Wrong signal from MACD

 

Yesterday btwn 7.45-11.45am MACD indicated that price was going down but instead it went up,or am i reading it wrongly

 

You could have seen a divergence in MacD.

If you are using MacD to give you an entry signal, stop now! Indicators tell you what has already happened, not what will happen in the market. By all means use indicators to confirm trades, but don't use them to enter the market or you will get burned.