This charmed circle includes Google, Amazon, Baidu, Facebook, Saleforce.com, Netflix, Pandora, Tesla, LinkedIn, ServiceNow, Splunk, Workday, Ylep, Priceline, QLIK Technologies and Yandex. Taken altogether, their market cap clocked in at $1.3 trillion on Friday. That compares to just $21 billion of LTM net income for the entire index combined. The talking heads, of course, would urge not to be troubled. After all, what’s a 61X trailing PE among today’s leading tech growth companies?