Weinstein is mentioned favorably in a number of trading books so I bought his book, read it, and thought it was good. Then I looked into how well he'd done implementing his own ideas. I looked up the performance of his newsletter "The Professional Tape Reader" in The Hulbert Guide (copyright 1993). Here are some snippets.
"Over the twelve years through mid-1992, Weinstein's model stock portfolio had a gain of 48.5% compared to 432.7% for the Wilshire 5000." (page 317)
"[his mutual fund] has done better -- especially on a risk-adjusted basis. Over the six and one-half years through mid-1992, it gained 70.9%, in contrast to 124.5%for the Wilshire 5000 -- but with substantially less risk." (page 318)
"Weinstein's mutual fund allocation advice in the stock market gained 238.9% on a pure timing basis, as compared to 432.7% for buying and holding. When this timing-only portfolio's risk is taken into account, it almost (but not quite) equals the market's return." (page 318)
For the period 1980 to 1992 his timing model ranked 12th out of the 15 newsletters evaluated; for 1985 to 1992, his newsletter was ranked 27th out of 27. (page 504)
There are more comparisons, but you get the idea. I'm not trying to make him look bad but I found it disconcerting that his performance seemed to be so weak. I'd love to hear his side of it but I've never been able to find anything from him.
Some possible explanations: 1) Hulbert's measure of performance is invalid; 2) Weinstein's ideas are sound but he doesn't have the skill to implement them; 3) His ideas are unsound.
Wayne
(There...my first post

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