So far, the effect on stock markets has been particularly damaging for US equities. They have been hit harder than during Trump's first trade war in 2018. The S&P 500 index is down by more than 8% (in euros) since the start of the year, while the MSCI All Countries index excluding the United States is holding up better (+1%, in euros). Wall Street has thus recorded its worst start to a year relative to the rest of the world since 1988!
The IT and artificial intelligence sector, which was very popular until recently, is also struggling, with the “Magnificent Seven” (i.e. Alphabet, Amazon, Apple, Meta Platforms, Microsoft, NVIDIA and Tesla) losing 18% of their value over the period.
While the tariffs imposed by Trump in 2018 did not have a significant impact on the share performance of international companies generating a large proportion of their revenues in the United States, the opposite is true today. The uncertainty generated by US protectionism and fears of a possible recession in the US are beginning to penalise them too.
Shares in European groups that are very active on the other side of the Atlantic (up 5% this year) are underperforming shares in continental companies that export little to the US (up 11%) by 6%. This is a radical change from what happened between January 2018 and June 2019. At that time, they had outperformed by 14% as US growth held up well against the tariffs.
This shows the extent to which President Donald Trump's ‘America First’ strategy is, paradoxically, making investors wary of US equities and companies that generate a large proportion of their revenues in the United States. The optimism generated by Donald Trump's pro-growth policies (lower taxes and deregulation) is already a distant memory.
The rise in customs duties and the redundancies in the US administration are now leading to fears that this could undermine the confidence of economic players and ultimately prove to be a source of stagflation - a period characterised by weak growth and inflationary pressures.
This fear is already perceptible on the stock market, with stocks that thrive in a period of stagflation (such as precious metals, industrials and defensive sectors such as healthcare) outperforming the most vulnerable stocks in this scenario (such as IT, energy and consumer durables) by almost 15% (in euros) in the US since the start of the year.
Another sign of this concern is that safe havens such as gold (up 14% since the start of the year) and investment-grade bonds are also increasingly sought after by investors.