In response to this idea, Dr Kravchenko and his colleagues have proposed that a liquid-like phase of the electrons may explain their observations.

ECONOMIST: Superconductors

That includes pushing ahead with the next phase of NYSE's "hybrid" trading model, which pushes more trading in the most liquid stocks to an automated system and leaves the trading of more illiquid or highly volatile stocks in the hands of the specialists on the floor.

FORBES: NYSE Looks For Options