Volatility On The Rise But Trading Ranges Grow Tighter

 | May 25, 2015 12:40AM ET

Summary: The S&P index is making new highs. The trend is higher. But in the process, the trading range has become very tight. In the past, this has been followed by higher volatility and limited, near-term upside for equities.

Over the past five weeks, the trading range for the SPX has contracted dramatically. Just 18 points separates the last 5 weeks’ closes (2118, 2108, 2116, 2123, 2126). 4 of these 5 closes are separated by less than 0.5%.

Moreover, the range between the weekly open and close for SPX the last 4 weeks has been 11 points, 6 points, 7 points and 5 points. That averages to a mere 0.3% open/close range each week.

Periods of contraction in the market are typically followed by expansion during which volatility increases. Presented below are several studies that suggest this is likely over the next week or two.

First, Salil Mehta of Georgetown notes that SPX has gone 8 days without a 1% intraday decline from a high. Streaks this long are rare and typically end after 9 days, meaning that a 1% decline is due next week. This implies an intraday visit to roughly the 2100 level is ahead (his post is here ).