRACK HRVST CSI–$5.62M
CPNGCoupang, Inc.CL A–$1.99M
PBRPetrobras - Petroleo Brasileiro SASPONSORED ADR–$1.59M

Sold out since Q1 2021 (83)

Positions held at the end of Q1 2021 that are gone from this filing.

Positions of Calamos Advisors LLC sold out since Q1 2021
SecurityClassShares in Q1 2021Value in Q1 2021% of portfolio in Q1 2021History
Twilio Inc90138FAB8NOTE 0.250% 6/0–$122.9M0.7%–
RingCentral, Inc.76680RAD9NOTE 3/1–$102.3M0.6%–
Teladoc Health, Inc.87918AAC9NOTE 1.375% 5/1–$55.8M0.3%–
Etsy Inc29786AAC0NOTE 3/0–$55.5M0.3%–
J2 Global Inc48123VAC6NOTE 3.250% 6/1–$48.8M0.3%–
Nuance Communications, Inc.67020YAK6DBCV 1.000%12/1–$46.8M0.3%–
Realpage Inc75606NAB5NOTE 1.500%11/1–$41.8M0.2%–
Wayfair Inc.94419LAB7NOTE 0.375% 9/0–$37.6M0.2%–
Spirit Airls Inc848577AA0NOTE 4.750% 5/1–$30.8M0.2%–
Renewable Energy Group, Inc.75972AAC7NOTE 4.000% 6/1–$24.6M0.1%–
SYNAPTICS Inc87157DAD1NOTE 0.500% 6/1–$23.0M0.1%–
Pluralsight Inc72941BAB2NOTE 0.375% 3/0–$15.5M0.1%–
INSMED Inc457669AA7NOTE 1.750% 1/1–$15.1M0.1%–
iShares Tr464287630RUS 2000 VAL ETF93,905$15.0M0.1%–
iShares Tr46435G334MSCI UK ETF NEW406,500$12.7M0.1%–
MongoDB, Inc.60937PAB2NOTE 0.750% 6/1–$11.8M0.1%–
CMICummins IncStock38,906$10.1M0.1%History
RSGRepublic Services, Inc.COM95,700$9.51M0.1%History
Rapid7, Inc.753422AB0NOTE 1.250% 8/0–$9.19M0.1%–
Flir Sys Inc302445101COM137,679$7.78M<0.1%–
Illumina, Inc.452327AH2NOTE 0.500% 6/1–$7.53M<0.1%–
SLQTSelectQuote, Inc.COM242,217$7.15M<0.1%History
DSPViant Technology Inc.COM CL A132,384$7.00M<0.1%History
Realpage Inc75606N109COM79,850$6.96M<0.1%–
RDFNRedfin CorpCOM95,162$6.34M<0.1%History
Inphi Corp45772F107COM34,761$6.20M<0.1%–
Penn Natl Gaming Inc707569AU3NOTE 2.750% 5/1–$6.14M<0.1%–
Varian Med Sys Inc92220P105COM34,700$6.13M<0.1%–
iShares Inc464286822MSCI MEXICO ETF132,000$5.79M<0.1%–
SIMOSilicon Motion Technology CORPSPONSORED ADR92,071$5.47M<0.1%History
CNQCanadian Natural Resources LtdCOM177,130$5.47M<0.1%History
Grubhub Inc400110102COM73,000$4.38M<0.1%–
PENNPENN Entertainment, Inc.COM41,137$4.31M<0.1%History
iShares Iboxx $ Investment Grade Corporate Bond ETF464287242ETF32,500$4.23M<0.1%–
NVEENV5 Global, Inc.COM41,747$4.03M<0.1%History
Seacor Holdings Inc811904AN1NOTE 3.250% 5/1–$3.89M<0.1%–
South Jersey Inds Inc838518116UNIT 99/99/9999100,000$3.85M<0.1%–
PRPLPurple Innovation, Inc.COM107,513$3.40M<0.1%History
Novellus Sys Inc670008AD3NOTE 2.625% 5/1–$3.33M<0.1%–
VCYTVeracyte, Inc.COM56,000$3.01M<0.1%History
AXGNAxogen, Inc.COM145,600$2.95M<0.1%History
CPACopa Holdings, S.A.CL A35,450$2.86M<0.1%History
HALOHalozyme Therapeutics, Inc.COM64,359$2.68M<0.1%History
SICPSilvergate Capital CorpCL A18,677$2.65M<0.1%History
TVTXTravere Therapeutics, Inc.COM102,633$2.56M<0.1%History
ASPNAspen Aerogels IncCOM124,368$2.53M<0.1%History
QMCOQuantum CorpCOM NEW265,736$2.21M<0.1%History
TDOCTeladoc Health, Inc.COM12,100$2.20M<0.1%History
ZMZoom Communications, Inc.Stock6,685$2.15M<0.1%History
RIORio Tinto PLCADR26,793$2.08M<0.1%History
ARWRArrowhead Pharmaceuticals, Inc.COM27,249$1.81M<0.1%History
GNSSGenasys Inc.COM229,599$1.53M<0.1%History
REALTheRealReal, Inc.COM66,645$1.51M<0.1%History
Austerlitz Acquisition CorpG0633D117UNIT 99/99/9999150,000$1.51M<0.1%–
Glu Mobile Inc379890106COM119,618$1.49M<0.1%–
NXHNeighborhood Intelligence, Inc.COM20,811$1.38M<0.1%History
AWHLAspira Women's Health Inc.COM188,660$1.27M<0.1%History
ONOn Semiconductor CorpStock28,317$1.18M<0.1%History
Spirit Rlty Cap Inc New84860WAB8NOTE 3.750% 5/1–$1.16M<0.1%–
Rada Electr Inds LtdM81863124COM PAR NEW89,715$1.08M<0.1%–
Decarbonization Plus Acqu II242794204UNIT 01/19/2026100,000$1.01M<0.1%–
JDJD.com, Inc.SPON ADS CL A11,448$965.0K<0.1%History
KNXKnight-Swift Transportation Holdings Inc.CL A19,593$942.0K<0.1%History
Decarbonization Plus Acqu II24279D204UNIT 03/19/202694,474$941.0K<0.1%–
AMEDAmedisys IncCOM3,434$909.0K<0.1%History
BIDUBaidu, Inc.ADR3,774$821.0K<0.1%History
EDUNew Oriental Education & Technology Group Inc.SPON ADR37,100$519.0K<0.1%History
Thoma Bravo AdvantageG88272102COM CL A49,700$519.0K<0.1%–
ADUSAddus HomeCare CorpCOM4,910$514.0K<0.1%History
Northern Genesis Acquisition66516U200UNIT 99/99/999950,000$512.0K<0.1%–
Soaring Eagle Acquisition CoG8354H100UNIT 02/23/202650,000$506.0K<0.1%–
Jazz Investments I Ltd472145AB7NOTE 1.875% 8/1–$487.0K<0.1%–
KCKingsoft Cloud Holdings LtdADS11,929$469.0K<0.1%History
CHWYChewy, Inc.CL A4,917$417.0K<0.1%History
Thimble Point Acquisition Co88408P206UNIT 99/99/999935,000$350.0K<0.1%–
DRIODarioHealth Corp.COM NEW16,133$311.0K<0.1%History
Gaslog LtdG37585109SHS52,725$304.0K<0.1%–
LSFLaird Superfood, Inc.COM STK8,013$300.0K<0.1%History
CPNGCoupang, Inc.CL A5,050$249.0K<0.1%History
iShares S&P 500 Growth ETF464287309ETF3,764$245.0K<0.1%–
TDWTidewater IncCOM17,434$218.0K<0.1%History
Verint Sys Inc92343XAA8NOTE 1.500% 6/0–$119.0K<0.1%–
SMRTSmartRent, Inc.COM CL A10,000$100.0K<0.1%History