In the ever-changing crypto landscape, investors often find it challenging to accurately predict future market movements. In such situations, you may consider using a One-Cancels-the-Other (OCO)In the ever-changing crypto landscape, investors often find it challenging to accurately predict future market movements. In such situations, you may consider using a One-Cancels-the-Other (OCO)
Learn/Trading Guide/Spot/What is a O...OCO) Order?

What is a One-Cancels-the-Other (OCO) Order?

Jul 16, 2025MEXC
0m
4
4$0.011167+5.22%
Orderly Network
ORDER$0.0282-0.70%

In the ever-changing crypto landscape, investors often find it challenging to accurately predict future market movements. In such situations, you may consider using a One-Cancels-the-Other (OCO) Order: simultaneously placing two orders in opposite directions to help seize opportunities in the market or avoid extreme downturns.

1. One-Cancels-the-Other (OCO) Orders Explained


OCO (One-Cancels-the-Other) orders, also known as selective entrustment orders, combine a stop limit order and a limit order into a single OCO order for placement. When the stop limit order is triggered, or when the limit order is executed / partially executed, the other order is automatically canceled. If either order is manually canceled, the corresponding order is simultaneously canceled as well.


OCO orders aim to secure better execution prices while ensuring buy/sell fulfillment. In spot trading, investors can utilize this trading strategy when they wish to set both a stop limit order and a limit order simultaneously.

2. Advantages of OCO Orders


2.1 Risk Control


Spot OCO orders allow investors to simultaneously set TP/SL orders and limit orders, thereby helping investors better control risk.

2.2 Mechanical Execution


Spot OCO orders are automatically executed by the trading system without the need for manual intervention by investors. This mechanical execution can assist investors in avoiding emotional decision-making and erroneous judgments, enhancing trading discipline.

2.3 Increased Efficiency


By employing an OCO order strategy in spot trading, investors can set both stop-loss and take-profit trigger prices and limit price simultaneously, eliminating the need to set two separate orders. This can save monitoring time and energy, leading to increased trading efficiency.

2.4 Avoidance of Overlapping Trades


A distinctive feature of spot OCO is that when one order is executed, the other order is automatically canceled. This helps avoid overlapping trades, preventing unnecessary risks.

3. Trading Scenarios


The OCO spot order strategy is suitable for trading scenarios that require flexibility in responding to market fluctuations, risk control, and mitigation of uncertainty.

3.1 Buying


  • Traders hope to buy at a lower cost during a pullback but fear missing out if there is no pullback and the price rises. Therefore, if there is no pullback and the price rises, the system needs to buy at the specified price.

  • In this case, the spot OCO order includes a stop-loss buy order and a limit buy order.

3.2 Selling


  • Traders believe there is still some upward potential from the interim high and want to sell at the highest point but fear a direct decline, resulting in profit loss. Therefore, if there is a direct decline, the system needs to sell at the specified price.

  • In this case, the spot OCO order includes a stop-loss sell order and a limit sell order.

3.3 Price Limitation


  • Sell Order: Price (Limit Order) > Current Market Price > Stop-Loss Trigger Price (TP/SL Order)

  • Buy Order: Price (Limit Order) < Current Market Price < Stop-Loss Trigger Price (TP/SL Order)

4. How to Place a OCO Spot Order?


4.1 MEXC Website


4.1.1 Log in to MEXC and Visit the Spot Trading Platform


After entering the official MEXC website, click on [Spot] to open the spot trading interface.


4.1.2 Confirming Buy/Sell Prices


Based on market analysis and your investment plan, determine at what price you want to buy/sell assets.

4.1.3 Setting Parameters


4.1.3.1 When Choosing to Buy Assets

You need to set both stop-loss and limit prices:

  • The stop-loss buy order is the price at which the asset will be automatically purchased when the price rises to a certain level.

  • The limit buy order is the price at which the asset will be automatically purchased when the price falls to a certain level.


4.1.3.2 When Choosing to Sell Assets

Similarly, you need to set both stop-loss and limit prices:

  • The limit sell order is the price at which the asset will be automatically sold when the price rises to a certain level.

  • The stop-loss sell order is the price at which the asset will be automatically sold when the price falls to a certain level.


4.1.4 Place Order


After confirming that the parameters are correct, submit the order.


4.1.5 Order Execution


Once the order is submitted, you need to closely monitor the market conditions. When the price reaches any of the conditions you have set, the system will automatically execute the corresponding buy/sell operation and cancel the other conditional order.


Note

  • In the spot OCO strategy, these two conditional orders will exist as a pair, and once one of the conditions is triggered, the other will be canceled.

  • Tutorials and guides may vary across different operating systems. Please refer to your actual operating system.

4.2 MEXC App


4.2.1 Log in to the MEXC Spot Trading Platform


After entering the MEXC App, tap [Trade] to open the spot trading interface.


4.2.2 Confirm Buy/Sell Prices


Based on market analysis and your investment plan, determine at what price you want to buy/sell assets.

4.2.3 Set Parameters


4.2.3.1 When Choosing to Buy Assets

You need to set both stop-loss and limit prices:

  • The stop-loss buy order is the price at which the asset will be automatically purchased when the price rises to a certain level.

  • The limit buy order is the price at which the asset will be automatically purchased when the price falls to a certain level.


4.2.3.2 When Choosing to Sell Assets

Similarly, you need to set both stop-loss and limit prices:

  • The limit sell order is the price at which the asset will be automatically sold when the price rises to a certain level.

  • The stop-loss sell order is the price at which the asset will be automatically sold when the price falls to a certain level.


4.2.4 Place Order


After confirming that the parameters are correct, submit the order.


4.2.5 Monitor Orders


Once the order is submitted, you need to closely monitor the market conditions. When the price reaches any of the conditions you have set, the system will automatically execute the corresponding buy operation and cancel the other conditional order.


Note

  • In the spot OCO strategy, these two conditional orders will exist as a pair, and once one of the conditions is triggered, the other will be canceled.

  • Tutorials and guides may vary across different operating systems. Please refer to your actual operating system.


5. Summary


Spot OCO (One-Cancels-the-Other) Orders are an investment trading strategy that involves setting two conditional orders, with one automatically canceling the other when one is executed. It is used for risk control and selecting entry points.

Risk Disclaimer: The advantage of the spot OCO strategy lies in its ability to help investors achieve risk control and automate trading. However, the disadvantage is that the strategy may not execute as expected due to intense market fluctuations. When employing an OCO order strategy for spot trading, it is essential to closely monitor market volatility and risks, ensuring that your trading strategy aligns with investment goals and risk tolerance.


Disclaimer: This information does not provide advice on investment, taxation, legal, financial, accounting, consulting, or any other related services. It is not a recommendation to buy, sell, or hold any assets. MEXC Learn provides information for reference only and does not constitute investment advice. Please ensure a full understanding of the risks involved and invest cautiously. User investment activities are independent of this site.
Market Opportunity
4 Logo
4 Price(4)
$0.011167
$0.011167$0.011167
+1.19%
USD
4 (4) Live Price Chart

Popular Articles

View More
Best BVOX Alternatives: 6 Exchanges Compared on Fees, Trust, and Track Record

Best BVOX Alternatives: 6 Exchanges Compared on Fees, Trust, and Track Record

MEXC is the strongest overall BVOX alternative for most traders, with futures at 0% maker and 0.02% taker on BTCUSDT's Special Rate against BVOX's 0.04% and 0.06%, and a 9/10 CoinGecko trust score

RKLB Stock Price Prediction 2026–2030: Neutron, Iridium, Defense and RKLBON Outlook

RKLB Stock Price Prediction 2026–2030: Neutron, Iridium, Defense and RKLBON Outlook

Summary Predicting Rocket Lab (NASDAQ: RKLB) through 2030 requires more than extrapolating its current revenue growth. Rocket Lab is simultaneously developing Neutron, expanding defense programs,

Rocket Lab Iridium Acquisition Explained: What the $8 Billion Deal Could Mean for RKLB

Rocket Lab Iridium Acquisition Explained: What the $8 Billion Deal Could Mean for RKLB

Summary On June 29, 2026, Rocket Lab Corporation (NASDAQ: RKLB) and Iridium Communications (NASDAQ: IRDM) announced a definitive agreement under which Rocket Lab plans to acquire Iridium. The

How to DCA Into SBETON on MEXC: A Step-by-Step Spot DCA Guide

How to DCA Into SBETON on MEXC: A Step-by-Step Spot DCA Guide

Summary Dollar-cost averaging (DCA) is a strategy that divides an investment into multiple purchases instead of committing the full amount at one price. For eligible users interested in SBETON, MEXC

Hot Crypto Updates

View More
How Robinhood's Strategy to Bring Private Wealth On-Chain Created Ethereum's Most Profitable L2

How Robinhood's Strategy to Bring Private Wealth On-Chain Created Ethereum's Most Profitable L2

Overview Robinhood Chain, the Ethereum Layer-2 network built on Arbitrum technology, has become the highest-revenue L2 in the Ethereum ecosystem less than two months after launch. Robinhood launched

Strategy's 7-Week Bitcoin Pause: Inside the $4.65B Reserve, the STRC Buyback, and the Plan to Resume Buying

Strategy's 7-Week Bitcoin Pause: Inside the $4.65B Reserve, the STRC Buyback, and the Plan to Resume Buying

Overview Strategy (NASDAQ: MSTR), the Michael Saylor-chaired firm formerly known as MicroStrategy, has now gone seven weeks without buying Bitcoin. Its last disclosed purchase was 520 BTC on June 22,

Ethereum Strawmap Breakdown: What Vitalik Cut, What He Added, and the Architecture Behind Lean Ethereum

Ethereum Strawmap Breakdown: What Vitalik Cut, What He Added, and the Architecture Behind Lean Ethereum

Overview Ethereum co-founder Vitalik Buterin published a post on X overlaying his 2023 roadmap, the one organized around the Merge, the Surge, the Scourge, the Verge, the Purge and the Splurge, onto

What is dappOS ($DOS) Intent Execution Network Becomes a Web3 AI Operating System

What is dappOS ($DOS) Intent Execution Network Becomes a Web3 AI Operating System

dappOS is a Web3 AI Operating System that allows users to create and deploy customized Web3 applications or complete tasks through simple chat prompts. dappOS positions xBubble as its flagship AI

Trending News

View More
Ethereum Staking Ratio Hits Record 34.4%

Ethereum Staking Ratio Hits Record 34.4%

The Ethereum staking ratio has reached a record 34.4%, rising from approximately 30% at the beginning of 2026, according to Token Terminal data reported on August 4.

Gold Price Breaks $4,300 as Traders Reprice the Fed, Oil Risk, and Safety Demand

Gold Price Breaks $4,300 as Traders Reprice the Fed, Oil Risk, and Safety Demand

Gold price broke $4,300 after weak ADP jobs data and easing Hormuz fears reshaped rate-cut expectations. Here is what traders should watch next.

BIP-110 Bitcoin fork stalls after two blocks

BIP-110 Bitcoin fork stalls after two blocks

The BIP-110 Bitcoin fork began at block 961,632 after nodes enforcing the proposal started rejecting blocks that did not signal support through version bit 4. This rule divergence produced a minority

Harmony ONE Price Plunges After Suspected 4 Billion Token Mint

Harmony ONE Price Plunges After Suspected 4 Billion Token Mint

Harmony’s ONE price plunged after reports of an unauthorized 4 billion-token mint. Here is what the supply shock means for traders.

Related Articles

View More
Spot Market Trading Rules

Spot Market Trading Rules

In cryptocurrency spot trading, beyond price analysis and strategy selection, understanding and following the trading platform's market rules is equally crucial. For MEXC users, each trading pair not

What is a Limit Order?

What is a Limit Order?

In the cryptocurrency market, limit orders serve as a critical trading mechanism, enabling investors to exercise precise control over the execution price of their trades.1. What Is Limit Order?1.1 Def

What are Take-Profit/Stop-Loss Orders? Your Automated Tool for Risk Management and Profit Locking

What are Take-Profit/Stop-Loss Orders? Your Automated Tool for Risk Management and Profit Locking

1. What Is a Take-Profit/Stop-Loss Order? A Take-Profit/Stop-Loss order lets users set a trigger price in advance, along with the price and quantity to buy or sell once the trigger is reached. When th

What Is MEXC Hold and Earn?

What Is MEXC Hold and Earn?

1. What Is MEXC Hold and Earn?MEXC Hold and Earn allows users to generate returns on designated tokens held in their Spot account. The product offers full flexibility: users can trade, withdraw, or us

Sign Up on MEXC
Sign Up & Receive Up to 10,000 USDT Bonus
Is Your Stablecoin Truly Safe?
Is Your Stablecoin Truly Safe?Is Your Stablecoin Truly Safe?
Know the risks of USDT, USDC, OpenUSD & USD1