One more drop below the May lows could take the leading stocks to my target buying zones, which are determined using a combination of Fibonacci and volatility band analysis.

FORBES: Sweet Spot for Rare Earth Stocks

Determining the level of volatility has been an important part of market analysis for many years, and gauging the current risk of either buying or selling has often been a key factor in whether or not a trade turns out profitable.

FORBES: Gain an Edge with Volatility Analysis

U.S. Global Investors does a statistical analysis to determine what it considers the normal volatility of gold.

FORBES: Connect

Fundamentally, the high volatility means investors are discounting extreme future scenarios and baking that analysis into their daily trading activity and their view of security prices.

FORBES: Why Volatility Is The New Norm

The statement said that ANZ had withdrawn funding for Whitehaven's proposed Maules Creek mine due to "reputational risks and analysis of the returns on this mine in the current climate of high volatility in the coal export market".

BBC: Australian miner Whitehaven Coal hit by hoax