11 Million Dollar Stockmarket-Hickup because Oops-Clicks

Kleine Alternative zum HFT-Flashcrash von 2010: Gestern kurz gegen Ende des Börsentages klickten anscheinend ein paar hundert Trader auf das falsche Menü-Item für ihre Orders zum Marktschluss und für eine Sekunde war Armageddon. Die Glitchart rechts ist der Kursverlauf von AOL für eine Sekunde.

All of the weird trades occurred at about the same time, just over 10 minutes before the close, and that explanation makes sense. There you are at 3:49 p.m., entering your market-on-close order to buy and sell a bunch of shares in the closing auction. You enter the number of shares you want, you go to the drop-down box on your computer system, you pick "Market on Close," your mouse slips, you actually click on "Market," and whoosh, off your order goes to be filled in the market.

Stock Markets Had a Rough Second Yesterday (via Boing Boing)