Yes there are, it's called LULD. https://www.nasdaq.com/articles/all-about-lulds https://www.nasdaq.com/articles/all-about-lulds Don't think the entire market

Yes there are, it's called LULD. https://www.nasdaq.com/articles/all-about-lulds https://www.nasdaq.com/articles/all-about-lulds Don't think the entire market has ever gotten unreasonably high due to a trading error.