Wall Street Zen Downgrades SAB Biotherapeutics and SURO Capital to Sell
Wall Street Zen has issued 'Sell' ratings for both SAB Biotherapeutics and SURO Capital, signaling a shift in sentiment for high-risk biotech and venture-backed assets. These downgrades reflect growing analyst caution regarding clinical-stage development timelines and private equity valuation gaps in the 2026 market environment.