Common logic might suggest that as the stock price climbs, so would the P/E ratio, making the stock more expensive. But NVIDIA's earnings have been growing at a rapid pace, outpacing the stock price increase. Nvidia's Q4 earnings soared beyond top and bottom lines expectations, with revenues and non-GAAP EPS coming in at $22.1B (up +265% y/y) and $5.16 (up +486% y/y), respectively. As a result, the P/E ratio actually...