The major factors affecting bitcoin are :
Change in government - it's simply means when another government enter there's will be reduction or addition of some policies.
Political instability - when political system in the country is not stable, everything will get down.
If this factor occurs then the price of bitcoin will not fall very far and will even rise again very quickly.
This factor has little effect on the decline in bitcoin prices, in my opinion the most influential factor on bitcoin prices are investors who buy bitcoins at very low prices so that sellers cannot sell their bitcoins at high prices.
supply and demand still the factor that affects the value of Bitcoin, though regulations also play some part with those news
about acceptance and banning.
But the mjor part still relies with how investors and traders will play along the way, you have to analyze well if you into
this investment business as it will lead you to proper assessment and anticipations.