The market for BTC has been quite volatile in recent days; the current price has returned to the position before the rise on the 13th. There is some support at 103500, but the most critical support level remains at 100800. As long as the price does not drop below 100800 in a 4-hour timeframe, the market will continue to fluctuate within a wide range around 10,000 dollars.

The current trading strategy is simple: short at high points and long at low points. However, my recent profits have mainly come from shorting, as a sell-off can quickly occur due to panic or negative news. In contrast, for the price to rise, it requires strong positive news and sufficient capital to absorb the selling pressure in the market.

Currently, there are signs of a rebound in the 4-hour timeframe, but looking at the current market, the rebound strength is not very high. The upper level of 106100 serves as short-term resistance, and it may be worth trying to short there. Additionally, there will be news from the Federal Reserve in the early morning.