Question 1

How is holding cost calculated?

Accepted Answer

Holding cost = round-trip trading fees + accumulated funding. Funding is charged every 8 hours (3 times a day on most perp exchanges), so a 0.01% rate over 7 days is 21 funding payments on your full notional. Fees are one-off; funding compounds with time.

Question 2

Why does holding cost matter more with leverage?

Accepted Answer

Because funding and fees are charged on notional (position size), not on your margin. At 10x, a cost equal to 1% of notional is 10% of your actual capital. Long holds at high leverage can quietly eat your margin even when price never moves.

ポジション保持コスト計算ツール

資金はあなたのポジションに応じたレンタル料です