Hourly Funding as First-Class PnL

Your long leg is 10 coins with an oracle price of $500 and a mark price of $502. The rate is 0.004% this hour. What does the leg book?

• −$0.2008, using the mark price
• −$0.2000, using the oracle price
• +$0.2000, because a positive rate pays the long

A study finds three hours with no funding data in the middle of a trade. Which handling is acceptable?

• Whichever of "skip" or "carry the last rate" gives the better result
• The rule written down before testing, applied every time
• Treat the missing hours as zero, since nothing was recorded