BeaconUnderstanding Hợp Đồng Vĩnh Viễn Contracts
Perpetual futures, commonly known as "perps," are hợp đồng phái sinh that allow traders to speculate on the price of an asset without actually owning it. Unlike traditional futures contracts that have a fixed expiration date, hợp đồng vĩnh viễn never expire. This innovation was popularized in the tiền điện tử markets and has since become the dominant trading instrument, accounting for the vast majority of crypto khối lượng giao dịch globally.
When you open a hợp đồng vĩnh viễn vị thế, you are entering an agreement to exchange the difference in the asset's price between when you open and close the trade. If you go long (buy) and the price rises, you profit. If you go short (sell) and the price falls, you profit. The contract itself is settled in a stablecoin like USDC, meaning you never need to handle the underlying tiền điện tử.
Perpetual futures are available on both centralized exchanges and decentralized platforms like Hyperliquid. You can explore the full range of available markets on our markets page.
How Hợp Đồng Vĩnh Viễn Differ from Traditional Futures
Traditional futures contracts, like those traded on the CME for commodities or equity indices, have a set expiration date. When the contract expires, it settles either physically (delivery of the underlying asset) or in cash. Traders who want to maintain exposure must "roll" their vị thế into the next contract period, which creates additional costs and complexity.
Perpetual futures eliminate this rollover process entirely. Because there is no expiration, traders can hold vị thế for as long as they like - seconds, days, or months. This simplicity is one reason perps became so popular in crypto markets, where 24/7 trading makes contract management even more complex.
The trade-off is that hợp đồng vĩnh viễn require a unique price-anchoring mechanism. Without an expiration date forcing convergence with the giá giao ngay, there would be no guarantee that the perpetual price stays close to the actual market price. This is where the tỷ lệ tài trợ comes in.
The Tỷ Lệ Tài Trợ Mechanism
The tỷ lệ tài trợ is the critical innovation that makes hợp đồng vĩnh viễn work. It is a periodic payment exchanged directly between long and short traders, designed to keep the hợp đồng vĩnh viễn price tethered to the underlying giá giao ngay.
When the perpetual price trades above the giá giao ngay (indicating bullish tâm lý), the tỷ lệ tài trợ is positive, and vị thế long holders pay vị thế short holders. This creates a cost for being long and an incentive for being short, which puts downward pressure on the perpetual price. Conversely, when the perpetual trades below spot, the tỷ lệ tài trợ turns negative, and shorts pay longs.
On Hyperliquid, funding payments are calculated and exchanged every eight hours. The rate is typically a small percentage of your position size, but it can spike during periods of extreme market sentiment. Understanding how funding rates work is essential for managing the cost of holding perpetual positions, and you can calculate your expected funding costs using our funding rate calculator.
Advantages of Trading Hợp Đồng Vĩnh Viễn
Perpetual futures offer several advantages that make them attractive to traders at all experience levels. The most significant is đòn bẩy - the ability to control a large vị thế with a smaller amount of capital. On platforms like Hyperliquid, traders can access up to 50x đòn bẩy on major assets, meaning a $1,000 ký quỹ deposit can control a $50,000 vị thế.
Short selling is another major benefit. In thị trường giao ngay, you can only profit when prices go up. With hợp đồng vĩnh viễn, you can just as easily profit from price declines by opening a vị thế short. This makes perps an excellent tool for hedging - if you hold a portfolio of crypto assets, you can open short perpetual vị thế to protect against downside risk.
Additionally, hợp đồng vĩnh viễn markets typically offer deeper liquidity and tighter spreads than thị trường giao ngay, especially on high-volume platforms. The no-expiry feature means you never need to worry about contract rollovers, and stablecoin settlement simplifies accounting and quản lý rủi ro.
Rủi Ro và Cân Nhắc
While perpetual futures are powerful instruments, they come with significant risks that every trader must understand. Leverage amplifies losses just as much as it amplifies gains. A 50x leveraged position will be liquidated with just a 2% adverse price move. Liquidation means your margin is seized, and you lose your entire position. You can calculate exactly where your liquidation price falls using our liquidation calculator.
Funding rate costs can also erode profits over time. Holding a vị thế long during a bullish market may feel natural, but if tỷ lệ tài trợ are significantly positive, you are paying a premium every eight hours. Over days or weeks, these costs compound and can turn a profitable trade into a losing one.
Market volatility in crypto is notoriously high. Flash crashes, cascading liquidations, and sudden funding rate spikes are all real risks. Successful perpetual futures traders use strict risk management: appropriate position sizing, stop-loss orders, and never risking more capital than they can afford to lose. Learning about liquidation mechanics is a critical first step.