Diker Management Llc increased its stake in Workday Inc (WDAY) by 26.8% based on its latest 2018Q3 regulatory filing with the SEC. Diker Management Llc bought 4,020 shares as the company’s stock rose 11.15% while stock markets declined. The hedge fund held 19,020 shares of the technology company at the end of 2018Q3, valued at $2.