As a general rule, you should not consider hodling any asset that is below the 30 week moving average, the same applies here to Bitcoin. Until Bitcoin is able to cross over the 30 week moving average, expect the overall momentum to be downward and all bull rallies to fail at or before the point of the 30 week moving average. When/if we close above the 30 week moving average, expect the gravity to change and to pull it upwards.
We recently tested the 30 week moving average and as you can see, it hasn't gone well so far. To get above the 30 week moving average I believe Bitcoin will need some major news in it's favor, such as an ETF being approved. Once we get above the 30 week moving average, I believe we'll see institutions fomo into Bitcoin as Mike Novagratz suggested. Until then, the weekly MA will continue to be an area you should consider taking profit.
Note: This is a log chart and I drew the 30 week MA (Cyan) above the ghost candles to only provide a general idea of how far down we can go. As you can see, we may hit the main upward supporting trendline before crossing over the 30 week MA, or we may cross over the 30 week MA tomorrow. Either way, the safest thing to do is wait until we close above it.