BlackRock reports holding half of Calamos’ Series H preferreds. Calamos Convertible Opportunities & Income (NASDAQ: CHI) files a passive stake.
BlackRock reports owning 345,000 shares (50%) of Calamos Convertible Opportunities & Income Fund's (CHI) Series H preferred shares, with shared voting and dispositive power. Other institutions also hold significant stakes. The filing details ownership structure and compliance with SEC regulations.
How this was made
The 30-second read
Why it matters
The disclosure provides transparency on voting power and potential influence over fund decisions, useful for shareholders and analysts.
Market read
Primary disclosure of a large institutional stake in a listed fund, relevant for fund investors and analysts monitoring ownership concentration.
What to watch
Potential future changes to the fund's capital structure or redemption terms could affect share price.
Background
Schedule 13G filings disclose passive ownership stakes exceeding 5% for institutional investors. This filing reveals BlackRock's 50% ownership of a specific class of preferred shares in CHI.
Ticker impact
BlackRock Portfolio Management LLC disclosed beneficial ownership of 345,000 Series H preferred shares, representing 50% of the class, in a Schedule 13G filing.
Limited immediate price impact; potential for future influence on fund governance and capital structure.
The filing is a primary disclosure of a substantial ownership position in a listed fund, which is material but does not directly alter cash flows.
Market effects
Highlights concentration of ownership in convertible fund preferred securities, relevant for investors tracking institutional holdings in the asset‑management sector.
U.S. market focus; no broader regional effect.
Limited to investors in the fund and its underlying holdings.
Counterpoint
The stake may signal BlackRock's confidence in the fund's preferred structure, but could also indicate a strategic move to influence future capital calls.
Key entities
- institutional investorBlackRock Portfolio Management LLC
Beneficial owner of 345,000 Series H preferred shares of CHI.
- investment fundCalamos Convertible Opportunities & Income Fund
Issuer of Series H Mandatory Redeemable Preferred Shares (ticker CHI).


