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Questions tagged [exchanges]

This tag should be used for questions regarding exchanges. Exchanges are sites which allow for the conversion of Bitcoins to various world currencies as well as alternate cryptocurrencies.

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95
votes
17answers
219k views

How can I buy Bitcoin via a Credit Card or Paypal?

I want to buy some bitcoins. Ideally, I would like to buy them on the MtGox exchange (because the consensus seems to be that this is the most reputable exchange), however I have found the system for ...
87
votes
9answers
174k views

Why don't people buy at one exchange and sell at another?

Bitcoinity.org shows that for the past 30 days, bitstamp's price is high at 101.00, low at 77.00, and current price is 98.04. On contrast, mtgox's price for the past 30 days is high at 115.00, low at ...
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 ...
29
votes
1answer
33k views

What is a bid wall?

On the bitcointalk forums I hear a lot of talk about "bid walls". I have never heard of these in other types of financial markets. It seems that people use them as a way to support the price of a ...
28
votes
11answers
8k views

Can bitcoins be “sold short”? Or are there “put” options?

Borrowing an asset and "selling it short" facilitates finding the appropriate price for the asset, allowing people to bet that the asset is overpriced (e.g. in a "bubble"). Can bitcoins be sold short?...
26
votes
11answers
361k views

How can I change BTC into normal cash?

Can you eventually hold the bitcoins in your hand, like real cash dollars or euros or something? If so, how? I've gone through all the service previews and introduction videos (actually, a video), ...
25
votes
6answers
61k views

What is the strategy behind a sell wall?

I understand the idea behind 'bid walls', but on Kraken, prices are being kept low through the use of 'sell walls'. The volume on this exchange is too low to have a chance of getting through these ...
24
votes
6answers
183k views

Where can I buy Litecoin?

I know Litecoin is sold on Coinbase, but I'm wondering if anyone has compiled a list or knows of other exchanges selling the currency?
24
votes
4answers
23k views

Are there any open-source trading bots out there?

Has anyone published an open-source trading bot that runs on a Bitcoin exchange?
23
votes
5answers
15k views

Is there an open source Bitcoin exchange?

I just found this project, which is described a.t.m as a learning project. Is there a more serious, open source Bitcoin exchange? I'm aware exchanging BTC for fiat money can be quite complex, and ...
21
votes
4answers
8k views

How can one find how much “room for arbitrage” is there in the Bitcoin market?

I don't know what's the mathematical/economical definition, but I would define "room for arbitrage" as the amount of money that can be extracted from the market by doing arbitrage (between the ...
21
votes
5answers
87k views

Is there any way to buy bitcoins online without a fee?

I'm new to bitcoins, and my experience is from something like E*Trade buying on the NASDAQ, so that's my frame of reference. I paid a small broker fee for every buy or sell, and I trusted the exchange ...
21
votes
1answer
8k views

What function does Mt. Gox's “Open Transaction” withdrawal option perform?

When withdrawing bitcoins from Mt. Gox, there is an option with a checkbox next to it titled "Open Transaction (6 confirmations)". What does this do to my withdrawal? I'm thinking this is probably a ...
20
votes
8answers
36k views

What would it take to create my own Bitcoin exchange?

I'm looking into creating a Bitcoin / crypto currency trading platform (say, like Tradeking), as I've noticed there are a few sites out there already, except they all have pretty hefty fees. So, to ...
20
votes
5answers
2k views

Can I use bitcoin as a means of bypassing Argentine Dollar restrictions?

I am planning on doing some small-time buying/selling with a friend who is in the States. I am in Argentina and I do not have a way of reimbursing him in Dollars for products that he buys, sends to me,...
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?
18
votes
2answers
47k views

How do bitcoin exchanges work?

I'm relatively new to the world of Bitcoins and understand the basic principles of wallets and addresses etc, but was wondering how exchanges (like Coinbase) work exactly. Is the entire exchange ...
18
votes
11answers
60k views

How can I buy Bitcoins with Australian Dollars?

Please! I just want to get them! How hard does it have to be? I've spent some 5 hours today trying to figure it out. I am in Australia.
17
votes
5answers
8k views

Is there a Bitcoin exchange comparison site (fees, details) like distrowatch.com or http://cmsmatrix.org/?

Is there anybody that knows of a site that does a fairly thorough comparison of all currently active exchanges, and their fees especially. Like there is distrowatch.com and cmsmatrix.org. The ...
16
votes
3answers
29k views

What is needed to make a bitcoin exchange?

What do I need to setup a bitcoin exchange website like: BTC China Mt Gox Bitstamp I have my own web development team and we can code pretty much anything so that is not a problem. I'm at a loss ...
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.
16
votes
4answers
117k views

Bitcoin market hours (open/close prices)

If Bitcoin trading never stops then what does it mean when news sites and others talk about bitcoin opening or closing at a certain price, and why is this terminology used? Could two people mean ...
16
votes
3answers
16k views

Where does Coinbase buy coins from?

When we buy coins from Coinbase, where do they get the coins from?
16
votes
4answers
1k views

What are the legal processes that someone would have to go through in order to get a Bitcoin exchange operational?

One of the main perceived difficulties in getting started with Bitcoin is obtaining some in the first place. Naturally, for an exchange to be accepted into the mainstream it needs to be a recognised ...
16
votes
6answers
19k views

Is it possible to buy or sell Bitcoin options?

Like put and call options for a stock, but for the future price of Bitcoin?
15
votes
5answers
67k views

How can I convert bitcoins to Indian rupees and vice-versa?

How can I convert bitcoins into Indian rupees (INR) and get them in paper rupee notes?
15
votes
6answers
4k views

How would a decentralised exchange work?

The idea of decentralised Bitcoin-fiat exchanges has been floating around. (For example Mastercoin, Ethereum and Bitshares claim to be able to do it.) How would such a decentralised exchange work?
14
votes
2answers
2k views

Why so many bitcoin exchanges have their bank accounts closed and have problems establishing bank accounts?

I find it really strange that it happens that so many Bitcoin exchanges have their bank accounts closed. Outside of the Bitcoin world, I find it very unusual to have a bank account closed, for a ...
14
votes
1answer
2k views

Why is MtGox trying to trademark “Bitcoin”?

Someone on the #mtgox IRC channel pointed me to this. It seems to be an application by Tibanne Co. Ltd. for the Trademark name BITCOIN. I asked MagicalTux on #mtgox about it, but got no answer. Why ...
14
votes
3answers
4k views

Is there a list of available APIs for Bitcoin exchanges?

So far I have seen some Perl modules; Finance:MtGox and Webservice:MtGox for interacting with Mt.Gox, a Ruby gem for Mt.Gox and a Python based command line client for again, Mt.Gox. I'm wondering if ...
12
votes
4answers
9k views

Need authoritative source for historic Bitcoin conversion prices from all exchanges

What are the authoritative sources for historic Bitcoin prices? Ideally this will be an API for all major exchanges.
12
votes
8answers
66k views

What are the options available to convert Bitcoin to Paypal USD?

I have, recently, started earning some Bitcoins from CoinURL.com. I want to know all the options available for converting these earned Bitcoins to Paypal USD.
11
votes
6answers
686 views

Could the price drop between July and September 2011 have been caused by a bot?

In July 2011, 1 BTC was trading at above $10 USD. By September, the price of 1 BTC had fallen over 50%, and at the time of writing (October 2011) 1 BTC is trading around $2.50 - $3.00 USD. In a forum ...
11
votes
9answers
3k views

Is there a forum-like exchange for trading Bitcoins person-to-person?

I was to trade Bitcoins for PayPal quite frequently and I know that PayPal doesn't allow Bitcoin exchanges to accept PayPal payments. But there should exist a person-to-person trading site that works ...
11
votes
3answers
1k views

What is the easiest way to programmatically obtain the current USD-BTC spot price?

E.g., if I wanted to create a cron script that would grab the latest spot price every hour and store it in a local file or database, what would be the place to "scrape" that information from? (...
11
votes
4answers
30k views

Is there an efficient way to exploit arbitrages between the different exchanges?

The Bitcoin ratio vs other currencies is not the same among exchanges. Is there currently a way to exploit this arbitrage and profit?
11
votes
9answers
37k views

What is the best way to purchase Bitcoins quickly? [closed]

What is the best way to purchase Bitcoins quickly? I don't want to wait a month.
11
votes
4answers
410 views

Is there already an existing closed cash flow loop for the currency BTC?

Loop means: merchant will get delivered goods from producer in BTC customer will buy goods from merchant in BTC factory worker will get salary as BTC (at least in parts) At this loop there is no ...
10
votes
1answer
20k views

How do buy and sell orders work?

How does buying and selling bitcoins work once the order is placed? I just know that the order-matching engine is used for this purpose, but more information regarding this will be helpful.
10
votes
2answers
1k views

Dollar cost averaging approach to Bitcoin investing?

Are there any services offering a dollar cost averaging approach to Bitcoin investing, i.e. something like an index tracker fund which purchases a set amount on a regular basis? If not, are there any ...
10
votes
7answers
14k views

Which exchanges offer stop-loss functionality?

In case of a sudden price drop, I want to sell my coins automatically. MtGox doesn't have an option for this, which exchanges do?
10
votes
3answers
2k views

Is there a bitcoin exchange accepting SEPA transfers? [closed]

Since mt.gox had to close its european office, is there any other exchange accepting SEPA transfers? Sending a wire to the HK office costs much more than a SEPA transfer to me, and I'd like to avoid ...
10
votes
6answers
3k views

What is the definition of a P2P exchange?

Bitcointalk member BTCLuke suggested the following six criterion for a P2P Exchange: A P2P Distributed Exchange MUST: Be without any central points of failure, since a government or two WILL be ...
10
votes
2answers
8k views

What's a good resource explaining the best ways to buy Bitcoin (noob friendly)?

We have a slew of questions about specific regions ... but I couldn't find a general, concise, good resource on how to buy Bitcoins. This article offers too many choices and isn't noob friendly. I ...
10
votes
6answers
369 views

What would a new exchange need to be better than the rest?

If a new crypto v crypto exchange were to be built and launched. What would tempt you to use it rather than what you currently use? Or what improvements would you like to see from the way things work ...
10
votes
1answer
749 views

What happened with MtGox on 2011/9/12?

On that date, some erratic out-of-spread trades appeared on MtGox. The explanation given says that accounts may have been compromised by the CosbyCoin attack on bitcointalk.org. I do not understand ...
10
votes
1answer
2k views

What is the early history of the BTC exchange rate?

Trading on Mt. Gox, which is now the largest Bitcoin exchange, started in July 2010 at an exchange rate of $0.05 USD. This comment suggests that on May 2010, bitcoins were traded at bitcoinmarket.com ...
10
votes
3answers
2k views

Which exchanges are Tor-friendly?

Mt. Gox's sign-up page states: Please be advised that accessing your account via the Tor network and/or public proxies may result in a temporary suspension of your account, and having to submit ...
10
votes
1answer
440 views

Why does blockchain.info say BTC was traded for $35?

According to blockchain.info, BTC reached a peak rate of $35 in June 2011. According to the data available from bitcoincharts.com, the highest price BTC was traded in Mtgox that month (and until ...
9
votes
3answers
40k views

Where do the dollars go?

This question seems to me to be such an obvious question, that it must be answered somewhere. As I understand it is necessary to buy bitcoins using dollars or some other currency. Where do those ...