A-Share Screen Using Trading Range, Convertible Bonds, and Share Float

Summary

This A-share screening rule selects companies whose daily high–low range exceeds a threshold, that have an outstanding convertible bond name, and whose share float is no more than 5.5 billion shares. The post presents these conditions as a combination of price activity, convertible-bond availability, and company size. It supplies example indicator and Python logic, though the code includes additional market and company filters beyond the headline rule, and some implementations appear to use capitalization measures that may not correspond cleanly to the stated share-float condition.

The post does not report backtest results or evidence that the screen produces returns. It notes that the filter may exclude strong companies, historical price behavior cannot assure future performance, and a limited share float does not ensure a low valuation. Suggested improvements include adding valuation and earnings-growth measures and applying size thresholds by industry. The screen is best treated as a starting point for research, with careful reconciliation of the stated criteria and code before testing.

Key ideas

• The screen combines a daily trading-range condition with an outstanding convertible-bond identifier and a maximum share-float criterion.
• The examples include additional filters beyond the headline selection rule, so their outputs may differ from the stated screen.
• The post provides no performance evaluation or return evidence.
• A limited share float does not guarantee an attractive valuation, and historical indicators cannot predict future outcomes.
• The author suggests adding fundamental measures and refining size rules by industry.

Tags

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