Lumentum Joins Nasdaq 100! Buy the Passive Inflow or Take Profits?
Lumentum surged 16.5% today, with the primary catalyst being its official inclusion in the Nasdaq 100 index, as passive tracking purchases from index funds and ETFs concentrated on the rebalancing date. The photonics sector has seen valuation re-rating driven by AI data center optical interconnect demand, and index inclusion further amplified institutional inflow scale. Once the rebalancing is complete, passive buying will gradually fade, making fundamental self-sufficiency the core question for the stock. Is LITE still worth holding after the index inclusion effect is absorbed?