I didn't pay attention to the square in the past few days, my funding fee ate up less than 2000u at the end of the year. In terms of principal, I've both lost and gained, overall it's still okay. Just remember one thing, the settlement funding fee can indeed drop significantly; as long as it's not a continuous flood, there will be a rebound afterwards. Catch the rebound and run, don't think about holding for a single 4-hour period.