MST is trading 4.04% lower at $16.57 as broader risk-off pressure hit U.S. equities on September 23, 2026. - Nasdaq Composite fell 1.17%; higher crude oil and Treasury yields renewed inflation and valuation concerns. - No new MST-specific announcement or earnings catalyst was identified. MST is the Defiance Leveraged Long + Income MSTR ETF. - The decline follows gains of 27.07% on September 18 and 16.42% on September 21, with continued volatility and profit-taking risk.