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by Cecile Vannucci
February 8, 2017, 3:17 AM MST February 8, 2017, 6:39 AM MST
Click Here to read on Bloomberg’s website.

Here’s another sign that beneath the surface of placid stock markets, investors aren’t exactly sound asleep.

It’s the persistently high premium traders are paying for equity options, visible in the difference between implied and realized volatility in the S&P 500 Index. The gap, definable as the intangible cost of stock insurance over and above what is accounted for by the market’s swings, has now lingered for 51 trading days.

That’s the longest streak in almost a year and one of the longest in the past decade, data compiled by Bloomberg show. Implied volatility has exceeded realized by 3.9 points on average each day since October, about 12 times the average gap over the past decade.

“This chart illustrates two ‘alternative facts’ that have been thrown around a lot lately,” said Patrick Hennessy, head trader for the $88 million IPS Strategic Capital Absolute Return Fund in Denver. The fund trades primarily options on the S&P 500 and CBOE Volatility Index. “The first is that options are cheap. The second is that low volatility means that there will soon be a spike in volatility. Yes, volatility is a mean-reverting asset, but that does not necessarily indicate that it will immediately pop higher.”

In the last 10 years, the longest run of S&P 500 implied volatility trading above realized swings lasted 81 days through March 2012. The VIX rallied 43 percent in the following two months as the S&P 500 slumped, reaching a low in June of that year.

In other occasions when volatility bets were above actual price fluctuations for more than 51 days, the VIX fell in four of the six instances. Last year, it jumped ahead the British vote to leave the European Union.

The VIX rose 1.9 percent at 8:36 a.m. in New York to 11.5, still near a more than two-year low reached Jan. 27. Most market participants expect volatility will pick up, though betting on it has proved particularly costly, according to Hennessy.

“The question is not if, but when?” he said. “This trade has not been profitable since Donald Trump has been elected president.”

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