CIEN is trading 5.6% down at $558.70 on profit-taking following a sharp multi-month rally and a broader market slide.
- Major indices are under pressure, with the Nasdaq sliding nearly 1.9% and the S&P 500 down 1.3%, weighing on high-momentum technology stocks.
- The decline appears driven by risk-off sentiment following the stock's ~90% surge over the last three months; there are no fresh company-specific headlines this morning.