# Google’s cash burn drags down AI optics suppliers by 10-15%

Digest AI · Hardware & Compute · published 2026-10-30T10:57:00Z

Canonical: https://digestai.news/story/googles-cash-burn-drags-down-ai-optics-suppliers-by-10-15

## Summary

Google’s $9.1 billion quarterly cash burn—double analyst expectations—sent shockwaves through AI optics suppliers this week. Applied Optoelectronics, Coherent, Lumentum, and Marvell all saw their stocks tumble 10% to 15%, reflecting investor concerns about hyperscaler spending cuts. These firms supply lasers, transceivers, and optical chips critical to AI data centers, with hyperscalers like Google accounting for 99% of Applied Optoelectronics’ Q2 revenue, per the company’s own figures. Despite profit-taking after strong year-to-date gains (93% for Applied Optoelectronics, 124% for Lumentum), demand remains robust, with Lumentum’s CEO calling its optical components sold out through early 2029 and Applied Optoelectronics reporting production constraints through mid-2027.

The selloff also highlights overlapping risks: Coherent’s CEO dismissed demand slowdowns, while Marvell’s potential $350 million acquisition of Lumentum—reported by Bloomberg—adds uncertainty. Marvell, a custom AI chip supplier to Google, faces dual pressures: hyperscaler spending fears and its own stock volatility (up 133% YTD). Analysts warn that any further pullback by Google or peers could disproportionately hurt these concentrated suppliers, whose stocks swing more sharply than those of the hyperscalers themselves.

## Key points

- Google’s $9.1B cash burn—double expectations—triggered 10-15% drops in AI optics stocks (Applied Optoelectronics, Coherent, Lumentum, Marvell)
- Hyperscalers like Google account for 99% of Applied Optoelectronics’ Q2 revenue, per company’s own data
- Lumentum’s optical components sold out through early 2029; Applied Optoelectronics faces production constraints until mid-2027

## Why it matters

AI data centers rely on these optics firms for critical hardware, and their stock volatility signals investor anxiety about hyperscaler spending cuts. A downturn could disrupt supply chains and force suppliers to delay expansions or cut costs, affecting AI infrastructure investments.

## Sources

1. [Applied Optoelectronics Plunges 15%, Coherent Tumbles 13% as Hyperscaler Spending Fears Hit AI Optics Stocks; Lumentum and Marvell Sink 10%](https://247wallst.com/investing/2026/10/30/applied-optoelectronics-plunges-15-coherent-tumbles-13-as-hyperscaler-spending-fears-hit-ai-optics-stocks-lumentum-and-marvell-sink-10) (247wallst.com, 2026-10-30)

## Cite

Digest AI, "Google’s cash burn drags down AI optics suppliers by 10-15%", 30 October 2026, https://digestai.news/story/googles-cash-burn-drags-down-ai-optics-suppliers-by-10-15

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