The likes of Lumentum Holdings (LITE), Ciena (CIEN) and Corning (GLW) all have optical businesses, and their shares all rank within the top 10 performers in the S&P 500 SPX so far this year. Now, there's a new exchange-traded fund focused on the optical theme. Optical transceivers are one of the most demand-certain links in that chain — without optics, you cannot wire up a 100k-GPU cluster. Discover the best Optical Components stocks and ETFs to buy now. 6T technology is entering a period of explosive mass production. Optical Module Chip Market size was valued at US$ 823 million in 2024 and is projected to reach US$ 1. 52 billion by 2032, at a CAGR of 8.