TECH

China Optical Module Stocks Slump Despite Surging Earnings

Published: Oct. 30, 2026 1:36 p.m. GMT+8

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China’s three leading optical module manufacturers reported strong earnings growth in the first three quarters of 2026 driven by the global AI boom, but that could not stop their stock prices from plunging.

The situation highlights mounting investor anxiety over whether massive AI infrastructure spending by global technology giants will translate into sustainable returns for upstream suppliers.

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Chinese optical module makers report strong Q1-Q3 2026 earnings, but stocks plunged over 56% from June-July peaks.
Investors worry AI infrastructure spending may not yield sustainable supplier returns; Zhongji Innolight's Q3 profit growth slowed.
Eoptolink and TFC show cash flow drops and inventory surges; firms launch buyback plans to bolster confidence.

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Who’s Who

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What Happened When

First half of 2026：: Zhongji Innolight's third-quarter net profit growth of 173.7% marked a slowdown from this period.

First three quarters of 2026：: China's three leading optical module manufacturers reported strong earnings growth.

Between June and July 2026：: Share prices of Zhongji Innolight, Eoptolink, and TFC reached their highest levels.

Mid-June 2026：: Zhongji Innolight's share price peaked at 1,415.7 yuan.

Third quarter of 2026：: ZO Digital Economy Fund reduced its share holdings in Zhongji Innolight by 35.3%.

October 23, 2026：: TFC announced a 100 million yuan to 150 million yuan repurchase program, its first cash buyback since going public.

October 30, 2026：: Share prices of Zhongji Innolight, Eoptolink, and TFC dropped 8.5%, 11.1%, and 19.8%, respectively.

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