In exchange for selling the bull put spread, the trader receives the option premium and also has risk equal to the difference in strike prices, less the premium received. The Bull Put Spread Trade Setup Celestica (CLS) stock has been in a great uptrend since April and could be a good candidate for bullish option traders. Traders looking for a way to play Celestica stock using options could use a bull put spread. As a reminder, a bull put spread is a defined risk strategy. You always know the worst-case scen ...