United Rentals (URI) is looking like an interesting pick from a technical perspective, as the company reached a key level of support. Recently, URI crossed above the 20-day moving average, suggesting a short-term bullish trend.A well-liked tool among traders, the 20-day simple moving average offers a look back at a stock's price over a 20-day period. This is very beneficial to short-term traders, as it smooths out short-term price trends and gives more trend reversal signals than longer-term moving averages.The 20-day moving average can show signals that are similar to other SMAs as well. 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 URI have been moving higher over the past four weeks, up 7%. Plus, the company is currently a Zacks Rank #2 (Buy) stock, suggesting that URI could be poised for a continued surge.The bullish case only gets stronger once investors take into account URI's positive earnings estimate revisions. There have been 3 revisions higher for the current fiscal year compared to none lower, and the 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 URI for more gains in the near future. More Stock News: This Is Bigger than the iPhone! It could become the mother of all technological revolutions. Apple sold a mere 1 billion iPhones in 10 years but a new breakthrough is expected to generate more than 77 billion devices by 2025, creating a $1.3 trillion market. Zacks has just released a Special Report that spotlights this fast-emerging phenomenon and 4 tickers for taking advantage of it. If you don't buy now, you may kick yourself in 2022.Click here for the 4 trades >>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 United Rentals, Inc. (URI): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research