Splunk shares jump 8% on Cisco buyout reports

Shares of Splunk Inc. SPLK, +8.37% climbed more than 8% Monday on reports that Cisco Systems Inc. CSCO, -0.68% has made a $20 billion acquisition offer for the software maker. The offer was made recently and the companies aren’t currently in active talks, according to a Wall Street Journal report, citing people familiar with the bid. Cisco and Splunk have declined comment.