Shares of Netflix Inc. NFLX, +0.58% edged up 0.2% in premarket trading, as the first bullish "golden cross" chart pattern in 15 months. Many Wall Street chart watchers believe the pattern, which is when the 50-day moving average (DMA) crosses above the 200-DMA, is a sign that a shorter-term bounce has graduated to a longer-term uptrend.