Questions tagged [exchange-rate]

refers to the rate at which two currencies are exchanged one-for-another.

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18
votes
6answers
13k views

How is the exchange rate for Bitcoin established?

I noticed that there are exchange rates for Bitcoin to other given currencies. How are these rates established?
24
votes
10answers
23k views

Where can I get historic data series of Bitcoin prices?

Where can I get a time series of (date, bitcoin price in USD)? BitcoinCharts no longer provide historic data, only the last 20,000 samples.
33
votes
7answers
58k views

Why do the price of bitcoins vary wildly between exchanges?

▼ mtgoxUSD 95.0000 108.452 -12.404% 2428892 ▼ btc24EUR 67.5047 89.036 -24.183% 348160 ▼ btceUSD 82.9900 106.794 -22.289% 277286 ▼ bitstampUSD 75.9900 109.320 ...
9
votes
5answers
8k views

Is anyone taking advantage of different prices across exchanges?

Say I have funds on two exchanges. Whenever the price of bitcoin is higher on the first one, I sell on that one and buy on the other one. Is anyone doing this or has a program that does this? Is it ...
18
votes
6answers
19k views

Where can I get all historical trades BTC price data?

Where can I get all historical trades BTC price data? (There are some similar questions, but I am looking for high-resolution data, while the previous questions asked for lower resolution data, such ...
6
votes
4answers
2k views

How do bitcoin exchanges set prices?

What do exchanges base their Bitcoin and alt currency prices on? What makes them say that they will sell bitcoins for certain amount? Do they increase and decrease their price based on what other ...
5
votes
1answer
660 views

What are some of the proposed ideas to why the Bitcoin dropped to sub $400 in the end of summer 2014?

Having seen that BTC was around $600 early summer of 2014 (May-July). It is currently almost 50% of that value. I read many varying reports of the cause of such a big drop. Can someone give a list of ...
6
votes
9answers
19k views

Displaying price in BTC based on USD exchange rate

This is a pretty classic programming question, but I think it is a very common one for the Bitcoin community, and would be helpful to have the code publicly available. My preference is for a php ...
5
votes
4answers
3k views

What is the Bitcoin spot price and how is it calculated?

I was offered to buy Bitcoin for today's spot price (MtGox to be specific). So, I am wondering, what is the spot price and how is it calculated? Is there a standard tool to look it up?
14
votes
4answers
4k views

Is there empirical data about a relationship between bitcoin price and difficulty?

There have been claims that Bitcoin price and difficulty correspond. Is there empirical data to support or refute this?
5
votes
3answers
5k views

Bitcoin's real-time Buy and Sell price API

What is the API to get Bitcoin's real-time Buy price and sell price on my site? and how can get it from to implement in my website developed in PHP.
9
votes
1answer
6k views

Why is MTGOX's Price/Bitcoin higher than most other exchanges?

I've been watching BitCoins for the last few months, and noticed that MTGOX's price per bitcoin is always higher than the price per bitcoin of similar exchanges, (eg cavirtex.com, and bitstamp.com). ...
3
votes
2answers
819 views

Huge price difference between mtgox and others - why?

I know mtgox is imposing halts of withdrawals at the moment but i just cant understand this chart (see bellow - taken on 21.2.14 21:37 GMT), surely if i can buy btc on mtgox and A) Then spend them ...
3
votes
2answers
892 views

Where can I find bitcoin price charts?

I am trying to see some bitcoin charts but looks like all sites are down. Any help?
2
votes
1answer
536 views

How mtgox and bitstamp calculate the bitcoin price?

Trading platforms like mtgox and bitstamp display the current bitcoin price on the top. How they calculate that and what effect it has when trading? What labels Last|High|Low and Vol actually mean?
1
vote
5answers
3k views

Do I have to buy a full bitcoin to get the price increase?

If I buy half a bitcoin at $500 and the value of a bitcoin goes up to $1000, does that mean I earn 1 bitcoin or do I have to buy a full bitcoin to get the price increase? How does it work? Please give ...
16
votes
4answers
37k views

Anyone know of an API I can get historical price time series for multiple coins

I'd like to build some historical price charts, to use in my cryptocoin portfolio tracking app, using time series data (with HighCharts js). Anyone know of an API that provides this price data, ...
7
votes
4answers
2k views

How to stabilize Bitcoin's exchange rate (reduce volatility)?

Is it possible to stabilize exchange rate(s) of Bitcoin to FIAT currencies (USD, EUR etc.) and make the rates less volatile only by raising the market capitalization (more people buy/invest in Bitcoin ...
6
votes
6answers
5k views

How much energy will the Bitcoin network eventually consume? [duplicate]

A recent Bloomberg article stated that the Bitcoin network currently consumes about half as much energy as the Large Hadron Collider or enough to power 31,000 US homes. Even if the article is way off ...
16
votes
5answers
2k views

Why have prices fallen so drastically around October 2011?

Any idea why bitcoin prices have fallen so in September and October of 2011? It seems like back in August, one bitcoin cost about US$17, whereas in late October, it's just somewhat over US$2.
9
votes
3answers
2k views

How does bitcoin's price volatility compare to commodities/stocks with comparable market capitalizations?

Bitcoin's long term (after 21 million units have been created) market cap is about $102 million. Price volatility of individual commodities/stocks is inversely correlated with their market cap, so ...
7
votes
3answers
285 views

Freelancer: billing my customers in bitcoin

I do freelance work and I was considering offering my customers the option of paying me in Bitcoin. Given that bills are usually paid in 2 - 4 weeks after sending them, and the exchange is still quite ...
4
votes
2answers
521 views

Why is the exchange rate of Bitcoins the same for everyone?

If I open Google and type 1 Bitcoin to Dollar I'm returned with a number (as of writing, "1 Bitcoin equals 246.09 US Dollar"). But where does this number come from? Given the decentralized nature of ...
3
votes
3answers
13k views

Where do these coins gain their value?

I have been mining coins for a long time (started with BTC/LTC years ago, moved to altcoins recently) and have realized I am not clear on the actual source of the value. Do the exchanges deem the ...
4
votes
1answer
122 views

Sell order in Bter is incorrect

In Bter I created a sell offer with DOGE/BTC, it seems the calculation is wrong. They have not deducted the transaction fee. I have included 2 screen shots and anybody know the same or experience the ...
4
votes
1answer
2k views

Bitcoin Charts API Data

So I'm trying to learn how to work with an api, and how to get bitcoin historical price data. Ideally, I'd like all of it, and the nice gui that they have on the site for displaying the charts (but I ...
3
votes
2answers
131 views

Effect of media coverage on the exchange rate?

When mainstream media or some high-profile blogs etc. report about Bitcoin, does it have a direct effect on the exchange rate? Are there any examples in the past? Let’s say an author is about to ...
0
votes
2answers
873 views

Costing arbitrage between exchanges [closed]

I'm currently writing something to script arbitrage between two exchanges to test the concept. I know I can determine the difference in prices by using (ExhangeA_sell - ExchangeB_buy) <- this ...
0
votes
1answer
950 views

How do exchanges keep relatively similar price on coins?

I know there are price difference across all exchanges but they are relatively similar. If each exchange operated independently I would think the price of coins would be radically different since the ...
0
votes
2answers
937 views

Calculating the current price of 1 BTC?

I am planning to get into BTC as I have some PC with xfire (7970's) laying around here and I am currently trying to learn more about it; what I would like to first understand is BTC pricing to make ...
6
votes
3answers
1k views

Pricing bitcoins

Bitcoin functions as a a quasi-commodity currency and I believe it can be priced according to particular factors, variables, instead of simply by the supply and demand in the exchange order book. The ...
6
votes
2answers
2k views

Is there any desktop notifier application for bitcoin prices?

There's a nice C2DM push based notifier for android but I'd like to know if there is one for the desktop environment, ideally linux? Does anyone know if one exists?
5
votes
4answers
136 views

Bitcoin taxes question for USA

If one were to receive Bitcoins then immediately use a conversion service (for example to PayPal) would gains/losses need to be recorded? If so, is there any software that can do this automatically? ...
1
vote
7answers
45k views

How do I calculate the value of some amount of bitcoins in my native currency?

If I know the exchange rate, how can I calculate the value of some amount bitcoins in my native currency?
0
votes
1answer
292 views

Understanding Bitcoin prices

I followed the prices of Bitcoins during this day, but I am actually very cofused as to why Preev reports it always about $70-$100 less than Bitcoinity. News websites say the price soared to $900 ...