MYX

Both sides work against this trade now: funding costs −$6 a day on $10k at the current rate, and MEXC is 0.105% cheaper against SunX than usual: you would sell low and buy high (−$10 if the spread goes back to its 7-day average of −0.008%). Swap the legs. Mind the row above: over the last 7 days funding on this pair paid +0.127%, so the current rate has only just turned against you.

The current funding rate is far above what this pair has been paying: over the last 7 days it paid 0.127% in total (about 6.6% a year). A funding rate is set anew for every payment; at this rate the next one is about −$1.06 per $10,000. In the chart: green and red are payments made, yellow is the current rate, not paid yet.