Smithfield Foods is trading at $28.80, up 47.24%, after-hours, with no credible company-specific explanation identified for the move. - Shares closed at $19.56 on September 22, 2026. - The latest material update remains the September 8 outlook warning of a potential $70 million–$90 million third-quarter Fresh Pork operating loss. - The Nasdaq rose 0.62% while the S&P 500 and Dow declined; treat the isolated surge as unconfirmed and potentially data-related pending further disclosures.