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SeedPublished 2026-10-26

Short selling in China's A-share market after the restrictions

Short selling and short-selling constraints appear on 56 recent papers, but only 10 of them carry a China keyword, although China restricted securities lending repeatedly in 2023 and 2024 to support prices. What did the restrictions do to price efficiency, liquidity and the overvaluation of hard-to-short stocks?

financechinamarket microstructure

What prompted this#

Since October 2025, 56 papers carry a short-selling, securities-lending or margin-trading keyword (47 in finance journals): "short-selling constraints" on 23, "short selling" on 21, "short-selling ban" on 5, "securities lending" on 5, "margin trading" on 4. Only 10 also carry a China or Chinese-market keyword, although China's securities lending rules changed several times in 2023 and 2024.

Questions#

  • After securities lending was restricted, did stocks that had been heavily shorted become more overvalued relative to fundamentals, and did their prices react more slowly to bad news?
  • Did the restrictions reduce volatility in falling markets, as intended, or only move bearish trading to index futures and options?
  • Did quantitative funds that relied on short positions shrink or move to other markets?

Data that could help#

Daily securities lending and margin balances by stock, the dates of rule changes, stock prices, earnings announcements and futures positions (CSMAR, Wind).

Next step#

Compare post-earnings drift and price reactions to bad news in stocks with high and low pre-restriction short interest, before and after each rule change.

The keywords this note follows, in the tracked finance, accounting, economics, management, operations research and AI journals as of 2026-10-26
KeywordPapers, last 30 daysRankPapers per month, Oct 23 – Oct 26*Papers, last 36 months
short selling0–89
short-selling constraints0–62
margin trading0–15

Markdown version of this note: /ideas/short-selling-in-chinas-a-shares.md

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Cite this page

Scholar4AI. (2026). Short selling in China's A-share market after the restrictions. Journal Research Rankings. Retrieved October 26, 2026, from https://scholar4ai.com/ideas/short-selling-in-chinas-a-shares

@misc{scholar4ai-ideas-short-selling-in-chinas-a-shares,
  author = {{Scholar4AI}},
  title = {Short selling in China's A-share market after the restrictions},
  year = {2026},
  howpublished = {\url{https://scholar4ai.com/ideas/short-selling-in-chinas-a-shares}},
  urldate = {2026-10-26},
  note = {Journal Research Rankings; data from OpenAlex (CC0); licensed CC BY-NC 4.0}
}

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