Ciena's Rerating Looks Priced for Perfection — Consider a Tactical Short
Ciena has re-rated sharply on AI/data-center enthusiasm: revenue and earnings acceleration plus a $7 billion backlog have driven the stock to roughly $590 and a market cap near $83 billion. Fundamentals are improving, but valuation metrics - P/E near 350-360x, EV/EBITDA north of 200x and EV/Sales ~16x - imply expectations that leave little margin f…