> What did people think was going to happen? That brokerages would remain neutral and allow buy and sell orders of listed stocks like they do on other days. It

> What did people think was going to happen? That brokerages would remain neutral and allow buy and sell orders of listed stocks like they do on other days. It's totally fair to acknowledge a sudden and unpublished rule change at the market open that foreseeably led to big price swings. At a minimum, the SEC needs to step in and describe the exact circumstances when brokerages are allowed to unilaterally halt sales of securities. Markets where people don't understand the rules are worse than casinos.