Whenever politicians take a stand, they must look at their cost line.
BlackRock's holding cost of 400,000 bitcoins is $93,000. They are more anxious than anyone else when they fall to this position.
Yesterday, BTC fluctuated repeatedly in the range of 93,500-95,500.
The 4-hour Bollinger Band narrowed to 1.8% volatility, which is a typical bull-bear tug-of-war.
Today's BTC attack and defense system
The watershed is 94,000, a signal to stand firm.
The 4-hour closing price and transaction volume are enlarged to 2 billion/hour.
The target is 94,800-95,600.
Break warning
Two four-hour K-lines closed below 93,300.
Be wary of a deep retracement to 92,400.
