Kirby (KEX) shares soared 4.7% in the last trading session to close at $129.59. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 4.3% gain over the past four weeks.Shares of Kirby have gained 65% year to date driven by the improving sentiment pertaining to the capesize market. In fact, this year the capesize market has undergone the strongest first quarter since 2011. The current northward movement of the Baltic Dry Index is owing ...