# Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers — retained record

> Retained news record from news:marketwatch.

Canonical: https://highsignal.app/data/records/38af324075bb1696

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source: [news](https://highsignal.app/data/news) (news:marketwatch)  published 2026-09-16 20:52 ingested 2026-09-17 02:49

[original source ↗](https://www.marketwatch.com/story/why-optical-stocks-lumentum-and-coherent-were-the-days-biggest-gainers-051af440?mod=mw_rss_topstories)

## retained text

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document fetched 2026-09-17 02:49 · canonical https://marketwatch.com/story/why-optical-stocks-lumentum-and-coherent-were-the-days-biggest-gainers-051af440?mod=mw_rss_topstories