volga

noun1

1. •
   A second-order measure of derivative price sensitivity, expressed as the rate of change of vega with respect to changes in the volatility of the underlying asset.

noun2

1. •
   A river in Russia, the longest river in Europe, flowing 2,325 miles through western Russia to the Caspian Sea.
2. •
   Any of several automobiles of the same brand manufactured by GAZ in the Soviet Union and Russia.