Let's not forget that down in the pit, traders refer to a contract as a "lot". FWIWQuote from startraitor:
Wow, I never heard of someone buying shares of an equities index futures contract! How many shares of es did you buy?
It is usually refered to as a contract or a car on the floor. Car originally refering to a 5000/bu railcar of grain. Good luck with your es shares!
