Screening Large-Cap Stocks for Volatility and Institutional Holdings

Summary

This stock screen combines a daily price-amplitude threshold above 1, a circulating market capitalization above 10 billion yuan, and indicators of substantial institutional ownership. The article describes larger companies and active price movement as desirable characteristics, and uses institutional holdings as a proxy for investor interest. Its final stated criteria include institutional shareholding above 5% and holdings exceeding 500,000 shares, alongside a broader review of company fundamentals, industry conditions, and technical factors.

The document flags two main limitations: institutional position data may arrive too late to reflect current conditions, and large price swings may include speculative activity. It suggests adding turnover or trading value and using more timely information about institutional activity and capital flows. Although sample code is included, it also introduces extra filters and selects stocks randomly from the resulting list, so it does not directly validate the proposed screen. No backtest or evidence of returns is reported.

Key ideas

• The proposed screen requires price amplitude above 1 and circulating market capitalization above 10 billion yuan.
• It adds institutional ownership thresholds of more than 5% and more than 500,000 shares.
• The article treats institutional accumulation as a possible signal of interest, not proof of value.
• Institutional data can lag, and high amplitude can reflect speculation.
• The document proposes extra market and fundamental filters but supplies no performance evidence.

Tags

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