Let this be a lesson to all those who get in a hurry and are not familiar with what a "stop" is.  I meant to place a "stop limit order " but some how convinced myself that a stop would do.  what I wanted  was either a stop limit or just a limit order.  The order I Hurriedly placed with a stop at 23.00 sold at 17.87    .    Remember the stop leaves you at the mercy of the Market price and will execute at the best market price currently  available and nothing better.   Grrr   that one hurt.