Fortinet Stock Is Today’s Worst S&P 500 Performer. Here’s Why.

Trump’s ‘Buy Stock’ Message Comes at a Key Psychological Level

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Stock market today: Dow, S&P 500, Nasdaq jump as Trump touts US-UK trade deal, China talks

Stock Market Today: Dow Jones Up Mildly, Small Caps Rally On UK Deal; Robinhood Breaks Out But Fortinet Falters (Live Coverage)

Wall St rises after US-Britain trade deal boosts market confidence