> It is in fact not the case that there is a single exchange on which IBM trades (it is listed on the NYSE, CsE, and at various places abroad). Liquidity factua

> It is in fact not the case that there is a single exchange on which IBM trades (it is listed on the NYSE, CsE, and at various places abroad). Liquidity factually does exist in different amounts at different places; this is a major reason why HFT works. Ground loops... /showerthought