
If you simply Google “sell rosh” like I did, you will likely see it fill in the rest of an investment market saying that dates back to 1955. “Sell Rosh Hashanah, Buy Yom Kippur.” For those not familiar with the story and a couple of nouns I just used, here’s a quick primer.
Back on Sept. 23, 1955, then-U.S. President Dwight Eisenhower, a hero of World War II, suffered a massive heart attack. The market sold off, concerned for the health of the 65-year-old leader. He recovered, and even won election to a second term in 1956. But back then, heart care was not what it is today, and thus alerted the rest of the world to the benefits of early diagnosis.