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5 February 2018: Volmageddon: the Dow drops 1,175 points

The Dow fell 1,175 points, then its largest point drop ever, as a sudden spike in volatility blew up products that had bet volatility would stay low. One popular exchange-traded note lost nearly all its value overnight and was shut down. Investors learned that a strategy which pays a little every day for years can lose everything in one afternoon. Picking up nickels in front of a steamroller, again.

The lesson: Steady small gains from selling insurance against chaos can vanish when chaos finally arrives.

What it meant for investors

$1,000 in S&P 500 index fund at the start of 2018 → $2,519 today, vs $2,519 in the S&P 500.

We start the clock at the start of 2018, the year it happened. That is 2.5 times the money, but $0 less than a plain index fund made over the same years.

What S&P 500 index fund teaches: Owning the whole market removes the risk of picking the wrong company but not the risk of a lost decade, so time horizon matters as much as diversification.

Bought inPrice thenWorth todayS&P 500 would be
2015$2,060$3,301$3,301
2018$2,700$2,519$2,519
2020$3,250$2,092$2,092

green = beat the S&P 500 · red = lost money

What if you bought S&P 500 index fund? Every starting year and the full story →

5 February 2018: Volmageddon: the Dow drops 1,175 points