Investing.com - The historic low in volatility in US stock markets could be here to stayThat is according to Richard Turnill, chief investment strategist at BlackRockTurnill looked at data on market volatility spanning more than a centuryHe found that historical volatility does not settle around a long-term averageInstead, it is often low for long and sometimes highVolatility in US equity markets is at its lowest since at least 1927The S&P 500 is on pace for 60 straight closes without a move of 1% or more