CEAT shares plunge 7% after Nomura downgrade and weak Q1 results, citing export headwinds and rising crude-driven margin risks.

• Stock extends five-day slide, hitting lowest since April 7; down 8.5% on Thursday post-earnings miss.
• Nomura cuts rating to "neutral", flags flat exports and crude price pressure on margins.
• Despite the fall, CEAT is up 11% YTD; 19 analysts still rate it “buy” with a ₹3,890.5 median price target.