Calamos Advisors LLC CPSF CALAMOS ETF TR

Ownership history in Calamos Advisors LLC  ·  5 quarters on record

AI Ownership Summary

Calamos Advisors LLC reported CALAMOS ETF TR (CPSF) in 5 quarterly 13F filings from 2025 Q1 through 2026 Q1. Peak portfolio weight reached 0.04% in 2026 Q1. The latest visible filing shows CPSF at 0.04% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this CPSF ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Calamos Advisors LLC's position in CALAMOS ETF TR, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

CPSF was reported at 0.04% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.04% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Calamos Advisors LLC held CPSF — position size vs. price
% of Fund (quarterly)    CPSF price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 5 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED 425,943 +122,249 +40.3% 0.04% $10.9M 2026-05-04 $26.02
2025 Q4 ADDED 303,694 +31,762 +11.7% 0.03% $7.8M 2026-01-29 $25.74
2025 Q3 REDUCED 271,932 -2,229 -0.8% 0.03% $6.8M 2025-10-20 $25.23
2025 Q2 ADDED 274,161 +58,242 +27.0% 0.03% $6.7M 2025-08-08 $24.85
2025 Q1 INITIATED 215,919 0.02% $5.1M 2025-04-29 $23.91

FAQ About Calamos Advisors LLC and CPSF

These are the practical questions this page is built to answer before you even open the full history table.

How long has Calamos Advisors LLC reported owning CPSF?

Calamos Advisors LLC reported CPSF across 5 quarterly 13F filings, from 2025 Q1 through 2026 Q1.

What was the largest reported CPSF position in Calamos Advisors LLC's portfolio?

The largest reported portfolio weight for CPSF was 0.04% in 2026 Q1.

What is the latest reported CPSF position on this page?

The most recent filing on this page is 2026 Q1, when Calamos Advisors LLC reported 425,943 shares, equal to 0.04% of portfolio, with an estimated market value of $10.9M.

What does the chart on this CPSF ownership page compare?

The chart compares Calamos Advisors LLC's quarterly CPSF portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Calamos Advisors LLC time their CPSF position?

Based on 13F filing dates vs. subsequent CPSF price moves, Calamos Advisors LLC correctly timed 3 out of 4 reported position changes (75%). The annualised alpha on CPSF relative to SPY over the holding period was -16.7%.

← Back to Calamos Advisors LLC Holdings