The shortest cyclical downturn was in 1998 from top to bottom which took 13 months. We had the tech bubble right after which took 30 months to play out when the bubble popped. So far we are only 6 months into the latest sell off. stockcharts.com/c-sc/sc?s=$SOX&p=M&yr=15&mn=8&dy=0&i=p70692966001&a=149198415&r=1594