Bitcoin briefly tags $83,000, slips back to $82,400 as chip stocks rebound

• —Bitcoin is up 0.3% over 24 hours, still about $1,000 below the $84,000 ceiling
• —Nasdaq 100 futures rose 1.1%, snapping a weeklong 5.5% decline
• —An ETF tracking chipmakers jumped 3% before the U.S. open
• —Europe's Stoxx 600 fell 0.8% after weekend protests in France