50x is the contract multiplier.. So one tick is worth 50 times that tick. If I buy two contracts Market tick will be worth 100 ticks... Its very chunky if you know what I mean. I weight my positions with the confidence metric of my model... Very granular stuff. If model is very sure, I'll take 100 times leverages, if it's little bit less sure, I want 90 times leverage, not 50 or 0. Hope it make sense