If the -1.00 drop was during Intraday execution then simply means your stock lost 1.00 in value, however at th end of the day the price of your stock may still be worth something.

When your stock price drops in valus it will never go below zero, when it reaches zero it stops trading and you cry a little.

You obviously don't know the fundamentals of share dealing. Why not read a dummies guide on the subject and then ask sensible questions. You will learn that a stock can't possibly have a negative price. A stock may be worthless or just have no one willing to buy and therefore will be zero.

Stock cannot go to -$1.00...lowest it can go is $0.00 which means the company has been liquidated and is out of business.

Not possible.