Chinese Stock Screen for Intraday Drawdowns and Prior Main-Force Control

Summary

This document describes a short-term Chinese stock screen that looks for shares with an amplitude above 1, evidence of main-force control on the prior day, and a current-day low between 4% and 5% below the previous close. The stated rationale is to focus on price volatility and recent trading behavior. A Python example adds filters for positive volume, turnover, valuation, market capitalization, holder count, non-ST status, and listing date.

The document provides screening rules and sample implementation, but no backtest, performance figures, or evidence that the filters predict returns. Its own risk discussion notes that relying on short-term price action omits fundamentals and broader market conditions, leaving the approach exposed to sentiment and capital flows. The Python filters also do not map exactly to the headline rule: the example uses proxies and additional conditions, so its output may differ from the described screen.

Key ideas

• The screen combines amplitude above 1 with prior-day main-force control and a current-day low drawdown between 4% and 5%.\nThe sample Python implementation applies extra liquidity, valuation, capitalization, listing-age, and status filters.\nThe document gives no backtest or evidence of profitability.\nShort-term price filters may miss fundamental and market-wide risks.

Tags

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