Have you been paying attention to shares of Arcosa (ACA) ? Shares have been on the move with the stock up 5.1% over the past month. The stock hit a new 52-week high of $89.17 in the previous session. Arcosa has gained 6.3% since the start of the year compared to the 10.5% move for the Zacks Construction sector and the 11.1% return for the Zacks Building Products - Miscellaneous industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed o ...