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Wall Street's Volatility Index (VIX) Has Done This 21 Times in the Last 35 Years -- and It Has a Perfect Track Record of Forecasting Future Stock Moves

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Although stocks have been the top-performing asset class over the last century, based on average annual return, this doesn't mean the stock market moves from Point A to B in a straight line -- and the last seven weeks is evidence to this fact.

Since the S&P 500 (SNPINDEX: ^GSPC) reached its all-time closing high on Feb. 19, the ageless Dow Jones Industrial Average (DJINDICES: ^DJI), benchmark S&P 500, and growth-centric Nasdaq Composite (NASDAQINDEX: ^IXIC) have plunged by 15.6%, 18.9%, and 23.9%, respectively, through April 8. Both the Dow and S&P 500 are firmly in correction territory, with the Nasdaq mired in its first bear market since 2022.

When emotions rule the roost on Wall Street, investors often look to historical events and correlative data points for clues as to where the bottom might be, or which direction stocks will head next. Though there isn't a one-size-fits-all indicator that can predict the future with any concrete guarantee, there are a very small number of metrics and events that have strongly correlated with directional moves (higher or lower) in the Dow Jones, S&P 500, and Nasdaq Composite throughout history.

Last week's closing value for Wall Street's CBOE S&P 500 Volatility Index (VOLATILITYINDICES: ^VIX) (commonly known as the "VIX") provided one such example of a data point that's forecast the future with 100% accuracy over the last 35 years.

A volatile candlestick stock chart displayed on a computer monitor that's plunging then rapidly rebounding.
Image source: Getty Images.

Two reasons the stock market has crashed

It's one thing for the stock market to correct lower or enter a bear market in an orderly fashion. This is more or less what investors witnessed with stocks declining during the fourth quarter of 2018 and through the first nine months of 2022. But it's an entirely different scenario when the proverbial elevator is used to move stocks lower.

Between April 3 and April 4, the broad-based S&P 500 lost 10.5% of its value. Meanwhile, the Dow Jones Industrial Average has lost in excess of 10% (4,580 points) spanning just four trading sessions (April 3 through April 8). What we're witnessing in the stock market is very much the definition of a crash, and it's been precipitated by two factors.

For starters, there's clear concern about President Donald Trump's sweeping tariff policy, which he labeled as "Liberation Day" for America. On April 2, the president unveiled a global 10% tariff, along with a host of higher "reciprocal tariffs" on select countries that continually run adverse trade imbalances with the U.S.

Instituting tariffs, which are an added tax on imported or exported goods, runs the risk of inciting a trade war with China and/or worsening trade relations with America's allies. The lack of differentiation between input and output tariffs also risks reigniting inflation and slowing or reversing economic growth. An April 3rd update from the Federal Reserve Bank of Atlanta's GDPNow model is calling for U.S. gross domestic product (GDP) to contract by 2.8% in the first quarter.