You are already too late, everything jumped back. The key to making profit is to buy when it is red and when this is uncertain that it will recover. When it's already green you will make close to zero profit, if any. You must take risks, like all the time, to make profits.
Yes and those red day is gone and you didn't catch it. That would be the perfect timing for investors that want decent profit.
You can buy now but take the risks.
if he can buy by now with makes some analysis, i think he can take profit although the profit is not much if he bought in last week when the price is reach $2,2xx. as long as he can follow the up and down of the price in the market and not get panic, i am sure that he can buy and sell in the right time without having any trouble.