Expion360 is trading 12.1% down now at $4.66 as higher crude oil prices and Treasury yields weighed on equity valuations on September 23, 2026. - The Nasdaq and S&P 500 also declined amid broad market weakness. - No new company-specific announcement was identified for September 23; the latest investor-relations updates were dated August 31. - Earlier reports highlighted revenue declines and liquidity concerns, but these are background risks, not a confirmed catalyst today.