Nano Nuclear Energy is trading at $12.56, down 5.78% in live trading, amid broad risk-off sentiment. - The S&P 500 fell 1.38% and the Nasdaq 2.31%; reporting also cited renewed AI-spending concerns and rising oil prices. - On October 22, Truist maintained a Hold rating and lowered its price target from $22 to $19; reporting does not establish this as the direct cause of the decline. - The October 21 IMPSA agreement was positive prior news, not a clear explanation for the drop.