Hợp Đồng Mở Là Gì?

A complete guide to understanding hợp đồng mở - one of the most important metrics for reading crypto futures markets.

Understanding Hợp Đồng Mở

Open interest (OI) is the total number of outstanding derivative contracts - such as perpetual futures - that have not been settled or closed. Every open position in the market contributes to open interest. When a new buyer and a new seller enter a trade, open interest increases by one contract. When an existing long closes against an existing short, open interest decreases by one contract.

Open interest is typically expressed in either the number of contracts or in dollar value. For example, if BTC hợp đồng vĩnh viễn on Hyperliquid have an hợp đồng mở of $500 million, that means there are $500 million worth of vị thế currently active in the market. Half of that is held by longs and half by shorts, since every futures contract requires both a buyer and a seller.

Open interest is one of the three core metrics - alongside price and volume - that traders use to analyze market conditions. While price tells you where the market is and volume tells you how active it has been, open interest tells you how much capital is committed to current positions. You can view OI data for all Hyperliquid markets on the markets page.

Hợp Đồng Mở vs. Khối Lượng Giao Dịch

Open interest and khối lượng giao dịch are frequently confused, but they measure fundamentally different things. Trading volume counts the total number of contracts that changed hands during a given period. Every time a trade is executed, it adds to the volume count regardless of whether it opens a new vị thế or closes an existing one.

Open interest, by contrast, only changes when the total number of outstanding contracts changes. Consider three scenarios: if a new buyer matches with a new seller, both volume and hợp đồng mở increase. If an existing long closes by selling to a new short, volume increases but hợp đồng mở stays the same (one vị thế closed, one opened). If an existing long closes against an existing short covering, volume increases but hợp đồng mở decreases.

This distinction matters because high volume alone does not tell you whether money is flowing into or out of a market. High volume with rising hợp đồng mở means new capital is entering. High volume with falling hợp đồng mở means existing vị thế are being unwound. The combination of these metrics provides a much richer picture of market dynamics than either one alone.

Diễn Giải Thay Đổi OI với Giá

The most powerful way to use hợp đồng mở is to analyze it alongside biến động giá. There are four key combinations that traders watch. First, rising price with rising OI is the strongest bullish signal. It means new money is entering the market via new vị thế long, and these longs are profiting as price increases. This combination confirms an uptrend and suggests continuation.

Second, rising price with falling OI suggests the rally is driven by short covering rather than new buying. Shorts are closing their vị thế at a loss, which pushes price up, but no new capital is entering. This type of rally is often weaker and more likely to reverse once the short covering is complete.

Third, falling price with rising OI is a strongly bearish signal. New vị thế short are being opened, driving the price down. The increase in OI confirms that fresh capital is betting against the asset. Fourth, falling price with falling OI indicates that longs are capitulating and closing their vị thế. While the price is declining, the selling pressure is coming from vị thế unwinding rather than aggressive new shorting, making this the least bearish of the declining price scenarios.

These four patterns provide a framework for understanding whether a price move is driven by conviction (new vị thế) or exhaustion (closing vị thế). Seasoned traders check OI changes before making decisions to confirm or question the validity of price trends.

Using Hợp Đồng Mở in Trading Decisions

Beyond trend confirmation, hợp đồng mở provides several actionable insights. When OI reaches historically high levels relative to a particular asset, it often signals that the market is heavily vị thếed and vulnerable to a sharp unwind. Extremely high OI means many traders have open vị thế có đòn bẩy, and a price move in either direction could trigger thanh lý dây chuyền.

Traders can also use OI to identify support and resistance levels. Large concentrations of hợp đồng mở at specific price levels suggest that many vị thế were opened there. These levels often act as magnets or barriers for price, because traders will defend their vị thế at these prices or be forced out when they are breached.

For quản lý rủi ro, monitoring OI helps you gauge how crowded a trade is. If you are considering entering a vị thế long but OI is at record highs with an extreme long/short ratio, you know the trade is crowded and the risk of a long squeeze is elevated. This information can help you adjust your kích thước vị thế, set tighter cắt lỗes, or wait for a better entry.

Hợp Đồng Mở Data on Hyperliquid

Hyperliquid provides transparent, trên chuỗi dữ liệu hợp đồng mở for every listed hợp đồng vĩnh viễn market. Because Hyperliquid operates as a fully trên chuỗi sổ lệnh DEX, all dữ liệu hợp đồng mở is verifiable and accurate - unlike sàn giao dịch tập trung where OI figures may be opaque or delayed.

Beacon aggregates and displays this data in an easy-to-read format on the markets page. For each asset, you can see the current open interest in dollar terms, along with price, 24-hour volume, and funding rates. This allows you to quickly scan across all markets to identify where capital is concentrated and where trading opportunities may exist.

Monitoring OI alongside funding rates is particularly powerful. When both OI and funding rates are elevated, it suggests extreme positioning that often precedes a correction. When OI is rising but funding rates remain moderate, it suggests balanced interest from both longs and shorts - a healthier market condition. Learn more about how perpetual futures work to fully understand these dynamics.

Câu Hỏi Thường Gặp

Open interest measures the total number of outstanding (open) contracts at any given time, while khối lượng giao dịch measures the total number of contracts traded during a specific period. Volume counts every trade (opening and closing), while hợp đồng mở only changes when new contracts are created or existing contracts are closed. A high-volume day doesn't necessarily change hợp đồng mở if traders are mostly closing existing vị thế.
It depends. If a new buyer is matched with a new seller, hợp đồng mở increases by one contract. If a buyer is matched with an existing long who is closing their vị thế, hợp đồng mở stays the same. If an existing short covering (closing) is matched with an existing long closing, hợp đồng mở decreases. Only new contracts being created add to hợp đồng mở.
Rising hợp đồng mở alongside rising price is generally considered bullish. It suggests new money is entering the market and new vị thế long are being opened, confirming the uptrend. This combination indicates fresh conviction behind the price move, making it more likely to continue.
Falling hợp đồng mở with falling price typically indicates that long holders are closing their vị thế (taking losses or profits). This is a less bearish signal than falling price with rising hợp đồng mở, because it suggests the selling pressure comes from vị thế unwinding rather than new vị thế short being opened.
Extremely high hợp đồng mở relative to historical norms can signal that a market is overđòn bẩyd and vulnerable to a sharp move in either direction. When hợp đồng mở reaches extreme levels, a cascade of thanh lý becomes more likely. Traders often watch for hợp đồng mở peaks as potential reversal signals, though timing the reversal requires additional analysis.
You can view thời gian thực dữ liệu hợp đồng mở for all Hyperliquid hợp đồng vĩnh viễn markets on Beacon's markets page. Each asset page displays current hợp đồng mở alongside price, volume, and tỷ lệ tài trợ data, giving you a complete picture of market activity.
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