Around news time is it possible to use the price action during the widening of the spread in order to get a jump on some big orders as soon as it tightens again? If this is the case will you always be able to get a good deal when the spread tightens again? Also, if there are 2 collections of limit orders of the same size (both large) on either side of current price will price always jump to the closest one, or does it need contracts to drive it there? Thanks