---
title: "Short selling in China's A-share market after the…"
description: "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?"
url: https://scholar4ai.com/ideas/short-selling-in-chinas-a-shares
markdown_url: https://scholar4ai.com/ideas/short-selling-in-chinas-a-shares.md
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
share_text: "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."
date: "2026-10-26"
updated: "2026-10-26"
status: "seed"
tags: ["finance", "china", "market microstructure"]
keywords: ["short selling", "short-selling constraints", "margin trading"]
---

# 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?

## 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.

## Related research activity

*The keywords this note follows, in the tracked finance, accounting, economics, management, operations research and AI journals as of 2026-10-26*

| Keyword | Papers, last 30 days | Rank | Papers per month, Oct 23 – Oct 26* | Papers, last 36 months |
|---|---:|---:|---|---:|
| short selling | 0 | – | 2, 1, 0, 5, 1, 5, 3, 3, 3, 2, 6, 3, 2, 7, 3, 2, 1, 4, 1, 2, 2, 2, 6, 2, 0, 3, 1, 2, 3, 3, 1, 1, 1, 1, 4, 1, 0 | 89 |
| short-selling constraints | 0 | – | 3, 4, 1, 0, 1, 2, 4, 3, 1, 1, 2, 3, 0, 2, 2, 0, 1, 1, 0, 0, 0, 2, 2, 4, 3, 3, 0, 5, 2, 0, 2, 2, 0, 3, 2, 1, 0 | 62 |
| margin trading | 0 | – | 1, 0, 1, 2, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0 | 15 |

## 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

```bibtex
@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}
}
```

License: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/).