A brief description on NUSI from Nationwide website:
"NUSI offers an innovative approach to traditional income investing by employing a dynamic, risk-managed, net credit collar." Traditionally, an options collar involves selling a covered call option, which limits upside, while simultaneously purchasing a protective put option, which limits downside, for a zero-cash outlay. NUSI's objective to employ a "net credit collar" strategy, however, implies they'll receive more income from selling call options than it costs them to buy the put options, which is how it achieves its high yield.
Compared to
$Global X Nasdaq 100 Covered Call ETF (QYLD.US)$ which offers ~11% Dividend through Covered Call option strategy, NUSI offers downside protection by buying protective puts.
In ths current volatile and unclear market condition, I will continue to invest in NUSI while observing and waiting on the sideline for the long bull to return.