On Tue, Aug 16, 2016 at 5:25 PM, Carlos Rodriguez <carlos@s8f.org> wrote:

grarpamp:

...

What software is out there that implements an exchange itself? Be it for currency pairs, stocks, or commodity trade floor. Currency pairs being the primary example above.

Centralized model:

http://buttercoin.net/ (old, last commit 2 years ago)

Decentralized:

https://bitsquare.io/ (but it’s not very popular yet, not much trade volume) http://www.coinffeine.com/ (not much info on it)

Personally I don’t see these programs ever netting enough trade volume to rival top private exchanges. Traders won’t show up if the liquidity isn’t there.

Why not netting volume... software feature / capabilities? They might not be anything like realtime hft and realworld integration, especially if running over a crypto network, but might be enough to get a market of a 50-5k casual users in/out of various pairs. Users buy in/out of localbitcoins, other side markets, atm's at 5-15% random premium, so a low liquidity on accurate price discovery doesn't seem to bother that crowd much, and some seem to wait out bad pricing till a better maker comes.