Cryptocurrency News, True or not. The traders, Miners, and actually most of all that uses cryptocurrencies but this 3 factors is the main aspect for me that really determines what will be the price of bitcoin.

Cryptocurrecny News: Whether it is true or not, publicity is publicity, the recent down in price of bitcoin is because of the FUD that happens in the last
                                 week about this Jamie Dimon guy and the banning of bitcoin in China, because of this people panics that resulted to the price drop.

Traders: Actually this people is really the one for me that is doing the volatility of any crypto coins because they read the chart then they will do what they
             think is right, most of them also bases their analyzation from News.

Miners: Even though they are just mining and getting fees out of a transaction, for me they really affects the price if they stop mining or they are out
            numbered to the current transaction that is happening in the network and this will cost a higher fees most of the time.

Off course the supply and demand of the bitcoin. When it increases so as to price increases proportionally. Besides that bitcoin price will get flooded once the big investments starts to take the shape. That can fluctuate the market real easy.

In a way yes it's speculative trading, but then again in the markets those are manipulated earnings, it's done with ulterior motives and people often fall in the trap, while In Bitcoins it's simple demand and supply higher the demand less the supply prices shoots up, lower the demand higher the supply fall. It's all about understanding that this isn't just speculative, it's more than that, you need to understand the market, the coin and plus no third party can touch it or manipulate it.

of course, the price increase is how the amount of demand in the market, because the more bitcoin users the higher the bitcoin price. use bitcoin every day and we will feel the high price.

Bitcoin price is mainly driven by the community support.It depends upon the trust which is kept on bitcoin by the people based on which they get ready to pay the price.Bitcoin price increases or decreases in proportion to increase and decrease in demand for bitcoin.Just like how gold got its value based on people's will to pay for it,same is the condition with bitcoin.People trust in bitcoin since its a decentralized currency which government could not control or devalue and also since it is secure as it works on a secured blockchain system.

Bitcoin price is affected by certain factor: Global news regarding Crypto, Supply and demand, FUD, trading. It is certain that the BTC price drops were affected by the recent news regarding Bitcoin. China bans ICO, US billionaires negative views on Bitcoin. Chinese investors cash out their BTC due to their country's actions against BTC.

The value of precious metals and elements is determined not so much by their practical relevance, as by their rarity and demand. Digital money has a cost that you need to take into account in calculations:
electricity costs;
investments in mining-farm;
commission for transactions.

just like stock trading, the price is greatly influenced by the buying and selling that takes place in the market ..

Bitcoin prices relay on demand and supply like any stocks in the global market , But for sure bitcoin market is totally different form other stock because people expect to get 2x profit if they hold for 1-7 months ,also previous conclusion applied on altcoins markets.