Bitcoin fell below $81,000 after Wall Street opened on Friday as US stocks declined and oil prices rose. TradingView data showed BTC/USD reaching $80,988 before rebounding to about $81,600. Brent crude climbed nearly 3% to $116 per barrel amid tensions surrounding the US-Iran war. Material Indicators cofounder Keith Alan said Bitcoin had fallen below the 50-day simple moving average at $81,781. Alan said a failure to regain that level by Friday's daily close would lead Alan to look for support between $78,000 and $80,000.