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S&P 500 Gains & Losses Today: Ulta Beauty Stock Soars; Regeneron Shares Plummet

1. Regeneron Pharmaceuticals shares fell 19% after COPD treatment trial failure. 2. The failed trial did not meet primary endpoints in Phase 3. 3. Regeneron will review data and consult with regulators for next steps. 4. Sanofi, Regeneron's partner, saw a 5.7% drop in its shares. 5. S&P 500 mixed as President Trump's trade rhetoric and inflation data influenced markets.

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FAQ

Why Very Bearish?

Regeneron's significant drop follows disappointing trial results, reminiscent of past trial failures impacting biopharma stocks.

How important is it?

The failed COP treatment directly affects investor perception and financial outlook for REGN.

Why Short Term?

Investors typically react quickly to clinical trial results; similar past events caused immediate stock declines.

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