Investors Pivot to Chinese Equity Derivatives as Crowded AI Trades in Korea, Japan Lose Allure

Investors are increasingly turning to Chinese equity derivatives to diversify away from crowded artificial intelligence trades in South Korea and Japan, with trading desks at Barclays, UBS Group and Bank of America all reporting a sharp uptick in client demand for bullish options and swap contracts tied to China’s CSI indexes.

The shift reflects growing unease about valuations and return expectations in some of the most crowded global equity themes, according to Kaanhari Singh, head of Asia Pacific equity-flow derivatives sales at Barclays. “We’ve seen growing investor interest in China A-share upside strategies in recent months,” Singh said. “Part of this reflects investors looking to diversify sources of equity returns as questions emerge around valuations and return expectations in some of the market’s most-crowded themes globally.”

At Barclays, the desk is seeing rising client interest in call spreads on onshore indexes, with many positioning for a gradual climb rather than a sharp rally. Outperformance trades tied to the CSI 300 and CSI 500 indexes are also compelling versus recent history, Singh added.

UBS’s sales and trading desk noted on August 30 that the largest weekly derivatives flow across Asia came from bullish bets on China’s CSI indexes. The bank saw multiple sizable requests for long swaps concentrated in the CSI 300 and CSI 500, along with upside option structures. In a recent report, UBS highlighted the CSI 500 as an alternative AI bet for investors looking to diversify their exposure.

Bank of America’s Lars Naeckter, head of Asia Pacific equity-derivatives research, said the current environment makes derivative bets particularly attractive. “It’s an ideal trade now because people are a bit on edge,” Naeckter said. He recommends call spreads on the CSI 1000. “Rather than piling into cash equities or futures, options make sense, especially when pricing is in your favour. At some point, a catalyst will emerge, and it is often cheaper to be tactically proactive ahead of a move rather than reactive.”

The renewed interest in Chinese onshore equities is underpinned by several fundamental drivers, according to BNP Paribas and Bank of America. These include ongoing capital-market reforms that support a gradual bull market, advances in self-reliant technology and an improving earnings outlook across hardware sectors.

Technology has become the highest-weighted sector for the CSI 300 Index, and its weight has also increased for the mid- and smaller-cap CSI 500 and CSI 1000 gauges, BNP Paribas noted. The government’s push for the industry’s self-reliance is helping attract investors.

“China onshore offers a very different exposure to AI due to the nation’s own ecosystem. So there is a natural diversification compared to the global AI trade,” said Jason Lui, BNP Paribas’ head of Asia-Pacific equity and derivatives strategy. “Now, having that more well-contained volatility profile also encourages more medium-term asset allocation from both domestic and international institutional investors.”

Implied volatility for Chinese equity options has slumped back toward its one-year average, making derivative bets more appealing. The CSI 1000 Index, up after posting its worst monthly loss since 2016 in July, is still 16% below its high in May, reflecting lingering caution.

Traders remain wary about China’s economic outlook and the level of government support. Yet the combination of lower options prices, improving fundamentals and the need to diversify away from overcrowded AI trades in South Korea and Japan is drawing money into the region.

In the United States, a trader on September 4 bought a large block of bullish calls on the KraneShares CSI China Internet Fund, betting the ETF would return to prices seen earlier in 2026.

The pivot to Chinese derivatives is still in its early stages, and sustained buying will depend on further catalysts. But as one bank after another flags the trade, the flow data suggests institutional investors are already positioning for a move higher in China’s A-share market as an alternative to the AI-fueled rallies that have dominated Asia.