Tech stocks extend losses, valuations dented

(Reuters) - Technology shares with lofty valuations, including those of midcap data analytics company Tableau Software Inc and Internet giant Facebook Inc, extended their losses on Monday following a gutting selloff in the previous session. Shares of cloud services companies such as Splunk Inc and Salesforce.com Inc had also declined sharply on Friday. "Any disappointment is being taken out to the woodshed." These stocks had high valuations before the selloff on Friday, driven by years of hype t