Bitcoin and the others made a lower week close for 2018. That isn't a bullish sign. But, the day closing has closed higher than yesterday. Meaning some sort of weak bounce isn't out of the question. With odds it may drop again before the week ends to test the lows. Meanwhile the quarter, month, and week closed lower. This is why 6881.83 should be important.
I lowered a blue line to show. I will change the color of the upper one/6881.83.
The term "Weak bounce" is relative, It can go well above yesterday's highs. Pick a close, for it to return under 6881.83. Quarter, month or week. I am using the smaller week because it pulled it back below, after being above 6881.83. Things can change. I still lean to a further drop.