When investors are disillusioned with the stock market, they tend to sell any rallies. And when they are willing to let the good times roll, they tend to buy any dips. So far, 2021 has been a year of buying the dips. During any trading year, a major index such as the S&P 500 routinely will dance above and below its 20-day moving average trendline. A more-meaningful sign of a dip is when the index approaches or falls below its 50-day moving average, regarded as intermediate-term support. On 18th June, the index fell under its 50-day m/a at 4,166. Within one week, it had recovered and hit a new all-time high, and stocks have been sailing ever since. In fact, the market could probably use a dip, just so investors can buy it.