NEW YORK (TheStreet) — Shares of eBay are down 1% following a downgrade from hold to sell by analysts at Piper Jaffray. The analysts reasoned that the competition for PayPal is about to heat up, TheStreet's Jim Cramer, co-manager of the Action Alerts PLUS portfolio, said on CNBC's "Mad Dash" segment. Competition includes Facebook and Google , the latter of which could still acquire PayPal …
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