On Workday’s March 7, 2013 earnings call, the CFO (Mark Peek) said, “Approximately 63 million shares, including more than 14 million exercisable stock options not currently included in our share count, will be available to trade after the lockup expires. These totals exclude shares held by insiders and those subject to Rule 144.” Doing the math, the float could increase almost 250% over the next few trading days. via Workday’s Bubble Is About To Pop – Seeking Alpha.