永續合約（perps）是一種追蹤資產價格的合約，你不需要持有資產本身。你針對價格會往哪個方向走建立倉位。如果價格朝你預期的方向走，你就獲利。如果朝相反方向走，你就虧損。

和傳統期貨不同，永續合約沒有到期日，所以只要你的抵押品撐得住，就能一直持有倉位。

在 fomo 上，如果你認為價格會上漲可以做多，認為會下跌可以做空。這是和現貨交易最主要的差別，現貨交易只有在代幣價格上漲時才能獲利。

你也可以在永續合約上使用槓桿，讓你用較少的 USDC 控制較大的倉位。槓桿是雙向的，會以同樣的倍數放大你的獲利和虧損。

永續合約在 iOS 和 Android 的 fomo App，以及 fomo.family 的網頁版 App 上都可以使用，兩邊使用同一個帳戶。大多數市場是加密貨幣，也有一些追蹤股票、大宗商品和指數。

fomo 上的每個永續合約倉位都以 USDC 支撐，而你在 fomo 上有兩個獨立的現金池。你的代幣現金餘額持有 Solana 上的 USDC，用於現貨交易、充值和提現。你的永續合約現金餘額則持有專門用於永續合約的 USDC。

要交易永續合約，你要把 USDC 從代幣現金餘額轉入永續合約現金餘額，這筆錢就會成為你倉位背後的抵押品。

開始之前，有真實的風險你應該了解。槓桿越高，只要價格稍微朝相反方向走，就可能讓你的保證金歸零，而一旦你的倉位被強平，那些資金就永遠拿不回來了。

持有倉位也會隨著時間透過資金費率付款產生成本，資金費率的文章會說明這一點。永續合約不適合每個人，而且比透過現貨持有代幣的風險高出許多。

永續合約（「Perps」）由第三方協議提供，不適用於美國人士（美國公民、居民或任何位於美國境內的人）。請勿嘗試從美國境內存取永續合約。

For purposes of these Terms, a "U.S. Person" means: (i) any natural person resident in the United States; (ii) any citizen or permanent resident of the United States, including any such person temporarily located outside the United States; (iii) any entity organized or incorporated under the laws of the United States or any state thereof; (iv) any estate of which any executor or administrator is a U.S. Person; (v) any trust of which any trustee is a U.S. Person; (vi) any agency or branch of a non-U.S. entity located in the United States; (vii) any discretionary or non-discretionary account held by a dealer or fiduciary organized, incorporated, or (if an individual) resident in the United States; or (viii) any entity organized or incorporated outside the United States that is formed by a U.S. Person principally for the purpose of investing in unregistered securities or derivative instruments. "United States" means the United States of America, its territories and possessions, any state of the United States, and the District of Columbia.

Representations and Warranties. By accessing or using Perps functionality, you represent and warrant that: (a) you are not a U.S. Person; (b) you are not accessing Perps from within the United States; (c) you are not accessing Perps on behalf of, or for the benefit of, any U.S. Person; (d) you will not use any technology, mechanism, or technique (including a VPN, proxy, or similar tool) to circumvent or attempt to circumvent geographic restrictions on Perps; and (e) you understand that these representations are material and that Fomo is relying on them in providing you access to Perps functionality.