| Volatility | ARMA-EGARCH-M Volatility | Parkinson Volatility | RSY Volatility |
| ARMA-EGARCH-M Volatility | 1.0000 | 0.600*** <0.0001 | 0.547*** <0.0001 |
| Parkinson Volatility | 0.546*** <0.0001 | 1.0000 | 0.835*** <0.0001 |
| RSY Volatility | 0.515*** <0.0001 | 0.838*** <0.0001 | 1.0000 |