$BTC I haven't used my computer to watch the market in the past few days since I went back to my hometown. Upon returning, I found that the trend line has actually been broken through, indicating that a rebound in January is possible.
The 4H timeframe also broke through the trend line, and is now in the retracement stage, which is a small-scale rebound breakout pattern. It might be a good opportunity to increase some position in BTC.
My current trading system's position management rule allows for up to 40% of the position.