## Seasonalities in China's Stock Markets: Cultural or Structural?

_IMF Working Papers, January 1, 2006_

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## Bibliographic details
- Authors: Jason D. Mitchell, Li L Ong
- Published: January 1, 2006
- Series: IMF Working Papers
- DOI: https://doi.org/10.5089/9781451862645.001

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### Summary findings
- Examined returns in the Chinese A and B stock markets for evidence of calendar anomalies.
- Both cultural and structural (segmentation) factors play an important role in influencing the pricing of both A- and B-shares in China.
- There is some evidence of a February turn-of-the-year effect, partly owing to the timing of the Chinese Lunar New Year (CNY).
- The holiday effect around the CNY period is stronger and more persistent compared with the other public holidays.
- Segmentation between the two markets is apparent in the day-of-the-week effect:
  - B stock markets tend to post significant negative returns on Tuesdays, corresponding with overnight developments in the United States.
  - Significant negative returns are observed on Mondays in the A stock markets.
- Investment strategies based on some of these calendar anomalies, and allowing for transaction costs, suggest that the A stock markets tend to offer more economically significant returns.

### Evidence and patterns
- Calendar anomalies detected include:
  - February turn-of-the-year effect (linked partly to Chinese Lunar New Year).
  - Holiday effect concentrated and persistent around CNY.
  - Day-of-the-week effects differing by market segmentation (A versus B shares).
- Market segmentation interpretation:
  - Structural segmentation aligns B-share behavior with overnight U.S. developments (negative returns on Tuesdays).
  - A-share behavior shows a separate pattern with negative returns on Mondays.

### Investment strategy implications
- Back-tested strategies that exploit identified calendar anomalies and incorporate transaction costs indicate:
  - A stock markets generally provide more economically significant returns than B stock markets when anomalies are exploited.
- Practical considerations:
  - The timing of CNY should be considered when evaluating February and holiday-related returns.
  - Market segmentation implies that strategies cannot be uniformly applied across A- and B-share markets without adjustment for differing calendar sensitivities.

### Publication and metadata
- Authors: Jason D. Mitchell, Li L Ong
- Publication date: January 1, 2006
- Series: Working Paper No. 2006/004
- Issue: 004
- Volume: 2006
- Pages: 46
- DOI: https://doi.org/10.5089/9781451862645.001
- Stock No: WPIEA2006004
- ISBN: 9781451862645
- ISSN: 1018-5941
- Subject areas: Asset and liability management; Balance of payments; Financial institutions; Financial markets; Liquidity; Portfolio investment; Stock markets; Stocks
- Keywords: A stock market vis-à-vis; A-shares; A-shares participant; abnormal returns; Asia and Pacific; B market; B stock market; B stock share market; B-shares; Chinese Lunar New Year; day-of-the-week effect; half-month effect; half-year effect; holiday effect; January effect; Liquidity; market liquidity; North America; Northern Europe; Portfolio investment; rate of return; seasonalities; share price; Shenzhen B stock share market; Stock markets; Stocks; turn-of-the-year effect; WP

*IMF Working Paper — Seasonalities in China's Stock Markets: Cultural or Structural?*

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_Source: https://www.imf.org/en/publications/wp/issues/2016/12/31/seasonalities-in-china-s-stock-markets-cultural-or-structural-18720_