Innovator S&P 500 Ultra Buffer ETF (UAUG) Trades Near Flat Amid Market Volatility The Innovator S&P 500 Ultra Buffer ETF (UAUG) closed at $33.40 on April 17, down 0.09%. UAUG provides downside protection and limited upside in volatile markets. Recent AI-generated signals rate UAUG as neutral for near, mid, and long-term outlooks, reflecting cautious sentiment among institutional traders.3456