Testing Northbound Investor Holdings as an A-Share Selection Factor

Summary

This research summary studies mainland Chinese stocks held through the Hong Kong–mainland Connect programs. It compares the holdings’ industry and Barra-style factor exposures with the CSI 300 and CSI 500, then tests the proportion of a stock held by northbound investors as a stock-selection factor. The reported holdings resemble the CSI 300 more closely and show relative overweights in food and beverage, pharmaceuticals, and home appliances.

The summary reports positive Rank IC results at weekly and monthly frequencies, with mean IC above 0.03 and positive readings in more than 67% of observations. In portfolio group tests, the strongest group differs by weighting method; the market-cap-weighted fourth group is reported to have 10% annualized return, information ratio above 1.3, and maximum drawdown below 29%. A pure-factor portfolio is reported at 7% annualized return and a Sharpe ratio of 3.51. These are historical backtest figures from an abstract, not independently verifiable results: the underlying report, data period, implementation details, costs, and robustness checks are absent, and the source cautions that past performance may not persist.

Key ideas

• The study examines northbound investor ownership share as a potential A-share selection factor.
• Northbound holdings are described as closer in industry and style exposure to the CSI 300 than the CSI 500.
• Food and beverage, pharmaceuticals, and home appliances are reported as relative industry overweights versus the CSI 300.
• Weekly and monthly tests report positive Rank IC for the ownership-share factor.
• Portfolio outcomes vary with weighting method, and the reported results are historical backtests that may not generalize.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.