For a market analyst there is an irresistible temptation to seek out one or more historical parallels to the current situation. The idea is that clues about what’s going to happen in the future can be found by looking at what happened following similar price action in the past. Sometimes this method works, sometimes it doesn’t.

Assuming that the decline from the January-2018 peak is a short-term correction that will run its course before the end March (my assumption since the correction’s beginning in late-January), the recent price action probably is akin to what happened in February-March of 2007. In late-February of 2007, the SPX had been grinding its way upward in relentless fashion for many months. The VIX was near an all-time low and there was no sign in the price action that anything untoward was about to happen, even though some cracks had begun to appear in the mortgage-financing and real-estate bubbles. Then, out of the blue, there was a 5% plunge in the SPX. On the following daily chart, this plunge is labeled “Warning shot 1?.

After the February-March ‘hiccup,’ the SPX resumed its bull market. Both the stock market and the economy were believed to be in good shape, with the problems that had emerged in the realm of sub-prime mortgage lending generally considered to be contained to that relatively-unimportant part of the economy. No less of an authority than Ben Bernanke assured us that these problems were, indeed, contained.

The upward trend continued until mid-July, at which point another ‘out of the blue’ plunge began. This time the decline lasted 5 weeks and wiped 11% off the SPX. On the following daily chart, it is labeled “Warning shot 2?.

The July-August decline was taken more seriously by almost everyone, including the Fed’s senior management. It was taken seriously enough, in fact, to prompt a reversal in the Fed’s monetary policy. The Fed entered rate-cutting mode.