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Strategies & Market Trends : Joe Copia's daytrades/investments and thoughts -- Ignore unavailable to you. Want to Upgrade?

To: Brett Fleischman who wrote (4350)	6/4/1998 1:23:00 AM
From: xray	Respond to of 25711

Just to take a stab at your question, asking the company is the only reliable way, I'd venture to say. Obviously, you can add the insider positions listed with SEC and the institutional holdings listed with Vickers (is there a web site for Vickers?), but both are incomplete indication of stock held by the two groups. I think a good way to qualitatively estimate the size of the trading float is to look at the time constant for decline from major highs, but everyone's experience with this possible correlation is bound to be different.