Shares of International Seaways (INSW) have been strong performers lately, with the stock up 19% over the past month. The stock hit a new 52-week high of $62.95 in the previous session. International Seaways has gained 37.9% since the start of the year compared to the 0.3% move for the Zacks Transportation sector and the 19% return for the Zacks Transportation - Shipping industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed our ear ...