When the rate is positive, longs pay shorts. A short on NVDA-PERP receives that payment, or pays it when the sign flips.
Settlement is every 1h on the notional.
Positive means longs pay shorts, so this carry accrues to you. When the rate turns negative the same arithmetic runs the other way and the short pays it out of margin.
Canborsa charges 0.07% per side, 0.14% round-trip.
Up to 20x, settled in USDC.
No. A perpetual position tracks price and does not confer ownership of the underlying.
Yes — a short perpetual position uses the same margin mechanics as a long.