sirjohnnyboy,
Well spotted. 17/12/09 was the turn-around day. But we didn't know it until it happened. And we don't really know when it will occur again soon.
If I was a potential buyer I'd like to see a similar indication on the chart first, with a bullish candle having a similar effect on the MACD (causing the lines to converge bullishly). Then I may be interested in buying.
Cheers,
10c