Michael Saylor buying $500m or even a billion with his strategy.
How to know when has he entered in the buying spree by looking at the price movements or charts?
Unfortunately you cannot get to know when they are buying; or probably you will get know delayed because in the past when they have tweeted about their buying bitcoins and then I have observed those markets spikes. So, if you really want not to miss out good buying prices and want to buy before Microstrategy will be buying then I guess you must buy right now.