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Random walk depends on all participants acting rationally based on the same information released at the same time. However, index funds are not rational, they a
by hueving 10y ago
Random walk depends on all participants acting rationally based on the same information released at the same time. However, index funds are not rational, they always buy in the same ratios regardless of news.
- aangjie 10y agoI'd suspect all those HFT firms will have robot agents (trading based on some ratios/logic) as simulations for their testing environment.