Vucinicv, All I can say is that one of my sell orders in another stock, was cancelled on 15th of May by the ASX. Reason given: 15/05/2013 6:50 PM ASX has purged your order. Reason: Too Far From Market
Seems as though they went through and had a clean up. Perhaps the BGS buy depth included a lot of buy orders that were so far below the market that they were purged. Not realistic buyers, or just leftovers from before it took off?
I could be way off the mark here, but that's one possiblity why the buy depth suddenly got chopped in half a couple of weeks back.
Other theory is that they were only props, and voluntarily removed by whoever put them there. You will notice that BGS had a big drop the next day. 16th May.
Even though some don't, I do believe Market Manipulation takes place. This cannot happen to BGS indefinitely. Once they cease to be able to make the SP do what they want, they move on.
I continue to hold and wait for future SP rises.
BGS Price at posting:
2.3¢ Sentiment: Buy Disclosure: Held