WMT

Both sides work against this trade now: funding costs −$11 a day on $10k at the current rate, and edgeX is 0.509% cheaper against HTX than usual: you would sell low and buy high (−$51 if the spread goes back to its 7-day average of −0.111%). Swap the legs. The two prices were read 77 seconds apart, so part of this spread may be the market moving, not a spread.

The current funding rate is far above what this pair has been paying: over the last 7 days it paid -0.051% in total (about -2.6% a year). A funding rate is set anew for every payment. In the chart: green and red are payments made, yellow is the current rate, not paid yet.