Screening Shanghai-Listed Stocks by Amplitude and Control Signals

Summary

This stock-screening idea selects companies whose codes begin with 60, whose amplitude exceeds one, and which were described as under major-player control on the previous day. The rationale is to narrow attention to volatile stocks with a potentially notable flow of large-market-participant activity. The post also suggests adding valuation and profitability measures such as price-to-earnings, price-to-book, and return on equity, and adjusting filters as market conditions change.

The accompanying code reference includes filters for positive price-to-earnings, amplitude and daily change above one percent, and price relative to its five-day moving average above one, then sorts by market capitalization. These implementation details do not fully match the prose definition of the screen, and the meaning of the “major-player control” proxy is not validated. No backtest results or performance evidence are supplied. The post notes that price behavior may diverge from fundamentals and that restricting the universe to these codes can exclude other candidates.

Key ideas

• The screen focuses on stocks with codes beginning with 60 and amplitude above one.
• It uses a prior-day major-player-control condition as a proxy for notable market interest.
• The code reference adds positive valuation, price-change, and moving-average filters.
• The prose criteria and code filters are not fully consistent.
• The post gives no performance validation and notes that the restricted universe may omit candidates.

Tags

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