From a technical perspective, Calix (CALX) is looking like an interesting pick, as it just reached a key level of support. CALX recently overtook the 50-day moving average, and this suggests a short-term bullish trend.The 50-day simple moving average is one of three major moving averages used by traders and analysts to determine support or resistance levels for a wide range of securities. But the 50-day is considered to be more important because it's the first marker of an up or down trend.CALX could be on the verge of another rally after moving 6.1% higher over the last four weeks. Plus, the company is currently a Zacks Rank #3 (Hold) stock.The bullish case only gets stronger once investors take into account CALX's positive earnings estimate revisions. There have been 3 higher compared to none lower for the current fiscal year, and the consensus estimate has moved up as well.Investors may want to watch CALX for more gains in the near future given the company's key technical level and positive earnings estimate revisions. Time to Invest in Legal Marijuana If you’re looking for big gains, there couldn’t be a better time to get in on a young industry primed to skyrocket from $17.7 billion back in 2019 to an expected $73.6 billion by 2027. After a clean sweep of 6 election referendums in 5 states, pot is now legal in 36 states plus D.C. Federal legalization is expected soon and that could be a still greater bonanza for investors. Even before the latest wave of legalization, Zacks Investment Research has recommended pot stocks that have shot up as high as +285.9%. You’re invited to check out Zacks’ Marijuana Moneymakers: An Investor’s Guide. It features a timely Watch List of pot stocks and ETFs with exceptional growth potential.Today, Download Marijuana Moneymakers FREE >>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 Calix, Inc (CALX): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research