The Traderszone Network

Published in TZ Latest News 27 February, 2017 by The TZ Newswire Staff

P/e ratios and data provider

Hi

Anyone here cares to share wether they calculate the P/E ratios of companies themselves or if they trust data providers, and if so which one ?
Right now checking Mylan, Bloomberg gives a P/E ratio of 17.24, Yahoo finance 84+ and IB 82.9 and I find similar discrepancies on other stocks.
Why is Bloomberg so far off ?

Thanks in advance for all related input