IWM

Both sides work against this trade now: funding costs −$19 a day on $10k at the current rate, and Markets by Kinetiq is 0.123% cheaper against GRVT than usual: you would sell low and buy high (−$12 if the spread goes back to its 7-day average of −0.042%). Swap the legs. Mind the row above: over the last 7 days funding on this pair paid +0.129%, so the current rate has only just turned against you. The two prices were read 106 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 0.129% in total (about 6.7% 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.