Is it true that the market usually rises before the end of the year?
If so, why do you think it happens?
I spoke with few people that already said that in the last 5 years the market became really bulish
People predict that way. But since they expect it to happen usually big whales don't want them to ride with it. You just have to wait and be surprise and also be prepared for anything to happen.
People have always had this mindset with last quarter of the year based on past history, but what I only have to say is that using history to judge what the future will hold is not the right way. Sure, it is a good thing to keep it in mind, but at the same time, it is another good thing to always look at the price action to know the possibilities of where the market is actually moving.
Bitcoin had been rising in all seasons as well as falling in all seasons too. It just happened that it peaked two times, in 2013 and 2017, close tho the year end. Before the 2016 halving it had been rising all the spring of that year, then it crashed it the summer due to people cashing out just before the halving and because of the Bitfinex hack in early August. After that, the growth that culminated in December 2017 highs had started in the early spring of that year, from levels of a little over $1000. As always, the devil is in paying precious attention to details.