NOV Inc. (NOV) is looking like an interesting pick from a technical perspective, as the company reached a key level of support. Recently, NOV's 50-day simple moving average crossed above its 200-day simple moving average, known as a "golden cross."There's a reason traders love a golden cross -- it's a technical chart pattern that can indicate a bullish breakout is on the horizon. This kind of crossover is formed when a stock's short-term moving average breaks above a longer-term moving average. Typically, a golden cross involves the 50-day and the 200-day moving averages, since bigger time periods tend to form stronger breakouts.Golden crosses have three key stages that investors look out for. It starts with a downtrend in a stock's price that eventually bottoms out, followed by the stock's shorter moving average crossing over its longer moving average and triggering a trend reversal. The final stage is when a stock continues the upward climb to higher prices.A golden cross is the opposite of a death cross, another technical event that indicates bearish price movement may be on the horizon.Shares of NOV have been moving higher over the past four weeks, up 33.4%. Plus, the company is currently a #3 (Hold) on the Zacks Rank, suggesting that NOV could be poised for a breakout.Once investors consider NOV's positive earnings outlook for the current quarter, the bullish case only solidifies. No earnings estimate has gone lower in the past two months compared to 2 revisions higher, and the Zacks Consensus Estimate has increased as well.Investors should think about putting NOV on their watchlist given the ultra-important technical indicator and positive move in earnings estimates. 7 Best Stocks for the Next 30 Days Just released: Experts distill 7 elite stocks from the current list of 220 Zacks Rank #1 Strong Buys. They deem these tickers "Most Likely for Early Price Pops." Since 1988, the full list has beaten the market more than 2X over with an average gain of +24.8% per year. So be sure to give these hand-picked 7 your immediate attention. See them now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report NOV Inc. (NOV): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research