You can practically see the traders scurrying across the floor chasing the flickering green and red lights like moths. AJ1-YYBLK is down—sell! ADIULBST-ALLWHT is up—buy! Suddenly there are a thousand calculations to be made: What does this mean for the individual investment? How does this affect the trader’s firm? And how will the ripples spread out and impact the whole market? Read more at GQ.