Institutional Manager · CIK 0001316507
Calamos Advisors LLC
NAPERVILLE, IL · File #028-11166
Latest AUM
$26.63B
Positions
997
Top-10 Concentration
53.4%
Filings
12
Sector Allocation
Filing History
View all filings →- 13F COMBINATION REPORTQ/E Dec 2025997 pos · $26.63B
- 13F COMBINATION REPORTQ/E Sep 20251,003 pos · $27.08B
- 13F COMBINATION REPORTQ/E Jun 2025991 pos · $25.41B
- 13F COMBINATION REPORTQ/E Mar 2025987 pos · $22.97B
- 13F COMBINATION REPORTQ/E Dec 20241,059 pos · $23.91B
- 13F COMBINATION REPORTQ/E Sep 20241,072 pos · $23.13B
- 13F COMBINATION REPORTQ/E Jun 20241,087 pos · $22.52B
- 13F COMBINATION REPORTQ/E Mar 20241,097 pos · $21.11B
- 13F COMBINATION REPORTQ/E Dec 20231,066 pos · $19.25B
- 13F COMBINATION REPORTQ/E Sep 20231,127 pos · $20.21B
- 13F COMBINATION REPORTQ/E Jun 20231,256 pos · $20.48B
- 13F COMBINATION REPORTQ/E Mar 20231,342 pos · $21.32B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 7,214,896 | $1.35B | 9.92% |
| 2 | APPLE INC | AAPL | 3,975,058 | $1.08B | 7.97% |
| 3 | MICROSOFT CORP | MSFT | 2,128,249 | $1.03B | 7.59% |
| 4 | AMAZON COM INC | AMZN | 3,140,363 | $724.9M | 5.35% |
| 5 | ALPHABET INC | GOOG | 2,285,067 | $715.2M | 5.27% |
| 6 | SPDR S&P 500 ETF TR | SPY | 926,400 | $617.1M | 4.55% |
| 7 | BROADCOM INC | AVGO | 1,383,914 | $479.0M | 3.53% |
| 8 | META PLATFORMS INC | META | 663,151 | $437.7M | 3.23% |
| 9 | SPDR S&P 500 ETF TR | SPY | 610,400 | $406.6M | 3.00% |
| 10 | INVESCO QQQ TR | IVZ | 673,400 | $404.3M | 2.98% |
| 11 | TESLA INC | TSLA | 798,431 | $359.1M | 2.65% |
| 12 | WESTERN DIGITAL CORP | WDC | 76,409,000 | $350.6M | 2.59% |
| 13 | ALIBABA GROUP HLDG LTD | BBAAY | 192,109,000 | $298.7M | 2.20% |
| 14 | ELI LILLY & CO | LLY | 272,554 | $292.9M | 2.16% |
| 15 | ALPHABET INC | GOOG | 924,074 | $290.0M | 2.14% |
| 16 | VISA INC | V | 698,009 | $244.8M | 1.81% |
| 17 | JPMORGAN CHASE & CO. | VYLD | 713,195 | $229.8M | 1.69% |
| 18 | BOEING CO | BA-PA | 3,109,660 | $214.8M | 1.58% |
| 19 | WALMART INC | WMT | 1,478,905 | $164.8M | 1.22% |
| 20 | SPOTIFY USA INC | 84921RAB6 | 143,410,000 | $163.3M | 1.20% |