Stocks/Funds/CIK 1316507

Calamos Advisors LLC

index-like (500+ pos)long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1316507
Assets
$20.82B
+34.7% YoY
Holdings
979
Lifetime alpha vs market
-0.04% annual
Average hold time
3.5 yr
median 1.5 yr

Quarterly history

Cum return +271% vs S&P +272% · α -2% lifetimeAUM $20.8B · peak $20.8BFlow $3.4B (+19%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+3.28%
adds when stocks drop
when a holding falls −10%+
Middle response
+2.56%
steady accumulation
Rally response
-13.61%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
NVDANVIDIA Corporation$1.43B6.9%+60.9%9.8 yr
AAPLApple Inc.$1.21B5.8%+14.7%10.5 yr
MSFTMicrosoft Corporation$879M4.2%-0.6%10.5 yr
GOOGLAlphabet Inc.$736M3.5%10.5 yr
AMZNAmazon.com, Inc.$709M3.4%+9.5%10.5 yr
AVGOBroadcom Inc.$511M2.5%+86.0%8.0 yr
SPYState Street SPDR S&P 50$459M2.2%+17.6%10.5 yr
METAMeta Platforms, Inc.$418M2.0%-0.4%10.5 yr
TSLATesla, Inc.$313M1.5%+43.4%8.8 yr
GOOGAlphabet Inc.$287M1.4%+84.3%10.5 yr
LLYEli Lilly and Company$284M1.4%+12.2%10.5 yr
JPMJPMorgan Chase & Co.$237M1.1%+21.8%10.5 yr
VVisa Inc.$230M1.1%-13.1%10.5 yr
XOMExxon Mobil Corporation$218M1.0%+47.6%10.5 yr
WMTWalmart Inc.$195M0.9%+42.8%10.5 yr

Portfolio composition (YoY)

Industry mix
Semiconductors12.9%+3.9pp$2.69B
Asset Management8.8%+3.1pp$1.84B
Internet Content & Information7.3%+0.8pp$1.51B
Unknown6.5%+1.2pp$1.34B
Consumer Electronics5.8%-0.3pp$1.21B
Software - Infrastructure5.7%-1.5pp$1.18B
Drug Manufacturers - General4.0%+0.1pp$835M
Specialty Retail3.7%-0.8pp$760M
Banks - Diversified3.0%-0.3pp$633M
Financial - Credit Services2.3%-0.9pp$476M
Country
US90.1%-1.0pp
Unknown6.5%+1.2pp
IE0.9%+0.1pp
GB0.9%-0.1pp
CH0.3%-0.0pp
TW0.2%+0.0pp
NL0.2%-0.1pp
CA0.1%-0.1pp
Top 5: 23.9% · Top 10: 33.4% · Top 25: 46.6%

Winners

TickerPrev $PnLYoY %
NVDA$819M+0.50B60.9%
AVGO$239M+0.20B86.0%
AAPL$948M+0.14B14.7%
GOOG$150M+0.13B84.3%
TSLA$207M+0.09B43.4%

Losers

TickerPrev $PnLYoY %
V$250M-0.03B-13.1%
MA$149M-0.01B-8.5%
MSFT$864M-0.01B-0.6%
META$394M-0.00B-0.4%

Top buys this quarter · 15

SPY State Street SPDR S&P 500 ETF +$374M
AAPL Apple Inc.+$204M
NVDA NVIDIA Corporation+$169M
PPLC PPL Corporation Corporate Unitnew+$113M
MSFT Microsoft Corporation+$879M
AVGO Broadcom Inc.+$83M
AMZN Amazon.com, Inc.+$709M
ANET Arista Networks, Inc.+$44M
META Meta Platforms, Inc.+$418M
EA Electronic Arts Inc.+$37M

Top sells this quarter · 15

GLW Corning Incorporated$87M
USFD US Foods Holding Corp.$34M
TGNA TEGNA Inc.exit$33M
MU Micron Technology, Inc.$26M
0HQN.L Cboe Global Markets, Inc.$24M
SATS EchoStar Corporation$23M
COLM Columbia Sportswear Company$22M
SOMN The Southern Company$21M
ROK Rockwell Automation, Inc.$20M
SPG Simon Property Group, Inc.$20M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$20.82B979+19.64%+17.59%+2.05%+3.42B
2025-12-31$18.19B693+18.65%+17.72%+0.93%-0.34B
2025-09-30$18.11B685+19.62%+17.52%+2.10%-0.42B
2025-06-30$17.12B675+16.28%+14.94%+1.34%-0.34B
2025-03-31$15.45B665+5.83%+8.30%-2.47%+0.42B
2024-12-31$15.85B671+21.14%+24.89%-3.75%+0.51B
2024-09-30$14.88B687+31.81%+36.04%-4.23%-0.41B
2024-06-30$14.53B700+20.23%+24.49%-4.26%-0.18B
2024-03-31$14.30B706+27.16%+29.62%-2.47%+0.12B
2023-12-31$13.06B648+25.32%+26.18%-0.86%-0.40B
2023-09-30$12.00B673+19.27%+21.57%-2.30%-0.58B
2023-06-30$13.10B733+20.52%+19.42%+1.10%-0.91B
2023-03-31$12.88B861-5.87%-7.82%+1.95%-1.82B
2022-12-31$13.75B958-16.07%-18.17%+2.10%-1.38B
2022-09-30$14.17B999-12.71%-15.51%+2.79%-0.87B
2022-06-30$15.50B869-9.50%-10.62%+1.12%+0.20B