WhyItDropped

S&P 500 · March 26, 2018

Up on word that they were talking

+2.72%

single-day change vs previous close

What happened that day?

  • On 26 March 2018 the S&P 500 rose 2.72%
  • The week before, the US had announced large tariffs on Chinese goods and the market had dropped hard
  • That day came reports that the two sides were negotiating behind the scenes — that the tariffs might be a bargaining position
  • Tariffs raise prices and disturb supply chains. So what mattered was less the announcement than where it would stop
  • In this period the market swung several percent on single tariff headlines, because headlines were the only thing to price against
  • The talks dragged on, and a first-phase deal did not arrive until January 2020
  • In this stretch the index was 10.16% below its peak

Sources

Every figure on this page is recomputed from the original daily closing prices and checked against them at build time. The account of what happened is written from the sources listed above.