Level 2 - Hidden orders

[Drapoli 2]

Hi,

I got a pretty good handle on level 2 and how to use its information as an indicator to take a short or long position. However, I am still a bit confused on how to identify hidden orders and the reason(s) why hidden buyers / sellers act the way they do. if you know of any good article or youtube video (or if you would like to provide your own explanation) please post the link(s) here.

Thanks,

[RTrader 20]

This happens all the time, but you might not really notice it on a large cap stock. Basically if you watch the tape and you see lots of orders/shares being filled at a certain price or range, but the L2 says there are very few shares at those prices than you have a hidden seller or buyer accumulating or unloading a position. I'm not sure if you could develop much of an edge looking for this, but it is interesting to see it happen.