The only way you're going to get limited slippage is to use Limit orders for the vast majority of your entries and exits. You could probably use Market or Stop orders on some of the most liquid big cap sub $50 stocks, but that will likely result in about 5 cents slippage on each Entry and Exit. If you trade near the market open (9:30 AM to 10:15 AM EST) then even the most liquid big caps can result in huge slippage (25 cents or more) when using Market or Stop orders. I've been running automated (short term) trading systems on NYSE stocks since late 1999, and the slippage to profit ratio for Market or Stop orders has become worse each year since 2003. Now that the NYSE is fully electronic, I use Market or Stop orders only when absolutely necessary! The NYSE took away the Stop with Limit order when it went fully electronic ... they wanted to make sure that there was no method to control slippage when using Stop orders. Good Luck, Slave2Market