Hi, I was just watching the market close on Commsec, and noticed something that I thought was strange. BHP traded most of the day at a tad over $27, and closed at $27.570. As soon as the market closed, there are BIDs to buy at around $31.00, and OFFERs to sell at arond $13.00.
Can someone explain whats going on?? Because I've seen it before, on many stocks, but don't understand it. If someone wanted the stock, why offer $31 after market close, why not just buy for $27?? and who would want to sell at $13?? whats going on, some sort of market manipulation? if so, why? how, etc.