12/31 Bitcoin Ethereum Market: Bitcoin is still in the b-wave oscillation phase and has not effectively broken below the support zone, so it cannot be determined that the b-wave has ended.

It is expected to have repeated oscillations, and opening long positions can be considered to lay out the b-wave rebound.

There have been multiple supports at this position, and the shape is similar to a head and shoulders top; as long as the neck line is not broken, it may continue to oscillate. Therefore, the current strategy is to wait for the b-wave rebound and then prepare for the layout of the c-wave decline.

As for Ethereum, the overall structure is still oscillating, and it may continue to perform a three-wave rebound before preparing to enter the c-wave decline. Overall, the short-term market oscillation structure is not yet complete, and some small rebound operations can still be done, after which preparations can be made for short positions.