Fortinet (NASDAQ:FTNT) stock is up a staggering 25% today after reporting strong second-quarter earnings results. Indeed, the cybersecurity stock led Wall Street in the morning as the top gainer.Fortinet managed to hardily beat both earnings and revenue estimates in its fiscal second quarter. The company reported earnings of 57 cents per share on revenue of $1.43 billion, compared to estimated earnings of 41 cents on $1.40 billion.This has, predictably, earned the admiration of many a Wall Street analyst, i ...