Cooper Companies (COO) experienced a surge in short-selling activity on October 28, 2026, according to FINRA Reg SHO data. The off-exchange short volume ratio was recorded at 50.4%, which is 1.9 standard deviations above the stock's 20-session average. This spike in daily short volume flow reflects significant intraday pressure. While this does not necessarily imply a change in total open short interest, the elevated ratio compared to historical norms suggests that market participants were aggressively marking trades as short throughout the session. Analysts tracking the medical device sector should monitor whether this flow translates into sustained bearish positioning in the upcoming bi-monthly FINRA short interest reports.
Signal data sourced from Kresmion. This post is an original analysis prepared by The Forensic Ledger from publicly available data. Not investment advice.
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