Bitcoin has become more susceptible to wild weekend volatility since the launch of spot Bitcoin exchange-traded funds, according to Kaiko Research. In an Aug. 12 report, Kaiko’s crypto analysts noted Bitcoin’s liquidity has become more concentrated on weekdays, particularly in BTC-US dollar markets. It noted that weekend trading volatility has generally declined since 2021 and has previously reported that Bitcoin’s weekend trading volumes have dropped as institutional and ETF activity grew. But the increased move to weekday Bitcoin trading “heightens the risk of sharp weekend price swings duri…