To say this has been an interesting year for the market would be an understatement. After the swoon in March due to the pandemic, we recovered the entirety of the downturn and then some. There have been only a few market declines of similar magnitude over such a short timeframe, and the abruptness of the snapback has surprised many, especially given what are likely to be longer-lasting effects on the economy from COVID-19. To be certain, fiscal and monetary stimulus have played a significant role in supporting the economy and aiding the market’s recovery. Interest rates have declined, helping make the case for higher P/E multiples. Lower interest rates reduce the rate at which future cash flows are discounted, raising asset prices in general. However, while a portion of the recent rebound in stock prices looks to be justified, it has been accompanied by some harder-to-explain moves in certain individual stocks, and for that matter certain other assets.
Though more traditionally discussed in relation to bonds, the concept of “duration” similarly applies to stocks. Duration is a measure of the weighted average of when investors receive their cash flows. Though the risk profiles generally differ, stocks and bonds are fundamentally similar. Each produces a stream of cash flows; however, unlike bonds, which have contracted payments over preset intervals, the “payment” on stocks is less certain. Assets that are longer duration are more sensitive to movements in interest rates, deriving greater benefit from lower rates and alternatively selling off more when rates rise. Stocks generally have a longer duration than bonds, and among stocks durations will differ as a result of the anticipated cash flows.
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