Citrix Systems Inc. CTXS raised its 2016 guidance as the software maker reported better than-expected results for the first quarter. The Santa Clara, Calif., company's shares rose 5.7% to $85.10 in after-hours trading. For 2016, Citrix raised its adjusted per-share earnings estimate to $4.90 to $5.00 on revenue of $3.34 billion to $3.36 billion.
