What's the worry when you can see the big picture........When I see, in general, the trading volume of a green day is higher than that in the red day the stock's internal strength is very strong. If you want a worst case scenario I will give you one - how about a retest of the $0.4 level which is the lowest point of that selloff on June 16. It certainly will hold and bounce back up. Now this will be, on TA, a double bottom. If it ever happens this is the buying opportunity again and which is a gift from the weak and impatient hands that put up their holdings on big discounted sale.
The biggest mistake most amateur makes is to time the market for a quick buck. If you do that before and make a kill then lucky you. Even the best traders cannot make such guarantees. The correct play this summer is to accumulate and the pay cheque day is when PHM announces the next several QRs.