Calamos Advisors LLC reported 980 equity positions with a combined reported value of $30.07B in its Q2 2026 Form 13F filing. The ten largest of those positions account for 28.4%of the filing’s reported value.
| # | Security | CUSIP | Class | Reported value | Shares | Weight |
|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | 67066G104 | COM | $1.41B | 7.06M | 4.70% |
| 2 | APPLE INC | 037833100 | COM | $1.14B | 3.93M | 3.78% |
| 3 | CALAMOS ETF TR | 12811T514 | TAX AWA COLL ETF | $1.08B | 10.69M | 3.58% |
| 4 | WESTERN DIGITAL CORP | 958102AT2 | NOTE 3.000%11/1 | $825.1M | 48.73M | 2.74% |
| 5 | STATE STR SPDR S&P 500 ETF T | 78462F103 | TR UNIT | $810.8M | 1.25M | 2.70% |
| 6 | MICROSOFT CORP | 594918104 | COM | $762.8M | 2.05M | 2.54% |
| 7 | ALPHABET INC | 02079K305 | CAP STK CL A | $721.7M | 2.02M | 2.40% |
| 8 | AMAZON COM INC | 023135106 | COM | $713.0M | 2.99M | 2.37% |
| 9 | STATE STR SPDR S&P 500 ETF T | 78462F103 | TR UNIT | $554.9M | 853K | 1.85% |
| 10 | BROADCOM INC | 11135F101 | COM | $519.3M | 1.37M | 1.73% |
The full 980-position filing, quarter-over-quarter position changes, concentration analysis and cross-fund security search are in the Fund Tracker dashboard.
Open Fund TrackerRock Group holds Calamos Advisors LLC’s 13F filings for Q2 2026, Q1 2026, Q4 2025, Q3 2025, Q2 2025, Q1 2025, Q4 2024, Q3 2024. Period-over-period comparison — positions added, exited and resized — is available in the dashboard.
Browse all 13F filers on file, or read the Fund Tracker documentation for what Form 13F does and does not disclose.