Neuberger Berman Option Strategy ETF (NBOS) is an actively managed exchange-traded fund that employs a cash-secured put writing strategy on U.S. equity indices, including the S&P 500 Index and other indices in the S&P 500 suite, as well as exchange-traded funds, to seek long-term capital appreciation and current income; it collateralizes these options primarily with a portfolio of short-duration U.S. Treasuries, government agency bonds, investment-grade corporate bonds, mortgage- and asset-backed securities, structured notes, and cash equivalents, generating returns from option premiums and collateral interest income. The fund targets investors seeking risk-efficient returns with lower volatility than broad equity markets, aiming to outperform in flat or declining markets while capturing partial upside in rising markets, mitigate drawdown risk, and monetize sustained volatility and higher interest rates. NBOS operates within the options arbitrage and equity income segments of the liquid alternatives market, serving institutional and retail investors focused on portfolio diversification.
In a key strategic development, NBOS launched as an ETF on January 29, 2024, following the conversion and acquisition of assets and liabilities from its predecessor, the Neuberger Berman U.S. Equity Index PutWrite Strategy Fund, an open-end mutual fund that commenced operations on September 16, 2016; this transition assumed the predecessor's performance history, financials, and track record, bringing approximately $480 million in assets under management at inception and reducing the expense ratio to a net 0.56% from higher mutual fund levels. The ETF trades on NYSE Arca under ticker NBOS (CUSIP: 64135A705) and is issued and managed by Neuberger Berman Investment Advisers LLC, a subsidiary of Neuberger Berman Group LLC, headquartered in New York. As of late 2025, NBOS maintains assets under management of around $438-450 million, with a distribution rate exceeding 7-8% and exposure typically equaling 100% of assets in written put options, not exceeding 125%.