If you blinked twice, you likely missed this week’s market plunge. In fact, as researchers at Deutsche Bank illustrate in the chart below, it’s been the fastest correction for the benchmark S&P 500 index on record. The time taken for all of the major indexes to give up more than 10% of their value has been just six days. A little over a week ago, on February 19, all three major indexes were hitting record highs. What a difference a week makes!