| Fast Stochastic | Refers to both %K and %D where %K is un-smoothed |
| Slow Stochastic | Refers to both %K and %D where %K is smoothed |
| Raw %K | Un-smoothed %K |
| Fast %K | Un-smoothed %K |
| Slow %K | Smoothed %K |
| Fast %D | Moving average of an un-smoothed %K |
| Slow %D | Moving average of a smoothed %K, in effect: a double smoothed %K |
| %D | Always refers to a smoothed %K (whether or not the %K itself is smoothed) |