**Bitcoin Faces Increased Weekend Volatility Amid ETF Growth**

Bitcoin's weekend volatility has spiked since the launch of spot Bitcoin ETFs, according to Kaiko Research. Their Aug. 12 report highlights that Bitcoin's liquidity is now more concentrated on weekdays, especially in BTC-USD markets.

While weekend trading volatility has generally declined since 2021, the shift to weekday trading heightens the risk of sharp price swings during market stress. Kaiko noted significant price discrepancies across exchanges during the Aug. 5 sell-off, with Bitcoin dropping 14% over the weekend.

Crypto markets' 24/7 operation exacerbates weekend uncertainty, amplifying price impacts. The recent sell-off saw slippage up to 5.53% on some exchanges. Spot Bitcoin ETFs in the US have attracted $17.3 billion in net inflows since January, holding 4.7% of Bitcoin's supply.