Over the years I have read several books about indicators and their trading rules...Some are good and some are worthless..But here are the trading rules for the TRIN....When TRIN gets to .70 or lower go short...35 is extreme..When TRIN gets to 1.30 or higher go long..Over 1.50 is extreme..When TRIN is at 1.50 and above and the TICK is -500 or less..start looking for a snap back ..go long...FWIW...