A-Share Screening with High Amplitude and Low KDJ
Summary
This note presents a Chinese A-share screening rule using price amplitude above 1, a KDJ reading below 20, and exclusion of Beijing-listed shares. It interprets the filters as seeking volatile stocks with a low oscillator reading, then suggests adding market direction, industry, financial measures, and other technical indicators to refine selection.
The article supplies indicator-formula and Python examples, but no historical test, performance data, or evidence that the filters predict returns. Its explanation that excluding Beijing shares reduces policy risk is asserted rather than demonstrated. The thresholds and calculations are also not fully specified: amplitude is described differently in prose and code, and the KDJ condition is abbreviated. It cautions that industry and regional policy factors can affect outcomes and advises considering other information before using the screen.
Key ideas
- The screen combines an amplitude threshold, a KDJ threshold, and exclusion of Beijing-listed shares.
- The article frames the filters as a way to find volatile stocks with a low oscillator reading.
- It proposes adding industry, financial, market, and technical information to refine the screen.
- No backtest or performance evidence is provided, and the formula leaves some calculation details unclear.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.