9 venues list a BRENT perpetual: 6 charge funding every hour, 3 continuously.
Avantis
GMX
Helix
Hyperliquid
Lighter
Ondo
Ostium 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.