Very interesting, though I was happy to see Knight Capital take the huge loss, since they were such complete scumbags who stole hundreds of millions of dollars by backing away from trades* during the dotcom boom and bust.
*Backing away is when a market maker makes a firm offer to buy or sell shares, receives an order to execute that transaction (which they are ethically and legally obligated to do) and instead cancels the trade so they can trade those shares at a more favorable price (capturing enormous unethical profits in fast-moving markets while regulators did virtually nothing to enforce the rules in a meaningful way)
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