Ciena Corporation (CIEN) recently announced its board of directors' decision to buy back up to $1 billion worth of its common stock, commencing in fiscal 2025 and extending through the end of fiscal 2027. Investors cheered the development leading to a 7.4% jump in CIEN's stock price in the last trading session. The new authorization comes at a time when the company approaches the completion of its existing repurchase program, which has run successfully for the past three years. In the last reported quarter, ...