Traders should be in before the market opens, but being late on this is less disruptive than being out sick, and being absent the whole day. Although there's an

Traders should be in before the market opens, but being late on this is less disruptive than being out sick, and being absent the whole day. Although there's an ethical distinction between being legitimately sick and "throwing a sickie", and the latter will usually get you fired if caught-- although it's unlikely that this would happen-- they're both equal in terms of disruptiveness and loss to the firm. My point is that it's counterproductive to have an incentive system in which being 8 minutes late is worse than missing a whole day.