Elliot Wave Theory

"Cyclical methods in technical analysis, for instance the Elliott Wave Theory, function especially well on paper. The theory is not quite so successful when the forecasts are compared with actual trades. It is, of course, possible that the downwards correction in a market equals exactly 61.8 per cent (a so-called Fibonacci retracement) of the preceding upwards movement, in which case the theory has been proven right once again. The fact that the market has previously breached other main correction levels is not mentioned. As long as the analyst does not need to trade, he can afford the luxury of cherry picking hits only. Insinuating that someone who does not earn any money using the Elliot Wave Theory or Gann cycli has not understood these theories correctly is going too far, however."
Goldberg and von Nitzsch (1999)

"More than 60% of the respondents market the following technical signals as having the predictive value: MACD, RSI, Ultimate, ROC, Eliott waves and Fibonacci proporsions."
Zielonka (2000)

As far as I can ascertain, Robert Prechter's newsletter is the "The Elliott Wave Theorist", whilst from the same camp, the "Elliott Wave Financial Forecast" is co-edited by Steven Hochberg and Peter Kendall (see "Which Subscription is Right for Me? - Elliott Wave International").
The Hulbert Financial Digest "considers the Elliott Wave Financial Forecast as the successor publication to Elliott Wave Theorist, which was founded by Robert Prechter in the late 1970s. This succession took place in mid 1999,..."
Presumably it be fair to say that "Elliott Wave Financial Forecast" is a fair assessment of Prechter's record up until mid-1999. Or even up until the present.
The Elliott Wave Financial Forecast offers advice for both traders and investors, both have underperformed the market on both an absolute basis and a risk-adjusted basis.