Positive forecast > previous, and the actual is greater => up and up
Positive forecast < previous, and the actual is greater => sudden up
Positive forecast > previous, and the actual is smaller => sudden down
Positive forecast < previous, and the actual is smaller => down and down
Negative forecast > previous, and the actual is greater => down and down
Negative forecast < previous, and the actual is greater => sudden down
Negative forecast > previous, and the actual is smaller => sudden up
Negative forecast < previous, and the actual is smaller => up and up
Hope this help
Positive forecast < previous, and the actual is greater => sudden up
Positive forecast > previous, and the actual is smaller => sudden down
Positive forecast < previous, and the actual is smaller => down and down
Negative forecast > previous, and the actual is greater => down and down
Negative forecast < previous, and the actual is greater => sudden down
Negative forecast > previous, and the actual is smaller => sudden up
Negative forecast < previous, and the actual is smaller => up and up
Hope this help