From a technical perspective, Builders FirstSource (BLDR Quick QuoteBLDR - Free Report) is looking like an interesting pick, as it just reached a key level of support. BLDR recently overtook the 20-day moving average, and this suggests 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.

Similar to other SMAs, if a stock's price moves above the 20-day, the trend is considered positive, while price falling below the moving average can signal a downward trend.

Shares of BLDR have been moving higher over the past four weeks, up 7.9%. Plus, the company is currently a Zacks Rank #3 (Hold) stock, suggesting that BLDR could be poised for a continued surge.

Once investors consider BLDR's positive earnings estimate revisions, the bullish case only solidifies. No earnings estimate has been lowered in the past two months, compared to 3 raised estimates, for the current fiscal year, and the consensus estimate has increased as well.

Given this move in earnings estimate revisions and the positive technical factor, investors may want to keep their eye on BLDR for more gains in the near future.