BTCUSD retrace up 50% to 93.000Bitcoin / U.S. dollarBITSTAMP:BTCUSDsalvanostBTCUSD retrace up 50% to 93.000 Breaking 78.000 resistance strong signal for bull and weak signal for bear Possible bull trap 104.000 too (before retrace down to 78.000 resistance become support) Invalid if under 78.000 and under 73.000