Screening Shanghai-Listed Stocks for Amplitude and a Fresh KDJ Crossover
Summary
This screen selects stocks whose codes begin with 60, whose daily high-low amplitude exceeds 1%, and whose KDJ indicator has just crossed upward. The post describes the crossover as a possible sign of improving market sentiment and uses the code prefix to restrict the candidate universe. It includes formula and Python references for calculating the amplitude and KDJ conditions, but provides no evidence that the signals predict future returns.
The author warns that high amplitude can accompany elevated risk, KDJ crossovers can produce false signals, and restricting the universe to one code prefix may leave a narrow sample. The screen also omits company fundamentals and other nontechnical factors. Suggested refinements include adding market capitalization, trading volume, other indicators, industry or fundamental data, and reviewing the historical performance of selected stocks; no such tests are reported.
Key ideas
- The screen combines amplitude above 1%, a newly formed upward KDJ crossover, and a stock code beginning with 60.\nThe crossover is treated as a possible momentum signal, not a guarantee of continued gains.\nHigh volatility, false indicator signals, and a restricted stock universe are cited risks.\nThe document recommends broader inputs and historical evaluation but reports no test results.
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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.