Flash-crash’ response rules enter next phase Monday - Capitol Report - MarketWatch

Flash-crash’ response rules enter next phase Monday - Capitol Report - MarketWatch
 
Hunsader notes that in the first fifteen minutes of the trading day there are often wild swings in share prices in some stocks, noting that Kemper Corp.’s KMPR -1.40% stock price shot up from $39 a share to $357 a share in less than a second at 9:37 a.m. Friday, before dropping back down to around $39 a share again.
“The first 15 minutes is when we see the most egregious moves,” he said. “This Kemper case would have been caught by the rules if the security was subject to the restriction. It will protect the public who have day jobs and want to buy the stock and put in an order that converts to a market order at the open. They won’t get eaten alive this way.”