Sell in May and run away?

Markets fell sharply today. But before we look at the charts, let’s examine three fundamental measures of market stress.

A yield differential near zero indicates bank margins are being squeezed. Lending normally slows, leading to a recession. But the current yield differential of 1.45%, calculated by subtracting the yield on 3-month T-bills from the yield on 10-year Treasuries, is reasonably healthy.

The yield spread between the lowest investment grade corporate bonds (Baa) and 10-year Treasuries is a useful measure of market risk. The risk premium widens in times of uncertainty. Since 2016 the Baa spread has fallen by more than one percent, to 2.25%, indicating low market risk.

The above indications are supported by the St Louis Fed Financial Stress Index which is at a record low of -1.451 since its commencement in 1994.

The St Louis Fed Financial Stress Index measures the degree of financial stress in the markets and is constructed from 18 weekly data series: seven interest rate series, six yield spreads and five other indicators. Each of these variables captures some aspect of financial stress. Accordingly, as the level of financial stress in the economy changes, the data series are likely to move together.

The average value of the index, which begins in late 1993, is designed to be zero. Thus, zero is viewed as representing normal financial market conditions. Values below zero suggest below-average financial market stress, while values above zero suggest above-average financial market stress.

Real GDP growth dipped to 1.9% for the first quarter 2017, compared to 2.0% for Q4 2016. While growth is modest, hours worked by nonfarm employees improved to 1.55% in April 2017 from a low of 1.03% in February, suggesting that growth is likely to continue.

There is little sign of stress in financial markets other than the latest Trump turmoil.