You can't see the bid and ask on the grey sheets s

You can't see the bid and ask on the grey sheets so you have to call your broker for this information. Some brokers allow you to buy on the grey sheets without calling in, so that would be somewhat easier for them. When news hits and it is positive, imagine tens of people or hundreds of people trying to call their broker to get a fix on the bid/ask and put their bid in. It would be chaos and you might not even get hold of your broker and end up in a queue. Best would be to see at what price the last order was filled and then bid some ticks above it. So you will be entering blind bids if you don't know the bid/ask. If big investors jump in, then what could happen is that big investors start bidding many, many ticks above the last fill. For example: order filled at 0,0005. Big investors would put one big bid order at 0,001 and take everything out under 0,001. Then they would take out everything under 0,002 with one big order. If you can buy shares, buy before news hits so you won't have to deal with the chaos. I do expect chaos, but only for the people who want to jump in on news. We can watch the fireworks from the sideline .