FINANCE

AI Frenzy Crowns Electronics as China’s Biggest Stock Sector

Published: Jul. 2, 2026 12:41 p.m. GMT+8

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An explosive AI rally propelled electronics past banking to become the largest sector in the Chinese mainland’s stock market in the first half of the year, underscoring a stark investment divide amid sluggish domestic demand.

Valued at 27.6 trillion yuan ($4.1 trillion) by the end of June, the electronics sector almost doubled the banking industry’s shrinking market capitalization of 14.6 trillion yuan.

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Electronics overtook banking as China's top stock sector, valued at 27.6 trillion yuan vs. 14.6 trillion yuan for banking by end of H1 2026.
Tech-heavy STAR 50 Index surged 64%, while consumer, real estate, and banking stocks fell by double digits.
Analysts like Huatai Securities expect the AI-driven rally to continue, as it is backed by earnings fundamentals.

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Explore the story in 3 minutes

1. In the first half of 2026, an explosive AI rally propelled the electronics sector past banking to become the largest sector in China’s mainland stock market. [para. 1] Valued at 27.6 trillion yuan ($4.1 trillion) by the end of June, the electronics sector nearly doubled the banking industry’s shrinking market capitalization of 14.6 trillion yuan. [para. 2] Electronics and telecom stocks dominated market liquidity, capturing nearly 30% of all trading volume. [para. 3]

2. This sector rotation drove a massive divergence among benchmarks. The tech-heavy STAR 50 Index soared about 64%, while the ChiNext Index rose 36%, the Shenzhen Component Index gained 20%, and the Shanghai Composite Index inched up just 3%. [para. 4] (chart data also supports these figures)

3. Standout performers included Cambricon Technologies Corp. Ltd. (688256.SH), which became the STAR Market’s first 1-trillion-yuan company, and optical testing equipment maker Semight Instruments Co. Ltd. (688808.SH), whose shares skyrocketed more than 2,700% following its market debut. [para. 5] The tech boom contrasted sharply with a broader slump in traditional industries, as consumer, real estate and banking stocks tumbled by double digits. [para. 6]

4. Looking ahead, analysts expect the AI-driven narrative to persist. Huatai Securities Co. Ltd. said that the tech rally may still have room to run, as it remains largely backed by earnings rather than valuation bubbles. [para. 7]

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Who’s Who

Cambricon Technologies Corp. Ltd.: Cambricon Technologies Corp. Ltd. (688256.SH) was a standout performer in China's AI-driven tech rally, becoming the STAR Market’s first company to reach a 1-trillion-yuan market capitalization.

Semight Instruments Co. Ltd.: Semight Instruments Co. Ltd. (688808.SH) is an optical testing equipment maker listed on China's STAR Market. Its shares skyrocketed over 2,700% following its market debut, making it a standout performer in the AI-driven tech rally.

Huatai Securities Co. Ltd.: Huatai Securities Co. Ltd. stated that the AI-driven tech rally in China's stock market may still have room to grow, as it is backed by earnings rather than valuation bubbles. This comment came amid a sector rotation where electronics surpassed banking as the largest sector.

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What Happened When

First half of 2026：: Electronics sector became the largest sector in China’s mainland stock market, valued at 27.6 trillion yuan, surpassing banking sector's 14.6 trillion yuan.

First half of 2026：: Electronics and telecom stocks captured nearly 30% of all trading volume.

First half of 2026：: The tech-heavy STAR 50 Index soared about 64%.

First half of 2026：: Cambricon Technologies Corp. Ltd. became the STAR Market’s first 1-trillion-yuan company.

First half of 2026：: Consumer, real estate, and banking stocks tumbled by double digits.

2026：: Semight Instruments Co. Ltd. shares skyrocketed more than 2,700% following its market debut.

AI generated, for reference only

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