In recent years, June Fridays have often been viewed by financiers as a good moment to work from home. Not now.
As news spread about the Israeli air strikes on Iran, traders across Wall Street and London — not to mention Asia — rushed back to their offices to prepare for the inevitable storm.
It swiftly materialised: oil prices surged (initially by around 13 per cent), stock prices fell (initially by 1 per cent in the US), and the dollar reversed its recent downward slide. And while these moves were later partly erased, volatility is likely to stay high; particularly since US President Donald Trump has warned that without a deal the next “already planned attacks” by Israel will be “even more brutal”.