I went Halloween shopping last week, but I didn’t see anything scarier than the chart below (and I bought zombie babies, people). The horizontal numbers on the right measure the drawdown of the S&P 500 year-to-date 2021, as graphically depicted by the yellow line. The horizontal numbers on the left show that nearly 90% of the indices’ members have already had at least a 10% correction year-to-date, as graphically depicted by the blue blob. The result is that it’s been a good year for you if you’ve held the S&P 500. However, because a substantial amount of the index’s underlying…