In message <a10be304-96dc-4fb3-bf9f-35652477e...@f20g2000pro.googlegroups.com>, Raymond Hettinger wrote:
> On Aug 21, 2:30 am, Lawrence D'Oliveiro <l...@geek-central.gen.new_zealand> > wrote: > >> Wasn’t HFT an exacerbating factor in just about every major stockmarket >> downturn since, oh, 1987? > > IMO, it was a mitigating factor. > HFT firms provide liquidity and help price discovery. > Investor sentiment is what drives rallys and crashes. Someone who doesn’t understand how positive feedback can lead to instabilities in a dynamical system. -- http://mail.python.org/mailman/listinfo/python-list
