Qualys (QLYS) is looking like an interesting pick from a technical perspective, as the company reached a key level of support. Recently, QLYS crossed above the 20-day moving average, suggesting a short-term bullish trend.The 20-day simple moving average is a popular trading tool. It provides a look back at a stock's price over a 20-day period, and is beneficial to short-term traders since it smooths out price fluctuations and provides more trend reversal signals than longer-term moving averages.Like other SMAs, if a stock's price is moving above the 20-day, the trend is considered positive. When the price falls below the moving average, it can signal a downward trend.Shares of QLYS have been moving higher over the past four weeks, up 13.1%. Plus, the company is currently a Zacks Rank #3 (Hold) stock, suggesting that QLYS could be poised for a continued surge.The bullish case solidifies once investors consider QLYS's positive earnings estimate revisions. No estimate has gone lower in the past two months for the current fiscal year, compared to 5 higher, while the consensus estimate has increased too.Given this move in earnings estimate revisions and the positive technical factor, investors may want to keep their eye on QLYS for more gains in the near future. Breakout Biotech Stocks with Triple-Digit Profit Potential The biotech sector is projected to surge beyond $2.4 trillion by 2028 as scientists develop treatments for thousands of diseases. They’re also finding ways to edit the human genome to literally erase our vulnerability to these diseases. Zacks has just released Century of Biology: 7 Biotech Stocks to Buy Right Now to help investors profit from 7 stocks poised for outperformance. Recommendations from previous editions of this report have produced gains of +205%, +258% and +477%. The stocks in this report could perform even better.See these 7 breakthrough stocks 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 Qualys, Inc. (QLYS): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research