Synchrony (SYF) reached a significant support level, and could be a good pick for investors from a technical perspective. Recently, SYF broke through the 20-day moving average, which suggests 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.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.SYF could be on the verge of another rally after moving 5.8% higher over the last four weeks. Plus, the company is currently a Zacks Rank #1 (Strong Buy) stock.The bullish case only gets stronger once investors take into account SYF's positive earnings estimate revisions. There have been 8 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 SYF for more gains in the near future.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 Synchrony Financial (SYF): Free Stock Analysis Report To read this article on Zacks.com click here.