1. Contract trading refers to an agreement between buyers and sellers to receive a certain amount of an asset at a specified price at a specified time in the future. In addition to coin/spot trading to earn income from rising coin prices, investors can buy long or sell short contracts to gain income from the rise and fall of the "underlying" price. (1) Preparation Funds transfer: Open OuYi OKX APP, click on [Assets] - [Funds Transfer], select the currency to [USDT] for example - from [Funds Account] - to [Trading Account] - enter the transfer [Quantity] - [ OK]. Account Information Settings: Click on the icon in the top left corner of the trading page - [Account Information] - [Transaction Settings] - select [Account Mode] [Trading Unit] and other options to set. (2) Perpetual contracts ①Bullish, open long and close long When you predict that the market will rise, you can choose to open a long position. Here, take the BTCUSDT perpetual contract as an example, go to introduce the [buy to open more] and [sell to close more]. Buy to open long. Enter the [Trading] page, - click on the top left corner of the currency pair box [BTC/USDT]. Under the new page click to switch the trading mode - [perpetual] - [USDT contract] - select [BTCUSDT perpetual]. Select [Open Position] - [Full Position / Position by Position] - [Limit Order] - Select [Leverage] - Enter [Price], [Quantity] - Click [Buy to Open Long] - [OK]. When the market price reaches your expectation, the system will send in the market with the pre-set commission price to close the deal. Sell to close long. Euronext OKX perpetual contracts can be closed in two places: the trading page and the specific position page, users can choose according to their situation. Click [Position] - Select the specific position to be closed and click [Close] - Enter [Price] or click [Market Price] - [Quantity] - Click [Close]. The user can also choose to close a position by selecting [Stop Loss & Take Profit], thus stopping the loss in time to reduce the loss or stopping the profit in time to lock in the profit. Select the specific position to be closed by clicking [Stop Loss & Take Profit] - Enter [Take Profit Trigger Price], [Stop Loss Trigger Price], [Quantity] - Click [OK]. ②Be bearish, open and close short When you predict that the market will fall, you can choose to open a short position. Open a short single, short single and above open a long single, short single operation path is the same. In the open short single need to click on the transaction page [sell open short] (3) Delivery Contracts The OKX delivery contract is a contract product settled by digital assets, investors can buy long or sell short to gain the price of digital assets up or down, the delivery contract has a fixed delivery period, respectively, the current week, the next week, the current quarter and the next quarter. ①Bullish, open long and close long When you predict that the market will rise, you can choose to open a long position. Here we take [BTCUSDT0806 current week-USDT contract] as an example to go over [buy to open long] and [sell to close long]. Buy long: enter the [Trade] page - click on the currency pair box [BTC/USDT] in the top left corner. Under the new page click to switch trading mode - [Delivery] - [USDT Contract] - select [BTCUSDT0806 Current Week-USDT Contract]. Select [Open Position] - [Full Position / Position by Position] - [Limit Order] - Select [Leverage Multiplier] - Enter [Price], [Quantity] - Click [Buy to Open Long] - [OK]. When the market price reaches your expectation, the system will send in the market with the pre-set commission price to match the transaction. Sell to close long: Euromoney OKX perpetual contracts can be closed in two places: the trading page and the specific position page, users can choose according to their own situation. Here is a demonstration of the operation to close a long position on the specific position page: click [Position] - select the specific position to be closed and click [Close] - enter [Price] or click [Market Price] - [Quantity] - click [Close]. ②Be bearish, open and close short When you predict that the market will fall, you can choose to open a short position. Open short single, short single and above open long single, short single operation path is the same. When opening a short order you need to click [Sell to open short] on the trading page (4) Options contracts An option is a right that can be exercised at a certain time in the future. After buying an option, if the exercise of the right on the expiry date is beneficial to the buyer, the buyer will receive the corresponding income through the exercise of the right, and the seller needs to cooperate with the buyer to make the corresponding expenses. If the option is exercised on the expiry date to the buyer's disadvantage, the buyer may choose not to exercise the option and the seller will not be required to pay for the exercise of the option. OKX offers options contracts on Bitcoin and Ether as underlying assets, allowing users to buy and sell call options and put options. ①Call Options When you predict that the market will rise in the future, you can choose a call option. Buy to open a position: more experienced professional users can choose the T-quote model with a wider variety of option contract types. Take BTC options as an example: open the APP and enter the [Trading] page - click on the top left corner of the coin pair box [BTC/USDT]; under the new page click to switch the trading mode - [Options] - select the underlying asset [BTC] - [All Options] -Click on [Calls] - Select the exercise date - Drop down to select the option contract at different price levels. Select [Full Position / Position by Position] - [Limit Order] - Enter [Price], [Quantity] - Click [Buy]. Sell to close a position: Euronext OKX options contracts can be closed in two places: the trading page and the specific position page. Here is an example of how to close a position on the specific position page. Click on [Position] - select the specific position to be closed, click on [Close] - enter [Price], [Quantity] - click on [Close]. ②Put Options When you predict that the market will fall in the future, you can choose a put option. The procedure for opening and closing a put option is the same as that for opening and closing a call option. To open a position in a put option, you need to click [Sell] on the trading page. (5) Contract FAQs What is the margin rate? The margin rate is an indicator of the safety of a position, the higher the margin rate, the safer the position. So, how is the margin rate calculated? We have divided it into single currency margin mode - full position, cross currency margin mode - full position, and single/cross currency margin mode - position by position to show the calculation method respectively. ① Single currency margin mode, full position Margin rate = (balance in full position in that currency + full position gain - number of pending orders to sell in that currency - number of options to buy in that currency - number of positions to open in that currency on a position-by-position basis - all pending order fees) / (maintenance margin + burst fees). The Maintenance Margin is the sum of the Leveraged Debit Maintenance Margin, the Delivery Maintenance Margin, the Perpetual Maintenance Margin and the Options Maintenance Margin, taking into account the Pending Orders; the Explosion Fee is the sum of the Leveraged Debit Fee, the Delivery Fee, the Perpetual Fee and the Options Fee. This is set to avoid the risk of a sudden change in the risk level of the account after a pending order has been filled, which could lead to a blow out. Exposure Fee = Leveraged Debit Fee + Delivery Fee + Options Fee where Leveraged Borrowing Fee = value of borrowed position * user taker rate; Delivery Perpetual Fee = value of delivered perpetual position * user taker rate; Option Fee = value of option position * user taker rate. ② Cross-currency margin model, full position trading Margin Rate = Effective Margin / (Maintenance Margin + Reduction Fee) Maintenance margin is calculated based on (number of positions held + number of open pending orders) Reduction fee is calculated based on (number of positions + number of open pending orders) (iii) Single/cross currency margin model, position by position Long positions: Margin rate = [position equity - (liabilities + interest) / marker price] / (maintenance margin + handling fee) Short position: Margin rate = [position assets - | liabilities + interest| * marker price] / (maintenance margin + handling fee) What is a reduced position and what is a mandatory close out (force close)? Under the full margin system, a position held by a user will trigger a position reduction or a position blow-out when the margin rate is less than or equal to the maintenance margin rate + closing commission rate if the latest traded price moves in the opposite direction. Under the position-by-position margin system, if the margin rate of a user's position is less than or equal to the maintenance margin rate + closing commission rate when the latest traded price moves in the opposite direction, this will trigger a position reduction or burst. When the user's position is at level 3 or above, if the margin rate of the position is lower than the maintenance margin rate + closing commission rate required for the current level, but still higher than the maintenance margin rate + closing commission rate for the lowest level, the user's entire position will not be forced to close directly. The system will calculate the number of open positions required to reduce the position by two notches and perform a partial reduction of the position. After successful downgrade, if the margin rate meets the maintenance margin rate requirement for the new tranche, the partial position reduction will stop; if it still does not meet the maintenance margin rate requirement for the new tranche, the partial position reduction process will continue to cycle. When the user's position is at gearing 2 or below and the margin rate is lower than the maintenance margin rate + closing commission rate required for the gearing; or when the user's position is at gearing 3 or above but the margin rate is lower than the maintenance margin rate + closing commission rate required for gearing 1, the system will directly delegate the contract (full position) / the position (position by position) at the bankruptcy price (the price at which the margin rate is zero) All sheets are entrusted to the liquidation engine. This early liquidation mechanism is designed to avoid the adverse effects of cascading liquidation and position penetration (positions that cannot be filled after liquidation) due to the high volatility of digital currencies. After triggering a forced closeout, the strong closeout engine will forcefully take over the burst position, at which point the user's strong closeout loss will be equal to the loss of the margin rate of the position to 0, with the maximum loss not exceeding the total margin of the burst position. (6) Is there still an apportionment mechanism for trading OKX contracts? There is no apportionment system on the OKX platform at present, instead there is an automatic position reduction mechanism. Auto-Deleveraging, or ADL for short, is a counterparty forced position closing mechanism to control the overall risk of the platform when extreme market conditions or force majeure factors lead to insufficient or rapidly declining risk reserves. The current sharp drop is a straight line drop of 30% from the peak risk reserve within 8 hours and the platform may subsequently adjust according to market conditions. After the ADL is triggered, the platform will no longer use the method of handling users' strong closeout and strong reduction positions by listing orders to the market and waiting for a suitable price to appear for aggregated transactions, but will instead directly find the top-ranked counterparty account and transact directly with the counterparty account at the prevailing marked-to-market price. Upon completion, the counterparty account's position in the relevant contract is reduced and the proceeds of the position are transferred to the account balance. After the automatic position reduction mechanism has been used to deal with the loss of the penetration position, no further sharing will occur on the platform. When a user's position has been automatically reduced, you will receive an SMS and email notification of the position reduced and the price at which the position was reduced. You can also check the billing statement for the reduced position on the Order Centre page, with the billing type being Automatic Position Reduction.

2. The above information is only about the basics of cryptocurrency, which is related to whether we can make money through cryptocurrency. In addition to increasing your income by scientific methods, cryptocurrency money making is also about finding ways to save money. The handling fees are small, but they must not be ignored. I have calculated that with frequent transactions and long trading hours, the accumulation of fees can add up to more than 10,000 U a year. Next I will introduce a few common ways to reduce fees on large trading platforms. (1) Lowering Binance's fees Binance is currently the world's largest digital currency exchange, and you must sign up for Binance if you want to speculate on coins. The transaction fee is deducted from the assets received. For example, if you buy Ethereum/USDT, the fee is paid in Ethereum. If you sell Ethereum/USDT, the commission is paid in USDT. Example. You place an order for 10Ethereum at a price of USD3,452.55 per share. Transaction fee = 10Ethereum0.1% = 0.01Ethereum Or you place an order to sell 10Ethereum at 3,452.55 USDT per share. Transaction fee = (10Ethereum3,452.55USDT)*0.1% = 34.5255USDT What many people do not know is that the Binance transaction fee can also be reduced. If you want to reduce your Binance trading fees, you must use the invitation link below or use the invitation code "Q022W7SC" to register. https://accounts.binance.com/en/register?ref=Q022W7SC

(2) Reducing OKX fees OKX is a professional digital currency trading platform loved by many users, and its transaction fees can be reduced. Depending on the volume of transactions, OKX divides its users into two levels: normal and professional. Ordinary users are graded according to their OKB positions, while professional users are graded according to their trading volume and asset size. The different tiers determine the trading fees for the next trading day. When calculating the fee levels, if the coin trading volume, total trading volume of delivery and perpetual contracts (USDT delivery contract, coin-based delivery contract, USDT perpetual contract, coin-based perpetual contract), option contract trading volume, and asset volume meet the conditions of different fee levels, users will enjoy the fee discount of the highest level. First method: OKX has an official maximum savings rate of 20%. Use the link below to register with OKX and save 20% on fees. https://www.ouyi.business/join/BTC1ETH Second method: Open the OKX website and enter "BTC1ETH" in the "Invitation Code" on the registration page to see the cashback percentage: 20% at the bottom. Be sure to enter this invitation code, otherwise you can not get 20% cashback percentage. (3) Reduce FTX fees FTX is currently a very fast-growing, contract players more exchange, you must register FTX if you play the contract. if you want to reduce the FTX transaction fees, you must use the following invitation link to register. https://ftx.com/referrals#a=121031692 3, trading road is long, together with forward Want to know more about how to reduce the commission? telegram: btcethcool We have set up a community dedicated to researching trading, add telegram friends to pull you into the community.

1. Contract trading refers to an agreement between buyers and sellers to receive a certain amount of an asset at a specified price at a specified time in the future. In addition to coin/spot trading to earn income from rising coin prices, investors can buy long or sell short contracts to gain income from the rise and fall of the "underlying" price. (1) Preparation Funds transfer: Open OuYi OKX APP, click on [Assets] - [Funds Transfer], select the currency to [USDT] for example - from [Funds Account] - to [Trading Account] - enter the transfer [Quantity] - [ OK]. Account Information Settings: Click on the icon in the top left corner of the trading page - [Account Information] - [Transaction Settings] - select [Account Mode] [Trading Unit] and other options to set. (2) Perpetual contracts ①Bullish, open long and close long When you predict that the market will rise, you can choose to open a long position. Here, take the BTCUSDT perpetual contract as an example, go to introduce the [buy to open more] and [sell to close more]. Buy to open long. Enter the [Trading] page, - click on the top left corner of the currency pair box [BTC/USDT]. Under the new page click to switch the trading mode - [perpetual] - [USDT contract] - select [BTCUSDT perpetual]. Select [Open Position] - [Full Position / Position by Position] - [Limit Order] - Select [Leverage] - Enter [Price], [Quantity] - Click [Buy to Open Long] - [OK]. When the market price reaches your expectation, the system will send in the market with the pre-set commission price to close the deal. Sell to close long. Euronext OKX perpetual contracts can be closed in two places: the trading page and the specific position page, users can choose according to their situation. Click [Position] - Select the specific position to be closed and click [Close] - Enter [Price] or click [Market Price] - [Quantity] - Click [Close]. The user can also choose to close a position by selecting [Stop Loss & Take Profit], thus stopping the loss in time to reduce the loss or stopping the profit in time to lock in the profit. Select the specific position to be closed by clicking [Stop Loss & Take Profit] - Enter [Take Profit Trigger Price], [Stop Loss Trigger Price], [Quantity] - Click [OK]. ②Be bearish, open and close short When you predict that the market will fall, you can choose to open a short position. Open a short single, short single and above open a long single, short single operation path is the same. In the open short single need to click on the transaction page [sell open short] (3) Delivery Contracts The OKX delivery contract is a contract product settled by digital assets, investors can buy long or sell short to gain the price of digital assets up or down, the delivery contract has a fixed delivery period, respectively, the current week, the next week, the current quarter and the next quarter. ①Bullish, open long and close long When you predict that the market will rise, you can choose to open a long position. Here we take [BTCUSDT0806 current week-USDT contract] as an example to go over [buy to open long] and [sell to close long]. Buy long: enter the [Trade] page - click on the currency pair box [BTC/USDT] in the top left corner. Under the new page click to switch trading mode - [Delivery] - [USDT Contract] - select [BTCUSDT0806 Current Week-USDT Contract]. Select [Open Position] - [Full Position / Position by Position] - [Limit Order] - Select [Leverage Multiplier] - Enter [Price], [Quantity] - Click [Buy to Open Long] - [OK]. When the market price reaches your expectation, the system will send in the market with the pre-set commission price to match the transaction. Sell to close long: Euromoney OKX perpetual contracts can be closed in two places: the trading page and the specific position page, users can choose according to their own situation. Here is a demonstration of the operation to close a long position on the specific position page: click [Position] - select the specific position to be closed and click [Close] - enter [Price] or click [Market Price] - [Quantity] - click [Close]. ②Be bearish, open and close short When you predict that the market will fall, you can choose to open a short position. Open short single, short single and above open long single, short single operation path is the same. When opening a short order you need to click [Sell to open short] on the trading page (4) Options contracts An option is a right that can be exercised at a certain time in the future. After buying an option, if the exercise of the right on the expiry date is beneficial to the buyer, the buyer will receive the corresponding income through the exercise of the right, and the seller needs to cooperate with the buyer to make the corresponding expenses. If the option is exercised on the expiry date to the buyer's disadvantage, the buyer may choose not to exercise the option and the seller will not be required to pay for the exercise of the option. OKX offers options contracts on Bitcoin and Ether as underlying assets, allowing users to buy and sell call options and put options. ①Call Options When you predict that the market will rise in the future, you can choose a call option. Buy to open a position: more experienced professional users can choose the T-quote model with a wider variety of option contract types. Take BTC options as an example: open the APP and enter the [Trading] page - click on the top left corner of the coin pair box [BTC/USDT]; under the new page click to switch the trading mode - [Options] - select the underlying asset [BTC] - [All Options] -Click on [Calls] - Select the exercise date - Drop down to select the option contract at different price levels. Select [Full Position / Position by Position] - [Limit Order] - Enter [Price], [Quantity] - Click [Buy]. Sell to close a position: Euronext OKX options contracts can be closed in two places: the trading page and the specific position page. Here is an example of how to close a position on the specific position page. Click on [Position] - select the specific position to be closed, click on [Close] - enter [Price], [Quantity] - click on [Close]. ②Put Options When you predict that the market will fall in the future, you can choose a put option. The procedure for opening and closing a put option is the same as that for opening and closing a call option. To open a position in a put option, you need to click [Sell] on the trading page. (5) Contract FAQs What is the margin rate? The margin rate is an indicator of the safety of a position, the higher the margin rate, the safer the position. So, how is the margin rate calculated? We have divided it into single currency margin mode - full position, cross currency margin mode - full position, and single/cross currency margin mode - position by position to show the calculation method respectively. ① Single currency margin mode, full position Margin rate = (balance in full position in that currency + full position gain - number of pending orders to sell in that currency - number of options to buy in that currency - number of positions to open in that currency on a position-by-position basis - all pending order fees) / (maintenance margin + burst fees). The Maintenance Margin is the sum of the Leveraged Debit Maintenance Margin, the Delivery Maintenance Margin, the Perpetual Maintenance Margin and the Options Maintenance Margin, taking into account the Pending Orders; the Explosion Fee is the sum of the Leveraged Debit Fee, the Delivery Fee, the Perpetual Fee and the Options Fee. This is set to avoid the risk of a sudden change in the risk level of the account after a pending order has been filled, which could lead to a blow out. Exposure Fee = Leveraged Debit Fee + Delivery Fee + Options Fee where Leveraged Borrowing Fee = value of borrowed position * user taker rate; Delivery Perpetual Fee = value of delivered perpetual position * user taker rate; Option Fee = value of option position * user taker rate. ② Cross-currency margin model, full position trading Margin Rate = Effective Margin / (Maintenance Margin + Reduction Fee) Maintenance margin is calculated based on (number of positions held + number of open pending orders) Reduction fee is calculated based on (number of positions + number of open pending orders) (iii) Single/cross currency margin model, position by position Long positions: Margin rate = [position equity - (liabilities + interest) / marker price] / (maintenance margin + handling fee) Short position: Margin rate = [position assets - | liabilities + interest| * marker price] / (maintenance margin + handling fee) What is a reduced position and what is a mandatory close out (force close)? Under the full margin system, a position held by a user will trigger a position reduction or a position blow-out when the margin rate is less than or equal to the maintenance margin rate + closing commission rate if the latest traded price moves in the opposite direction. Under the position-by-position margin system, if the margin rate of a user's position is less than or equal to the maintenance margin rate + closing commission rate when the latest traded price moves in the opposite direction, this will trigger a position reduction or burst. When the user's position is at level 3 or above, if the margin rate of the position is lower than the maintenance margin rate + closing commission rate required for the current level, but still higher than the maintenance margin rate + closing commission rate for the lowest level, the user's entire position will not be forced to close directly. The system will calculate the number of open positions required to reduce the position by two notches and perform a partial reduction of the position. After successful downgrade, if the margin rate meets the maintenance margin rate requirement for the new tranche, the partial position reduction will stop; if it still does not meet the maintenance margin rate requirement for the new tranche, the partial position reduction process will continue to cycle. When the user's position is at gearing 2 or below and the margin rate is lower than the maintenance margin rate + closing commission rate required for the gearing; or when the user's position is at gearing 3 or above but the margin rate is lower than the maintenance margin rate + closing commission rate required for gearing 1, the system will directly delegate the contract (full position) / the position (position by position) at the bankruptcy price (the price at which the margin rate is zero) All sheets are entrusted to the liquidation engine. This early liquidation mechanism is designed to avoid the adverse effects of cascading liquidation and position penetration (positions that cannot be filled after liquidation) due to the high volatility of digital currencies. After triggering a forced closeout, the strong closeout engine will forcefully take over the burst position, at which point the user's strong closeout loss will be equal to the loss of the margin rate of the position to 0, with the maximum loss not exceeding the total margin of the burst position. (6) Is there still an apportionment mechanism for trading OKX contracts? There is no apportionment system on the OKX platform at present, instead there is an automatic position reduction mechanism. Auto-Deleveraging, or ADL for short, is a counterparty forced position closing mechanism to control the overall risk of the platform when extreme market conditions or force majeure factors lead to insufficient or rapidly declining risk reserves. The current sharp drop is a straight line drop of 30% from the peak risk reserve within 8 hours and the platform may subsequently adjust according to market conditions. After the ADL is triggered, the platform will no longer use the method of handling users' strong closeout and strong reduction positions by listing orders to the market and waiting for a suitable price to appear for aggregated transactions, but will instead directly find the top-ranked counterparty account and transact directly with the counterparty account at the prevailing marked-to-market price. Upon completion, the counterparty account's position in the relevant contract is reduced and the proceeds of the position are transferred to the account balance. After the automatic position reduction mechanism has been used to deal with the loss of the penetration position, no further sharing will occur on the platform. When a user's position has been automatically reduced, you will receive an SMS and email notification of the position reduced and the price at which the position was reduced. You can also check the billing statement for the reduced position on the Order Centre page, with the billing type being Automatic Position Reduction.

2. The above information is only about the basics of cryptocurrency, which is related to whether we can make money through cryptocurrency. In addition to increasing your income by scientific methods, cryptocurrency money making is also about finding ways to save money. The handling fees are small, but they must not be ignored. I have calculated that with frequent transactions and long trading hours, the accumulation of fees can add up to more than 10,000 U a year. Next I will introduce a few common ways to reduce fees on large trading platforms. (1) Lowering Binance's fees Binance is currently the world's largest digital currency exchange, and you must sign up for Binance if you want to speculate on coins. The transaction fee is deducted from the assets received. For example, if you buy Ethereum/USDT, the fee is paid in Ethereum. If you sell Ethereum/USDT, the commission is paid in USDT. Example. You place an order for 10Ethereum at a price of USD3,452.55 per share. Transaction fee = 10Ethereum0.1% = 0.01Ethereum Or you place an order to sell 10Ethereum at 3,452.55 USDT per share. Transaction fee = (10Ethereum3,452.55USDT)*0.1% = 34.5255USDT What many people do not know is that the Binance transaction fee can also be reduced. If you want to reduce your Binance trading fees, you must use the invitation link below or use the invitation code "Q022W7SC" to register. https://accounts.binance.com/en/register?ref=Q022W7SC

(2) Reducing OKX fees OKX is a professional digital currency trading platform loved by many users, and its transaction fees can be reduced. Depending on the volume of transactions, OKX divides its users into two levels: normal and professional. Ordinary users are graded according to their OKB positions, while professional users are graded according to their trading volume and asset size. The different tiers determine the trading fees for the next trading day. When calculating the fee levels, if the coin trading volume, total trading volume of delivery and perpetual contracts (USDT delivery contract, coin-based delivery contract, USDT perpetual contract, coin-based perpetual contract), option contract trading volume, and asset volume meet the conditions of different fee levels, users will enjoy the fee discount of the highest level. First method: OKX has an official maximum savings rate of 20%. Use the link below to register with OKX and save 20% on fees. https://www.ouyi.business/join/BTC1ETH Second method: Open the OKX website and enter "BTC1ETH" in the "Invitation Code" on the registration page to see the cashback percentage: 20% at the bottom. Be sure to enter this invitation code, otherwise you can not get 20% cashback percentage. (3) Reduce FTX fees FTX is currently a very fast-growing, contract players more exchange, you must register FTX if you play the contract. if you want to reduce the FTX transaction fees, you must use the following invitation link to register. https://ftx.com/referrals#a=121031692 3, trading road is long, together with forward Want to know more about how to reduce the commission? telegram: btcethcool We have set up a community dedicated to researching trading, add telegram friends to pull you into the community.