Grail
NITE handles most of brokerages accounts since they do both wholesale and retail. However, when a penny stock is traded very heavily like Petron, and it means there is a definite whale- the MM market maker who is most central and most crucial to the price action and price movement at any time. The whale can be identified by spending several days studying level II quotes and recording specific actions of those MMS and which market maker seems to have the greatest effect on the security's price. Basically the whale is the one who moves the price for Petron now.
Like as I type this message, Petron share price went down about 5-6% but it is a fake move since there are 3-5 primary indicators that tells you on that, right now it is simply one of those violent shake ups. However, there are instances when price genially plunging down and that is the time when you need to get out. Identifying that difference is the most difficult part to figure but by watching the Whale and knowing certain indicators you can figure it out. It is very very hard and it takes time (need to watch very closely and a couple of softwares. IMO