From a technical perspective, Wayfair Inc. (W Quick QuoteW - Free Report) is looking like an interesting pick, as it just reached a key level of support. W's 50-day simple moving average crossed above its 200-day simple moving average, which is known as a "golden cross" in the trading world.

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.

There are three stages to a golden cross. First, there must be a downtrend in a stock's price that eventually bottoms out. Then, the stock's shorter moving average crosses over its longer moving average, triggering a positive trend reversal. The third stage is when a stock continues the upward momentum to higher prices.

A golden cross contrasts with a death cross, another widely-followed chart pattern that suggests bearish momentum could be on the horizon.

Over the past four weeks, W has gained 19.6%. The company currently sits at a #3 (Hold) on the Zacks Rank, also indicating that the stock could be poised for a breakout.

The bullish case only gets stronger once investors take into account W's positive earnings outlook for the current quarter. There have been 4 upward revisions compared to none lower over the past 60 days, and the Zacks Consensus Estimate has moved up as well.

With a winning combination of earnings estimate revisions and hitting a key technical level, investors should keep their eye on W for more gains in the near future.