Plexus Corp. (PLXS Quick QuotePLXS - Free Report) is looking like an interesting pick from a technical perspective, as the company reached a key level of support. Recently, PLXS'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.

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.

Shares of PLXS have been moving higher over the past four weeks, up 12.5%. Plus, the company is currently a #2 (Buy) on the Zacks Rank, suggesting that PLXS could be poised for a breakout.

The bullish case solidifies once investors consider PLXS's positive earnings outlook. For the current quarter, no earnings estimate has been cut compared to 3 revisions higher in the past 60 days. The Zacks Consensus Estimate has increased too.

Investors should think about putting PLXS on their watchlist given the ultra-important technical indicator and positive move in earnings estimates.