46 ms·
You'd only stick algos to automatically sell at a given time if you were mad (as you'd act on a move, not a time) - and the down and half-up tick indicate strad
by madaxe 14y ago
You'd only stick algos to automatically sell at a given time if you were mad (as you'd act on a move, not a time) - and the down and half-up tick indicate straddles set around the position.
This may have been a single rogue performing an initial sell, causing a drop which caused all the other pre-set strategies held by folks with very close to the exchange links to also sell, and then subsequently buy back to the midpoint.
- niggler 14y agoAnother HN user described this a long time ago: http://news.ycombinator.com/item?id=2828804 http://news.ycombinator.com/item?id=2828804
- madaxe 14y agoYup. It's all about parsing FIX faster than the next dude.
- niggler 14y agoIn some asset classes (e.g. equities) the exchanges and dealers have built their own proprietary protocols to reduce the excess bytes.
- pbhjpbhj 14y agoNo it's about providing market liquidity in order to optimise the efficiency of production. /sarcasm
- jrockway 14y agoParsing FIX correctly faster than the next dude. I've seen some fast FIX parsers. I've seen few that actually produce correct results :)