Using Northbound Flow Data for Intraday CTA Timing

Summary

The article examines whether minute-level net purchases by northbound investors through Stock Connect can help time Chinese equity index futures. It compares signals built from daily data with signals built from minute data, using CSI 300 and CSI 500 futures. The reported historical comparison favors minute-based signals on annualized return and return-to-volatility measures. It also notes that these signals trade more often than daily signals.

The analysis reports that northbound trading activity became a larger share of mainland turnover and that its minute net buying was increasingly associated with index moves. It tests performance under different transaction fee assumptions and compares results with randomly generated signals from Monte Carlo simulations. The reported findings support predictive value in the sample, but the document provides only a summary: signal construction details, full test design, and robustness checks are not available here. Historical backtest results do not establish future performance.

Key ideas

• The study uses northbound minute net buying as a signal for timing Chinese equity index futures.
• It compares daily and minute signals on CSI 300 and CSI 500 futures, reporting stronger historical results for the minute signals.
• Minute-based signals trade more frequently, making transaction fees a relevant consideration.
• The study compares signal performance across fee assumptions and against randomly generated timing signals.
• The supplied text omits the full methodology and does not establish that the reported historical edge will persist.

Tags

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