NanoViricides Inc. (NNVC)

[JG36]

Yup, in trading those who talk don't know and those who know don't talk. Hundreds of people are trying to sell newsletters, books, and trading system based on methods which, if they ever worked, don't work today. Meanwhile the quant fund Renaissance Technologies racks up billions of dollars for its owners every year and the people there never say a word about how they do it.

If a successful trading method becomes generally known it ceases to be successful, because when large numbers of people use it they push prices in a way that make it no longer work.