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Calamos Convertible Opportunities & Income Fund
John Calamos, Sr.’s 2002 closed-end fund CHI harvests convertible-bond upside with an options overlay that few competing vehicles replicate.
Calamos Convertible Opportunities & Income Fund
John P. Calamos, Sr. established Calamos Asset Management in the late 1970s, building a niche converting military-aviation experience into options-based risk management long before downside protection became an industry catchphrase. The Convertible Opportunities & Income Fund (NASDAQ: CHI) launched in June 2002, embodying his conviction that convertible securities — hybrid instruments offering bond-like income and equity-like appreciation — deserve a dedicated, actively managed vehicle. The fund exists within a publicly traded structure that shareholders can buy and sell like a stock, distinct from the open-end mutual funds the firm also operates. CHI pursues high current income alongside capital appreciation by allocating primarily to a diversified pool of convertible bonds and convertible preferred stocks. The fund’s mandate permits high-yield corporate bonds, U.S. government securities, and equity sensitivity through written call options on individual stocks and equity indices; the objective is to capture a significant portion of equity market upside while crediting a monthly distribution. Public filings confirm concentrations in technology, healthcare, and consumer-discretionary convertibles, with names like Palo Alto Networks, Uber Technologies, and MicroStrategy appearing in recent quarterly disclosures, reflecting the fund’s willingness to engage with growth-linked issuers that carry volatility frequently exploited by Calamos’s option-writing overlay. Calamos Investments reported roughly $38 billion in firm-wide assets under management as of March 2025, distributing operations between its Naperville, Illinois headquarters and additional investment-professional hubs in Miami, New York, and London (per the firm’s official communications, 2025). The firm itself is publicly listed (NASDAQ: CLMS) and houses multiple closed-end funds, mutual funds, ETFs, and separately managed accounts that share a common DNA: pairing fundamental security selection with systematic options strategies. CHI remains one of the firm’s longest-running closed-end offerings, and as of early 2026, the fund’s distribution rate has been supported by a managed distribution policy that may include return of capital in some periods — a feature disclosed in shareholder reports and typical of the structure. What distinguishes CHI from generic convertible-bond ETFs is Calamos’s refusal to passively track a broad convertibles index. The team, led by John Calamos, Sr. as Global CIO, evaluates each convertible on its underlying equity fundamentals, bond-floor actuarial math, and the call-spread opportunity the instrument presents for covered-call writing. This double layer — convertible arbitrage baked into the instrument plus an explicit options-overlay on the fund — creates an income-generating architecture that sits somewhere between a traditional balanced fund and an absolute-return vehicle, a design few competing closed-end funds replicate at scale.
General information
Firm type
Asset Manager
Year founded
2002
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Naperville
Corporate office
Naperville, IL, United States
Principals
John P. Calamos, Sr.
Chairman and Global Chief Investment Officer
Sector focus
Frequently asked questions
Who makes the day-to-day investment decisions for CHI?
John P. Calamos, Sr., Chairman and Global Chief Investment Officer, leads the investment team alongside a dedicated group of convertible analysts and portfolio managers at Calamos Investments. The team evaluates each convertible security on its underlying equity fundamentals, credit quality, and embedded optionality. The firm’s Naperville-based investment floor has executed this process for convertible mandates since the late 1970s, making it one of the longest continuously operating convertible-management teams in the U.S.
What does the fund actually hold?
CHI holds a diversified pool of convertible bonds and convertible preferred stocks, with flexibility to own high-yield corporate bonds and write covered-call options on individual stocks and equity indexes. Recent public filings show weightings tilted toward technology and healthcare issuers. Convertible holdings have included names like Palo Alto Networks, Uber Technologies, and MicroStrategy, representing the high-volatility growth companies whose convertible issuances the fund frequently exploits for their equity-linked upside and bond-floor protection.
How is CHI different from a plain convertible-bond ETF?
CHI is actively managed rather than index-tracking, and the Calamos team writes call options on top of the underlying convertible portfolio, layering an additional income stream and risk-management tool onto the securities. Where a passive ETF simply delivers the return of a convertibles index minus fees, CHI can adjust credit quality, delta exposure, and option-overlay aggressiveness in response to market conditions. The structure permits high-yield bonds and government securities when convertibles look unattractive.
What should an allocator watch for regarding the distribution?
CHI uses a managed distribution policy, meaning the monthly payout may include return of capital in addition to net investment income and realized capital gains. Periods where return of capital constitutes a significant portion of the distribution should be analyzed via the fund’s Section 19(a) notices, which break down the distribution’s sources. The policy aims to provide a steady monthly income stream, but the composition of that stream fluctuates with market conditions and option-premium income generated by the overlay.
How does the parent firm make money from CHI?
Calamos Advisors LLC, the fund’s investment adviser, earns a management fee based on CHI’s average weekly managed assets. The fee schedule is disclosed in the fund’s annual report and is typical of closed-end fund adviser arrangements, creating an incentive for the adviser to grow or maintain asset levels. As a publicly traded firm (NASDAQ: CLMS), Calamos Investments’ revenue from CHI and its sibling closed-end funds contributes to the parent company’s reported top line.
What is the firm’s broader relationship to the convertible market?
Calamos was among the earliest dedicated convertible managers, launching its first convertible strategy in the late 1970s. The firm now runs convertible mandates across multiple closed-end funds, open-end mutual funds, and ETFs. CHI is one of several closed-end siblings — including Calamos Convertible and High Income Fund (CHY) and Calamos Dynamic Convertible and Income Fund (CCD) — each differentiated by the aggressiveness of its equity sensitivity, credit quality, and option-overlay intensity.
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