Bitcoin traded below $82,000 after Monday's Wall Street open as sell orders above $83,000 limited gains. TradingView data showed BTC/USD falling to $81,678 on Bitstamp after reaching $83,062 earlier in the day. The Nasdaq Composite Index gained 1.5% in the first hours of Monday trading, while US bond yields also rose. QCP Capital warned that sustained equity deleveraging could threaten Bitcoin's $80,000 support level. CoinGlass data showed total cryptocurrency liquidations of $335 million over 24 hours.