Yes if you have a good feeling on the fundamentals of these 2 stocks now may not be a bad time to build a position. The ratio chart is approaching 6 month lows, which means over the last several months CWN has been stronger than TAH, and the pair is currently 1.80 standard deviations below its mean, the pair backtests well, the only thing I don't like about this pair is its low & decreasing correlation at 38%, although this is not strictly important if your playing fundamentals, I would look to add to the position below a ratio of 1.00 (TAH/CWN) and look to exit at a ratio of 1.35 which has been a recent resistance zone, that is when TAH share price is 1.35 times that of CWN share price.