Yes. It is possible.

I buy Coca Cola, McDonald's, Johnson & Johnson, Intel and Philip Morris for dividends and growth. 

Thanks! 

Ya, I calculated the recent sharp fall on CPO price, can easily loss 2x of the investment on the contract in less than a week's time. Pretty scary! And furthermore, actually quite a number of "experts" telling us CPO price is going to be bullish soon around that same period of time before the fall. 

ie.
one contract is $5000, and your future account must have more than $5000 only your broker allow you to buy one contract. So lets assume your account got $10,000.
If price reverse until $5000, meaning you loss $10,000($5000 contract cost + $5000 further loss).
The broker will call you before this and warn you if you choose to cut loss or put more money into your account waiting for rebound. If you don't put more money in, your broker will force sell your contract and your account will become $0.
buy $5000 on stock worst case loss the capital of $5000
buy $5000 on futures worst case loss your house+car+ipads+iphones....