Ciena Corporation's stock experienced a significant decline of 5.03% during intraday trading on Friday. The networking equipment provider was caught in a broader market selloff affecting optical and communication equipment stocks.

The decline comes despite Stifel raising its price target on Ciena to $615 from $585 and maintaining a Buy rating on the shares. Analysts noted that optical stocks broadly faced pressure, with several peers also trading lower during the session.

Market participants are also focusing on Ciena's upcoming quarterly earnings report scheduled for next week. The stock has been identified among those exhibiting "sawtooth" earnings volatility patterns, where implied volatility typically increases heading into earnings announcements before plunging afterward. This pattern often leads to heightened price swings around earnings periods as investors adjust positions ahead of the financial results.