Bitcoin slides to $79,234 as SMA200 resistance and Deribit expiry converge

On 15 May 2026, Bitcoin reversed after topping at $81,664 and fell to $79,234, down 2.29% on the day. The peak stalled just below the daily SMA200 at $81,957 while $2.63B in BTC and ETH options expired at 08:00 UTC, with Deribit's BTC max pain marked at $80,000. RSI at 52.62 remained above 50 but sat 9.85 points under its 62.47 signal line, reflecting weakened momentum.