Screening Shenzhen Main Board Stocks by Valuation and Opening Gain

Summary

This document describes a Chinese equity screen for Shenzhen Main Board stocks. It selects stocks with a daily range above 1, price-to-earnings ratios from 0 to 29.01, price-to-book ratios from 0 to 3.11, and a quoted 9:25 gain below 6%. The rationale is to combine basic valuation and price movement around the market open as a rough gauge of interest and sentiment.

The article discusses possible weaknesses, including noise in a single time snapshot and missed candidates from a restrictive gain ceiling. It suggests broadening technical inputs, adjusting thresholds using historical data, and adding turnover. Its sample Python approach uses stock fundamentals and daily bars to approximate the opening condition, but explicitly notes that the data source lacks an opening price. It provides no backtest, performance evidence, or validation of the approximation, so the thresholds should be treated as a proposed screen rather than an established trading signal.

Key ideas

• The screen combines Shenzhen Main Board membership, a daily range threshold, valuation bounds, and a 9:25 gain ceiling.
• The article interprets the opening-time price change as a rough measure of market interest and sentiment.
• A single time-specific price observation may be noisy and may not have statistical significance.
• The sample code approximates opening behavior from daily data, which limits confidence in its measurement.
• The document offers no backtest or evidence that the screen produces profitable trades.

Tags

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