Calamos Advisors LLC Increases Stake in SPDR S&P 500 ETF Trust (SPY) by 22.2%
Calamos Advisors LLC, a registered investment adviser, increased its position in SPDR S&P 500 ETF Trust (AMEX:SPY) by 22.2% during Q3 2026, according to its most recent 13F filing…
SPDR S&P 500 ETF Trust (AMEX:SPY) · position increase
Institution
Calamos Advisors LLC
Institution type
investment_adviser
Reporting period
Q3 2026
Shares
1,523,900
Position value
$1.1B
Position change
22.22%
At a glance
Key takeaways
01Calamos Advisors LLC increased its SPY position by 22.2% in Q3 2026, adding 277,100 shares to reach 1,523,900 shares worth approximately $1.1 billion.
02SPY trades at $753.73 with a $724.7 billion market capitalization as of the filing date.
0313F filings reflect holdings as of quarter-end and are filed up to 45 days later, so positions may have changed since the reported date.
04Institutional position increases typically signal conviction in upside potential or improved fundamentals, though they should be analyzed with other signals like insider trades and analyst ratings.
Filing Details
Calamos Advisors LLC, a registered investment adviser, increased its position in SPDR S&P 500 ETF Trust (AMEX:SPY) by 22.2% during Q3 2026, according to its most recent 13F filing with the Securities and Exchange Commission.
The firm purchased an additional 277,100 shares of the Financial Services company, bringing its total holdings to 1,523,900 shares valued at approximately $1.1B as of the filing date.
Market Context
SPDR S&P 500 ETF Trust's stock currently trades at $753.73 with a market capitalization of $724.7B.
An increase in an existing position suggests Calamos Advisors LLC has growing conviction in SPDR S&P 500 ETF Trust's trajectory. Institutional investors typically add to positions when they believe the stock still has upside relative to their price target, or when the company's fundamentals have improved since their initial purchase.
Financial sector holdings are closely tied to interest rate expectations and economic outlook. Institutional moves in SPDR S&P 500 ETF Trust may reflect broader views on credit conditions and banking sector profitability.
The size of this position — $1.14 billion — places it among the more significant institutional holdings in SPDR S&P 500 ETF Trust. Large positions like this can influence trading dynamics and are closely watched by market participants tracking smart money flows.
Investors should note that 13F filings reflect holdings as of the end of the reporting quarter and are filed up to 45 days later. The position may have changed since the filing date. 13F data is most useful when analyzed alongside other signals such as insider transactions, analyst ratings, and fundamental trends.
A 13F filing is a quarterly SEC report required for institutional managers with over $100 million in assets. It discloses equity holdings, providing transparency into how firms like Calamos Advisors LLC position their portfolios.