OPTN: Market on Close

[Mervin Yeung <tinyeung@xxxxxxxx>]

Hi RTs,  

I am trying to use options to replace stops.  I worry about the
liquidity.  I know the close is usually the most liquid of the day.  I
wonder if I use Market on Close Order to buy calls or puts right at the
close, is it a good way?  

Thanks in advance!  

Mervin