The more revenue Workday takes in, the more money they lose. In other words, as the top line grows, the bottom line shrinks. At this rate, in a few years, they'll be bankrupt. Go check out WDAY's earnings for the past 3 years.
Also, QE is ending -- so it will not keep the price up as it has been doing for the past year.
At about 28x sales and no earnings, this co will have a very tough time hanging on to the 60's (let alone the 70's) when it reports in a couple of weeks imo. There is no way in my view the market can give this a pass. Maybe maybe it is worth 4-6 sales, and that is still a significant premium. Even at 14x sales, it would be half of its current value. Chart appears set up for a further slide into low 60's over coming days.