SL Green (SLG Quick QuoteSLG - Free Report) reached a significant support level, and could be a good pick for investors from a technical perspective. Recently, SLG broke through the 20-day moving average, which suggests a short-term bullish trend.

The 20-day simple moving average is a well-liked trading tool because it provides a look back at a stock's price over a 20-day period. Additionally, short-term traders find this SMA very beneficial, as it smooths out short-term price trends and shows 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.

SLG could be on the verge of another rally after moving 28.2% higher over the last four weeks. Plus, the company is currently a Zacks Rank #3 (Hold) stock.

Looking at SLG's earnings estimate revisions, investors will be even more convinced of the bullish uptrend. There have been 4 revisions higher for the current fiscal year compared to none lower, and the consensus estimate has moved up as well.

Investors may want to watch SLG for more gains in the near future given the company's key technical level and positive earnings estimate revisions.