The serial correlation of absolute cl to cl changes, - I call them absolute daily velocity (ADV) - , is bigger than the changes incorporating the (-) sign.
Serial correlations as of yesterday for 65 measure points:
Leg 1 -9.8% (vs -2.9%)
Leg 2 -16.9% (vs +10.8%)
That means that after a high vola day (velocity) there follows la ow vola (velocity) day.