Is there a website that can do this?

[bitjas]

I'm looking for a site where you can input all your trading open positions and it will give you live +/- percentage's of your positions? Something that can take prices from all the big exchanges?  It would be super helpful, Please help !! Or if there isn't I'm sure there is someone out there that can code something that can do this

[joshraban76]

I doubt there would be any.

But you can seek a freelancer to help you or make a proper proposal, maybe some developer will like your idea.

[debuni]

Nearest one :

http://bitcoin-analytics.com/


https://github.com/maxme/bitcoin-arbitrage

bitcoin-arbitrage - opportunity detector and automated trading
It gets order books from supported exchanges and calculate arbitrage opportunities between each markets. It takes market depth into account.

Currently supported exchanges to get data:

MtGox (USD, EUR)
Bitstamp (USD, ~EUR)
Bitcoin24 (EUR)
Bitfloor (USD)
Bitcoin-Central (EUR)
BTC-e (USD, EUR)
Intersango (EUR)
Bitfinex (USD)
Kraken (USD, EUR)
Bitcoin-Central (EUR)
Currently supported exchanges to automate trade:

MtGox (EUR, USD)
Bitstamp (USD)
Bitcoin-Central (EUR) - (API changed)



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But consider it's not updated from a long time....

[ShakyhandsBTCer]

I'm looking for a site where you can input all your trading open positions and it will give you live +/- percentage's of your positions? Something that can take prices from all the big exchanges?  It would be super helpful, Please help !! Or if there isn't I'm sure there is someone out there that can code something that can do this

You could easily make an excel spreadsheet for this.

If you would like for me to make one for you then PM and I can make one if the price if right.

[KaChingCoinDev]

No websites that I know of.

I could calculate it for you for cheap if you wanted