Why bitcoin value in dollar always changes?

[gkv9]

There ain't just one reason, but many...
There are many factors besides sentiments that decide where the price will go and why it changes, and it is mostly depending upon "manipulating bodies" who work behind the scenes with their huge amount of coins to make bucks on people like us...

[tom555]

That happens for all currencies when compared to another currency. I write for a Canadian stock website. I get paid in CAD even though I'm in the United States. Sometimes I get paid about $0.76 per $1 CAD and sometimes I get paid $0.80 per $1 CAD. That's an exchange rate. The same happens with bitcoin. When more people are buying a currency, it gains value against other currencies; when more people are selling a currency, it loses value against other currencies.

[grant27]

Comparing to Forex and Stocks markets, Bitcoin's market cap is not so huge. Also, there are a lots of newbie investors playing with BTC. Even a slight movement may cause "panic buy" or "panic sell" effect on crypto-coin markets.

[lihuajkl]

There ain't just one reason, but many...
There are many factors besides sentiments that decide where the price will go and why it changes, and it is mostly depending upon "manipulating bodies" who work behind the scenes with their huge amount of coins to make bucks on people like us...

The price fluctuates strongly in short time. We can not just simplely apply the  economic rules supply and demand to it. IMO the main driving force should be from the speculative move. We should know that Bitcoin is a type of new currency and ppl are still sceptical about it! Its adoption rate is still not sufficient to make its price stable yet at the moment! We still have long way to go and make Bitcoin be able to compare with the current state of dollar!

[faridkifly]

yeah that's the name of the exchange rate.
everything is may change with or without cause. it all depends on its policies

[flagpara]

It's also because contrary to dollars/euro or others fiat money, you can't really use bitcoins in real life... So there is a hell of a lot exchange between fiat money and btc and everyone is more or less afraid of seeing the bitcoin skyrocketing and missing the opportunity or going to the dump while having lots of btc. Which make that everyone sell or buy bitcoin all the time, contrary to dollars where the vast majority of people using it never change the money