The market for BTC has been quite volatile these days, and the current price has returned to the level before the rise on the 13th. There is some support at 103500, but the key support level remains at 100800. As long as it does not fall below 100800 in the next 4 hours, the market will still maintain a wide fluctuation around 10,000 dollars.
Now the trading strategy has become simple: short at high points and long at low points. However, my recent profits have mainly come from shorting, as selling pressure can quickly escalate due to panic or negative news. In contrast, for prices to rise, strong positive news is needed along with sufficient funds to absorb the selling pressure in the market.
Currently, there are signs of a rebound in the 4-hour chart, but the strength of the rebound doesn't seem very high. The upper resistance at 106100 can be a point to consider shorting, and there will also be news from the Federal Reserve in the early morning.