A closed-end fund is an investment pool that raises a fixed amount of money by issuing a set number of shares, which then trade on an exchange like stocks. Unlike bank-style mutual funds that buy or sell shares on demand, its market price can sit above or below the fund’s per-share value of holdings (like a used-car market price versus the sticker price), so investors should watch both the traded price and the underlying asset value for potential bargains or risks.
covered callfinancial
A covered call is an income strategy where an investor who already owns shares sells the right for someone else to buy those shares at a set price within a set time. Think of it like renting out a house: you collect steady rent (the option premium) but agree to sell if a buyer pays the agreed price, so you trade some upside potential for immediate income and a small cushion against modest drops in the stock.
buy-writefinancial
A buy-write is an income-focused strategy where an investor owns a stock and sells call options — agreements that give someone else the right to buy that stock at a set price within a time period. It’s like collecting rent from a property you own while agreeing you might have to sell it at a fixed price; this generates extra cash and cushions small drops, but it also limits the upside if the stock jumps sharply.
overwritefinancial
To overwrite is an options strategy where an investor sells call options on shares they already own, collecting premium income while agreeing to sell those shares at a set price if the buyer exercises the option. It matters because it can boost short‑term income and reduce the effective cost of holding a stock, but it also limits upside potential and can result in the shares being called away if the stock rallies above the agreed price.
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CHICAGO--(BUSINESS WIRE)--
The mergers of Nuveen S&P 500 Buy-Write Income Fund (NYSE: BXMX) and Nuveen Dow 30℠ Dynamic Overwrite Fund (NYSE: DIAX) into Nuveen S&P 500 Dynamic Overwrite Fund (NYSE: SPXX) were successfully completed prior to the opening of the New York Stock Exchange on March 30, 2026.
Through the mergers, a wholly-owned subsidiary of SPXX acquired substantially all of the assets and liabilities of BXMX and DIAX in tax-free transactions, and common shares of each of BXMX and DIAX were converted to newly-issued common shares of SPXX in an aggregate amount equal to the value of each Fund’s net assets. The transactions took place based upon the closing net asset values of the Funds on March 27, 2026. The exchange ratios at which common shares of BXMX and DIAX were converted to common shares of SPXX are listed below:
Ticker
Fund Name
Exchange Ratio
BXMX
Nuveen S&P 500 Buy-Write Income Fund
0.83966629
DIAX
Nuveen Dow 30℠ Dynamic Overwrite Fund
0.89021446
Nuveen is a leading sponsor of closed-end funds (CEFs) with $53 billion in assets under management across 44 CEFs as of 31 Dec 2025. The funds offer exposure to a broad range of asset classes and are designed for income-focused investors seeking regular distributions. Nuveen has more than 35 years of experience managing CEFs.
About Nuveen
Nuveen is a global investment leader, managing $1.4T in public and private assets for clients around the world, as of 31 Dec 2025. With broad expertise across income and alternatives, we invest in the growth of businesses, real estate, infrastructure, and natural capital, providing clients with the reliability, access, and foresight unique to our 125+ year heritage. Our prevailing perspective on the future drives our ambition to innovate and adapt our business to the changing needs of investors — all to pursue lasting performance for our clients, our communities, and our global economy. For more information, please visit www.nuveen.com. Nuveen Securities, LLC, member FINRA and SIPC.
The information contained on the Nuveen website is not a part of this press release.
Important information on risk
Past performance is no guarantee of future results. All investments carry a certain degree of risk, including the possible loss of principal, and there is no assurance that an investment will provide positive performance over any period of time. Certain products and services may not be available to all entities or persons. There is no guarantee that investment objectives will be achieved.
Closed-end funds frequently trade at a discount from net asset value (NAV). At any point in time, including when sold, shares may be worth more or less than the purchase price or the net asset value, even after considering the reinvestment of fund distributions. It is important to consider the objectives, risks, charges and expenses of any fund before investing.
