At the time of the big dump in the market, the Swiss exchange canceled some erroneous trades.

Jin10 data reported on April 7th, as global stock markets further fell on Monday, some Swiss stocks, such as EFG International and Swissquote Group Holding, seemed to experience a big dump. Wealth management company EFG appeared to have fallen by 65% after opening in Zurich, but quickly recovered. According to a notice from the Swiss Stock Exchange Six Group AG, this drop, along with the falls of other stocks such as Dottikon Es Holding AG, Arbonia AG, Kardex Holding AG, and Swissquote, was a misreport and has been canceled. The exchange may also announce other misreport decisions and stated that due to "market turmoil," the deadline for such phone notifications has been extended to that evening.