The S&P 500 has gone on to gain 13.6% on average over the following 12 months after notching a reading as low as it is now.

What a week it’s been. Wall Street rallied Friday but all three major indexes closed the week in the red as President Donald Trump’s budding trade war has sent jitters through US markets.

The gains weren't limited to stocks, though, with gold futures closing above the $3,000 per ounce mark for the first time.