I already own a fair chunk - too much invested to consider...

I already own a fair chunk - too much invested to consider investing more. This is a big risk and major uncertainty which the big players don't like, hence the falls. Broker valuations are based on DCF. If they alter their growth forecasts for H407 to inflation rather than the rates they currently use, the effect on the stock valuation is a drop of about 20%. I am crapping myself, although do expect that a rational agreement will be reached.