From late August through September, Enphase's (ENPH) stock has seen some high volatility. From mainstream talking-head Cramer to short-seller Citron, the stock has experienced some turbulence. During that interim, however, insider Isidora Quiroga, has added 1M shares to his $20M stake. Regardless of all the hype, including the promotions from myself, an investor must look at the underlying reasons why Enphase has become a profitable company; the investor should focus on the "four levers of profitable top-line growth" which have been driving and will continue to drive Enphase's success