During the last 3 days about 20k BTC have disappeared from the order book (at least as I write this).
Do you think it's just one major player (possibly a company) buying? Is the withdrawal of funds from Fort Gox via BTC over?
I think it's one major player (probably a company) instigating and maintaining the uptrend to acquire an inventory of bitcoins as cheaply as possible while keeping the price as stable as possible to protect their assets.
I disagree with the 'protect their assets' part, because it's conflicting with the 'as cheaply as possible' part, which is the important one IMO.
My evaluation is that the major player lets the market go down if possible, and buys when the uptrend from the 'withdrawal via
BTC' is about to make coins more expensive anyway.