<img src="https://uploads.bydfi.in/events/cms/BYD.1747354273749.image.png" alt="BYD.1747354273749.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1747354273749.image.png" style=""/>By using this service, you acknowledge that it is provided by Legend Trading, The Leading US Regulated Crypto Trading Firm.BYDFi is not responsible for any content, advertisements, products, services, or materials offered by third-party providers. Additionally, the link does not constitute an endorsement or solicitation of any products or services available through third-party websites.We are not liable for any loss or damage incurred through the use or reliance on any content or services provided by third-party sites.If you encounter any issues while using this service, please reach out to the <a href="https://support.legendtrading.com/hc/en-us/requests/new" target="_blank" style="text-align: start;">Legend Trading support team</a> or BYDFi Customer Support for prompt assistance.

Disclaimer (Legend Trading)

<img src="https://uploads.bydfi.in/events/cms/BYD.1744280799001.image.png" alt="BYD.1744280799001.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1744280799001.image.png" style="width: 100%;"/>To profit from a contract transaction of encrypted currency assets, you can choose to go long or short on the underlying trading pairs based on market price fluctuations. <h3>How to Go Long</h3> Going long means that investors anticipate the market will rise in the future and purchase a certain number of bullish contracts on encrypted currency assets. When you expect the contract price to rise, you can go long through contract trading. The operation process is as follows: transfer a part of the USDT to the USDT-M account as margin, select the required leverage, order type, and buy a certain number of contracts. When the price of the long contract rises, sell it at a high price to generate income; in other words, buy low and sell high. Taking BTC contract trading as an example, we buy a contract worth 1 BTC at the price of $5,000 per coin. If the price of BTC rises to $5,500 per coin, we sell the contract worth 1 BTC to generate a profit of $500. <h3>How to Go Short</h3> Going short means that investors anticipate the market will fall in the future and sell a certain number of bearish contracts on encrypted currency assets. When you expect the contract price to fall, you can short the contract through contract trading. The operation process is as follows: transfer a part of the USDT to the USDT-M account as margin, select the required leverage and order type, and sell a certain number of contracts. When the price of the short contract falls, buy it at a low price to generate income; in other words, sell high and buy low. Taking BTC contract trading as an example, we sell a contract worth 1 BTC at the price of $5,000 per coin. If the price of BTC falls to $4,500 per coin, we buy the contract worth 1 BTC to generate a profit of $500.

How to Go Long/Short

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 When engaging in transactions on a decentralized exchange (DEX), encountering issues such as being unable to sell or transaction failures can be confusing. Here are some common causes and their solutions:
 
 Possible Causes
 1. Insufficient Gas Fees &nbsp;
 Description: Gas fees can change after a transaction is submitted. For instance, if the gas fee is 16 when the transaction is submitted and your balance is 20, but before the transaction is confirmed, the gas fee rises to 22, causing the transaction to fail. &nbsp;
 Impact: The transaction cannot be confirmed on the blockchain.
 2. Slippage Too Low &nbsp;
 Description: When a token experiences frequent trading and high price volatility, setting a low slippage tolerance can prevent the transaction price from matching the market price, ultimately causing the transaction to fail. &nbsp;
 Impact: The transaction is either canceled or cannot be executed.
 3. Trap Tokens (Honeypot Tokens) &nbsp;
 Description: Some tokens have special smart contract designs that restrict users from selling or trading them. In certain cases, specific addresses may even be blacklisted. &nbsp;
 Impact: The token cannot be converted or cashed out.
 4. Insufficient Liquidity &nbsp;
 Description: The liquidity pool does not have enough funds or tokens to meet your trading requirements. &nbsp;
 Impact: The transaction cannot be completed.
 
 Solutions
 1. &nbsp;Ensure Sufficient Gas Fees &nbsp;
 Check the current network gas fees and make sure your balance is enough to cover the transaction costs. It's recommended to execute trades when gas fees are lower.
 2. Adjust Slippage Tolerance &nbsp;
 In the transaction settings, increase the slippage tolerance range (e.g., from 0.5% to 1% or higher) to accommodate price fluctuations and increase the likelihood of a successful transaction.
 3. Verify Token Mechanisms &nbsp;
 Research the smart contract mechanisms of tokens to avoid investing in honeypot tokens that restrict trading. Check if the token has blacklisted addresses and ensure that it can be traded without &nbsp; &nbsp; issues.
 4. Check Liquidity Pool Status &nbsp;
 Confirm that the liquidity pool has sufficient tokens available for your swap. If liquidity is low, you may need to wait for the pool to replenish or try using another platform.
 
 Conclusion
 Transaction failures can stem from various factors, including gas fees, slippage settings, token restrictions, or insufficient liquidity. Before making a transaction, be sure to check the relevant settings and token conditions to increase the likelihood of success and avoid unnecessary losses.
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Why Can't I Sell My Tokens? Possible Causes and Solutions

<img src="https://uploads.bydfi.in/events/cms/BYD.1744342153771.image.png" alt="BYD.1744342153771.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1744342153771.image.png" style="width: 100%;"/>Differences in Trading Mechanisms Between CEX and DEXBefore understanding why the execution price might differ from the expected price, it's important to distinguish the trading mechanisms of centralized exchanges (CEX) and decentralized exchanges (DEX). CEX Order Book MechanismPrice Determination: CEX platforms use an order book mechanism where limit orders are executed at the specified price, typically without significant slippage.Matching System: The order book automatically matches buy and sell orders based on market conditions, enabling instant transactions. DEX Automated Market Maker (AMM) ModelPricing Formula: DEX platforms utilize liquidity pools and the "constant product formula" (x * y = k) to dynamically adjust prices.Price Deviation: Large trades can alter the token ratios in the pool, causing the actual execution price to diverge from the expected price, particularly in situations with low liquidity. Main Reasons for Price DeviationSlippage Definition<ul><li style="line-height: 1;">Slippage is the difference between the expected price and the actual execution price of a trade. </li><li style="line-height: 1;">Cause: Each trade changes the ratio of tokens in the liquidity pool, and slippage becomes more noticeable when liquidity is low. </li><li style="line-height: 1;">Controlling Slippage: Traders can manage slippage by setting a tolerance range for slippage and choosing liquidity pools with deeper liquidity.</li></ul> Liquidity Issues Liquidity Depth<ul><li style="line-height: 1;">A deep liquidity pool ensures small price changes during transactions, while insufficient liquidity leads to significant price fluctuations. </li><li style="line-height: 1;">Impact of Large Trades: In an AMM model, large trades shift the token ratio, causing the price curve to change.</li></ul> Gas Fees and Transaction Priority Gas Fees Impact<ul><li style="line-height: 1;">Low gas fees can delay a transaction, especially in volatile markets, potentially leading to price deviation. </li><li style="line-height: 1;">Network Congestion: When the network is congested, transaction execution takes longer, which may cause the final price to differ from the expected price.</li></ul> Ways to Minimize Price DeviationChoose Liquidity-Rich Pools: Ensure that the liquidity pool has enough assets to support the transaction.Set a Slippage Tolerance: Set a reasonable slippage tolerance based on the trade volume to prevent excessive deviation or failed transactions.Prioritize Small Trades: Breaking down large trades into smaller transactions can mitigate the impact of large trades on price.Use Fast Mode: Opt for fast or priority modes during peak trading times to reduce delays that could cause price deviation. Characteristics of the AMM ModelPrice Fluctuation Curve: Price changes follow a curved distribution, with larger trades resulting in more significant price fluctuations.PImpact of Large Trades: Large trades magnify price deviation. It’s recommended to break down larger trades to reduce this effect. ConclusionThe primary reasons for discrepancies between the expected and actual execution prices in limit orders stem from the AMM model's characteristics, insufficient liquidity depth, and issues related to slippage and gas fees. To minimize unnecessary losses, traders should ensure they understand the liquidity status of a pool, set reasonable slippage tolerance, and select appropriate trading modes.

Why the Execution Price of a Limit Order May Differ from the Expected Price

BYDFi aims to make crypto accessible worldwide. However, due to regulatory and compliance restrictions, certain regions are not eligible to buy crypto using a credit or debit card.This article outlines the complete list of restricted countries and regions where credit/debit card payments for crypto purchases are not supported on BYDFi. <h2>Why Are Credit/Debit Card Purchases Restricted?</h2>Credit and debit card transactions for purchasing cryptocurrencies are subject to financial regulations and card issuer policies. To remain compliant with international standards and local regulations, BYDFi blocks card purchases from certain jurisdictions. <h2>🌐 List of Countries/Regions Restricted from Using Credit or Debit Cards</h2>The following countries and regions cannot use credit or debit cards to purchase crypto on BYDFi:<ul><li>United Kingdom</li><li>Canada</li><li>Ascension</li><li>Afghanistan</li><li>Burkina Faso</li><li>Bolivia</li><li>Brazil</li><li>Botswana</li><li>Belarus</li><li>Congo (Democratic Republic)</li><li>Central African Republic</li><li>Ivory Coast</li><li>Cameroon</li><li>Cuba</li><li>Ethiopia</li><li>Ghana</li><li>Haiti</li><li>Iraq</li><li>Iran</li><li>Kenya</li><li>Cambodia</li><li>North Korea</li><li>Laos</li><li>Lebanon</li><li>Sri Lanka</li><li>Libya</li><li>Mali</li><li>Myanmar</li><li>Mozambique</li><li>Nigeria</li><li>Nicaragua</li><li>Netherlands</li><li>Pakistan</li><li>Poland</li><li>Palestine</li><li>Russia</li><li>Sudan</li><li>Somalia</li><li>South Sudan</li><li>Syria</li><li>Thailand</li><li>Tunisia</li><li>Trinidad and Tobago</li><li>Ukraine</li><li>Venezuela</li><li>Yemen</li><li>Zimbabwe</li></ul> <h2>🔍 How to Check If Your Country Is Eligible</h2>To verify whether you can use a credit/debit card:<ol><li>Go to the One-Click Buy page.</li><li>Select your fiat currency and desired cryptocurrency.</li><li>Attempt to proceed with a card payment—if your country is restricted, the credit card option will not be displayed.</li></ol> <h2>📌 Need Help?</h2>If you’re unsure whether your region is supported or need help completing a purchase, contact <a href="mailto:cs@bydfi.com" target="_blank">BYDFi Customer Support</a> for 24/7 assistance or visit our <a href="https://www.bydfi.com/en/support" target="_blank">Help Center</a>.

List of Restricted Countries for Buying Crypto with Credit/Debit Card

<h3>Introduction to Risk Limit on BYDFi</h3>The risk limit system on BYDFi plays a crucial role in managing risk and helping traders avoid excessive exposure to market volatility. This system automatically adjusts based on the trader's position size and leverage, ensuring a balanced and safer trading environment. The risk limit reduces the maximum allowable leverage as the value of a trader's position increases. In simpler terms, as traders take on larger positions, the initial margin requirement gradually increases, offering a protective measure against potential losses, particularly in volatile market conditions. <h3>How It Works</h3>Each trading pair on BYDFi has its own specific margin requirements. The risk limit system adjusts these requirements based on the trader's position size. As the position value rises, the initial margin and maintenance margin requirements are adjusted accordingly. This ensures that traders operate within a defined risk profile and prevents them from over-leveraging their positions.If a trader's position value increases, the system will automatically recalculate the risk limit based on the size of the position and any active orders. If no active positions or orders are held, the risk limit will default to the lowest tier. <h3>Risk Limit Enforcement</h3>To prevent excessive market risk concentration and manipulation, BYDFi has set limits on the position size for each individual user. Any open orders that exceed the limit will be rejected. Additionally, we strictly prohibit users from circumventing the position limits in any way (such as using multiple accounts, concealing identities, third-party trading, or exploiting system vulnerabilities) to ensure market fairness. <h3>How to View Risk Limit Information</h3>To view the risk limit information for all trading pairs, click on this icon on the perpetual contract trading page, and then select '<a href="https://www.bydfi.com/en/swap-info?page=5&type=usdt" target="_blank">Risk Limit</a>.'<img src="https://uploads.bydfi.in/events/cmsBYD.1742280551710.image.png" alt="BYD.1742280551710.image.png" data-href="https://uploads.bydfi.in/events/cmsBYD.1742280551710.image.png" style="width: 100%;"/>Select the trading pair you would like to view, and you can see the complete risk limit information. <img src="https://uploads.bydfi.in/events/cmsBYD.1742283104703.perpetual.png" alt="BYD.1742283104703.perpetual.png" data-href="https://uploads.bydfi.in/events/cmsBYD.1742283104703.perpetual.png" style="width: 100%;"/> <h3></h3><h3>Risk Parameter Adjustment</h3>BYDFi regularly evaluates market liquidity to ensure stable trading conditions. In the event of significant market fluctuations, the risk limit may be adjusted, affecting the following key risk parameters:<ul><li>Initial Margin Rate (IMR)</li><li>Maintenance Margin Rate (MMR)</li><li>Maximum Leverage Allowed</li><li>Position Value Limit</li><li>MMQC</li></ul><h3></h3> <h3>Disclaimer</h3>BYDFi reserves the right to adjust the risk limit and associated risk parameters (including Initial Margin Rate, Maintenance Margin Rate, Maximum Leverage Allowed, Position Limit, and MMQC) in response to changes in market conditions. These adjustments are part of our ongoing effort to maintain a secure and stable trading environment.Users are encouraged to regularly monitor official announcements from BYDFi regarding any changes to the risk parameters. It is the responsibility of the user to stay informed of these updates. BYDFi will not be held liable for any losses or discrepancies arising from users' failure to review such announcements or take appropriate action based on these changes.During the adjustment process, BYDFi's system will perform a risk assessment of your account. If the post-adjustment risk is deemed to be low, the new parameters will be automatically applied, which may result in changes to margin requirements and other associated risks. Please trade responsibly and ensure that you understand the implications of these adjustments.

Risk Limit (USDT-M and COIN-M Contracts)

In the digital asset market, contract trading has become a preferred choice for many cryptocurrency investors due to its flexible leverage mechanism and the ability to open both long and short positions. Compared to spot trading, contract trading allows traders to amplify potential returns with lower capital investment, making it a highly strategic and challenging endeavor. As a globally leading cryptocurrency trading platform, BYDFi provides a stable trading environment and a variety of auxiliary features to enhance both efficiency and security in contract trading.This article will take the <a href="https://www.bydfi.com/en/swap/btc-usdt" target="_blank">BYDFi web-based contract trading page</a> as an example to comprehensively introduce key auxiliary features, helping you quickly grasp operational techniques and configuration recommendations. <h2>Trading Settings</h2>Upon entering the contract trading page, click the settings icon in the upper right corner to access the settings page. <img src="https://uploads.bydfi.in/events/cms/BYD.1743432349302.image.png" alt="BYD.1743432349302.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743432349302.image.png" style="width: 100%;"/>You can personalize your trading mode and order placement preferences, which include:<ul><li>Position Mode: Supports both hedge mode and one-way mode. Hedge mode allows holding both long and short positions simultaneously for flexible strategy adjustments.</li><li>Price Protection: Prevents adverse price execution due to market volatility, enhancing risk management.</li><li>Flash Order: Enables instant market orders directly from the candlestick chart, allowing for rapid position opening and closing.</li><li>Order Confirmation: Provides clear prompts before placing an order, reducing the risk of misoperation.</li></ul><img src="https://uploads.bydfi.in/events/cms/BYD.1743432396323.image.png" alt="BYD.1743432396323.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743432396323.image.png" style="width: 50%;"/><h3></h3><h2>Notification Settings</h2>In a highly volatile market, staying informed about position changes and market movements is crucial. BYDFi offers multiple smart notification options, including:<ul><li>Liquidation Alerts: Triggers a warning notification when the margin ratio falls below a preset threshold (up to once every 30 minutes per position).</li><li>Funding Fee Notice: Sends email and in-platform notifications if the funding rate exceeds the user-defined threshold.</li><li>Triggered Orders & Stop-Loss/Take-Profit Trigger Notification: Notifies users of order execution success or failure in real-time (up to 20 times daily).</li></ul>These notification mechanisms apply to both USDT-M and COIN-M contracts, ensuring you never miss any critical trade updates.<img src="https://uploads.bydfi.in/events/cms/BYD.1743432853937.image.png" alt="BYD.1743432853937.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743432853937.image.png" style="width: 50%;"/><h3></h3><h2>Trading Alerts & Price Notifications</h2>BYDFi supports trading alerts that provide real-time feedback through pop-ups and sound notifications when key events occur, such as order execution, order cancellation, or forced liquidation.Additionally, you can enable 'Price Notifications' in the upper right corner of the trading page:<ul><li>Custom Alert Conditions: Set alerts based on trading pairs, price fluctuations, alert frequency, and notification methods.</li><li>Alert List Management: Easily enable, disable, or batch delete alerts as needed.</li></ul> <h2>Quick Trading via Candlestick Chart</h2>The BYDFi contract trading page supports quick operations directly from the candlestick chart, including:• Creating, modifying, and canceling limit orders<img src="https://uploads.bydfi.in/events/cms/BYD.1743433282006.image.png" alt="BYD.1743433282006.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743433282006.image.png" style="width: 100%;"/>• One-click market close for open positions<img src="https://uploads.bydfi.in/events/cms/BYD.1743433350234.image.png" alt="BYD.1743433350234.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743433350234.image.png" style="width: 100%;"/>• Directly setting take-profit and stop-loss levels<img src="https://uploads.bydfi.in/events/cms/BYD.1743433403788.image.png" alt="BYD.1743433403788.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743433403788.image.png" style="width: 100%;"/>This intuitive chart-based trading significantly improves order execution and position adjustment efficiency. We recommend utilizing the platform's educational resources to master these features. <h2>Other Auxiliary Tools</h2><h3>Drawing Tools</h3>Traders can draw trend lines, support, and resistance levels directly on the candlestick chart for technical analysis.<img src="https://uploads.bydfi.in/events/cms/BYD.1743433647863.image.png" alt="BYD.1743433647863.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743433647863.image.png" style="width: 100%;"/><h3>Snapshot Sharing</h3>After completing your chart analysis, generate a technical analysis snapshot for easy sharing on social media. Additionally, users can share historical profit and loss records to showcase their trading performance.<img src="https://uploads.bydfi.in/events/cms/BYD.1743433701765.image.png" alt="BYD.1743433701765.image.png" data-href="https://uploads.bydfi.in/events/cms/BYD.1743433701765.image.png" style=""/> <h2>Why Choose BYDFi for Contract Trading?</h2>BYDFi offers the following key advantages:<ul><li>Up to 200x leverage, allowing flexible risk and reward management</li><li>Seamless trading experience with a stable and low-latency system</li><li>Support for multiple contract types, catering to diverse trading strategies</li><li>Competitive fees and deep liquidity for efficient order execution</li></ul> <h2>Conclusion</h2>Contract trading requires not only strong execution skills but also solid risk management and auxiliary tools. With BYDFi’s comprehensive set of trading features, you can trade more efficiently and securely in the leveraged market. Log in to <a href="https://www.bydfi.com/" target="_blank">BYDFi</a> now and experience the ultimate trading toolkit for professionals! 📌 Disclaimer: This article is for informational purposes only and does not constitute investment advice. Contract trading carries significant risks—please carefully assess your financial situation and risk tolerance before investing.

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