If you may need to select between all of what you've got know about trading and be left with only 1 thing what is it... MACD? ... Fibonnaci... moving average... pivot points... RSI . . .stochastic... trendlines...R:R ratio... Money Manegement. . .Fundamentals analisys. . .Technical analysis... price action. . .news report title it. . .or maybe somebody else who is aware of what will be the more accurate information you want to understand before building a transaction decision to create it turned into a profitable decision.