Four Chinese AI-optics makers announced same-night buybacks; the smallest is 0.06% of Suzhou TFC's value

On the evening of October 15, four of China's AI-hardware leaders filed capital-return plans within hours of each other↗ ¹. It was the day the CSI 300, China's benchmark large-cap index, closed at a 14-month low ². The largest came from Zhongji Innolight▲+1.99% — Zhongji Innolight, up 1.99 percent today, the optical-module maker ranked the 10th-biggest China-listed stock by market value: a October 29 board meeting to cancel its entire September repurchase, 5.6531 million shares bought for 4.997 billion yuan, 0.48% of shares outstanding, originally meant for employee incentive plans ¹³.

The smallest came from Suzhou TFC Optical Communication▼−4.71% — Suzhou TFC Optical Communication, down 4.71 percent today, whose controlling shareholder, Suzhou Tianfu Renhe Investment Management, proposed buying back 100 to 150 million yuan of its Shenzhen-listed A-shares and canceling them all, at up to 350 yuan a share ¹. Eoptolink chairman Gao Guangrong proposed 800 million to 1 billion yuan, and memory-chip maker Biwin Storage's chairman Sun Chengsi 200 to 250 million, both also to be canceled ¹⁴.

Earnings are growing as the shares fall

Nothing in the earnings explains the rush. TFC's first-half net profit rose 33.92% to 1.204 billion yuan on revenue of 2.828 billion ¹. Innolight made 5.74 billion yuan in the first quarter alone, up 262% ⁵. Peer Advanced Fiber Resources guided nine-month profit up 142 to 162% on AI data-center demand ¹.

The market sold anyway. TFC fell 7.17% to 229.00 yuan on October 14↗ and closed at 223.33 the next day, up 54% this year, against a nine-analyst average target of 321.64 yuan, 44% above the price ⁶⁷.

A draft US ban hangs over the shares

The overhang is Washington. Reuters reported on August 4↗ that the Trump administration was drafting a ban on new Chinese optical transceivers, the fiber-optic modules that link servers inside AI data centers; Innolight, which drew 62% of first-quarter revenue from the US, and Eoptolink, at 96% from overseas, each fell about 10%, and TFC about 6% ³.

A September ruling by the US Federal Communications Commission↗ spared the modules ⁸, but Chinese suppliers still held 60% of global optical datacom transceiver revenue in 2025 ⁸, and Thursday's selloff in AI shares on worries about infrastructure spending and borrowing costs did the rest ².

The sums are too small to hold the price

The pledges are thin against what they defend. TFC's maximum is 0.06% of the 249.8 billion yuan market value it carried on October 14 ⁶; even at the 350-yuan ceiling it would retire about 0.04% of shares outstanding ¹⁶. Innolight's cancellation commits no new cash: the stock was bought in September, 4.997 billion yuan over 5.6531 million shares, an average near 884 yuan ¹.

Huafu Securities, a Chinese broker, says the leaders' drawdown is near its historical average and cautions that history cannot represent the future ¹. Regulators have urged companies and state funds to buy shares while guiding some investors to curb selling, Bloomberg News reported on Friday ².

One newswire sized TFC's plan at "up to 15 million yuan"↗, a tenth of the announced 100 to 150 million ⁷¹.

October 29 prices the promises

The calendar stacks the tests. Innolight's board votes on the cancellation on October 29, the day TFC reports third-quarter results ¹⁷. Eoptolink follows on October 30, its shares down 18.91% over five days against an average analyst target 112.6% overhead ⁹.

Corporate cash is defending the prices, so holders of the AI-optics premium, in Shenzhen or in US module makers such as Lumentum▼−5.11% — Lumentum, down 5.11 percent today and Coherent▼−7.02% — Coherent, down 7.02 percent today ⁵, carry the risk if the pledges prove too small. Watch the spread between TFC's 223-yuan close and its 321-yuan target: it narrows if third-quarter earnings deliver, and it widens on the next Washington headline.