Chicago: The Widening Gyre

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Total chaos in Chicagoland today, so you might have missed our possible role in yesterday's market weirdness:

One official said they identified “a huge, anomalous, unexplained surge in selling, it looks like in Chicago,” about 2:45 p.m. The source remained unknown, but that jolt apparently set off trading based on computer algorithms, which in turn rippled across indexes and spiraled out of control.

Via The Big Picture.

What happened? No one's sure yet, but:

We have a market that responds in milliseconds, but the humans monitoring respond in minutes, and unfortunately billions of dollars of damage can occur in the meantime,” said James Angel, a professor of finance at the McDonough School of Business at Georgetown University.

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