Limit orders are not hidden at all. There's a 200 share bid sitting in the GE order book right now at 14.28 on Yahoo! Finance. There are six orders sitting in

Limit orders are not hidden at all. There's a 200 share bid sitting in the GE order book right now at 14.28 on Yahoo! Finance. There are six orders sitting in the BAC order book on Yahoo! Finance. If they are suppose to be hiding limit orders, BATS, the provider of the data, is certainly not doing a very good job. Now, there are certainly means of hiding one's intention. There are also means of finding out where hidden liquidity exists. I will admit to that. Look up icebergs and strategies to detect icebergs. Just because people attempt to hide their intentions while some try to discover those intentions, that doesn't mean there is anything suspect taking place. Information, or the lack of information, is important.