The Neuberger Berman U.S. Equity Index PutWrite Strategy Fund Class C (NUPCX) is a mutual fund that focuses on investing in U.S. equity index options contracts. This strategy involves writing (selling) put options on a selected equity index, with the goal of generating income and potentially reducing volatility in the fund's returns. The fund is managed by Neuberger Berman, a global investment management firm, and is classified as a Class C fund, which typically has higher expense ratios but may offer lower initial investment requirements.