I spent a long time iterating the functions of dual currency and options in the evening, and now it is a usable version. Firstly, to access the dual currency data of Binance and Okx, it is necessary to connect to the APIs of these two exchanges. I strongly recommend using the API of a small account or sub account, and only open the read-only function, as long as the data can be read. Deribit does not require an API. The most direct advantage of this version for me now is that it saves me from having to open each app one by one. Instead, on the web page, I can directly see which exchange offers the highest interest at my desired price, and I can also compare it with options to know how much "handling fee" I have been deducted. Even I can directly group my own dual currency strategy in Deribit. The current features implemented in the version are: 1. Hold USDT and earn profits through "buying dual coins at a low price" Choose the price at which you are willing to buy BTC and earn dual currency coupon during the waiting period. The system displays the expected payment for this period, the effective cost after receiving the coin, and the price at which BTC starts to lose money, helping you determine whether this profit is worth bearing the risk of receiving the coin. 2. Hold BTC and increase returns through "high selling dual coins" Choose the price at which you are willing to sell BTC and earn dual currency coupon during the holding period. The system calculates the effective selling price and compares the results of "doing dual currency" and "continuing to hold BTC". 3. Compare Binance and OKX and choose products that offer more under the same conditions Concentrate on viewing the target price, maturity date, annualization, and current earnings of two companies. Compare products with the same direction, target price, and maturity conditions, calculate expected receipts based on investment amount, and reduce the need for platform switching and manual calculations. This is to improve the efficiency of quotation selection. 4. Determine whether the returns of dual currency are cost-effective through option quotes Compare the selected dual currency with options of the same price, direction, and expiration time to see the difference between the dual currency coupon and the put option premium. Integrate Deribit market trends, trading positions, and visual charts, and provide Binance option related comparisons. This can help determine whether the exchange is offering this dual currency appropriately. 5. Evaluate the use of option combinations and build a return structure similar to dual currency There are currently two types of calculations available: preparing cash to sell put options and holding BTC to sell call options. The system calculates the number of contracts, expected net premium, reserved funds, and profit and loss at different maturity prices, and then compares them with dual currency and direct holding. The self built model is currently based on Binance USDT options. 6. Track the continuous operation of "buying low to receive coins - selling high to exchange back USDT" After registering the actual receipt, the settlement result can be carried over to the next calculation: evaluate high selling after receiving BTC, and evaluate low buying after receiving USDT. The historical records support checking the accumulated investment, ticket interest, fees, and remaining BTC return price to determine how much interest was earned in the entire round of operations. 7. Review with actual receipts Support historical table import, due to-do list, actual payment registration, and profit and loss statistics by platform, direction, and time; Can also compare whether to outperform by holding coins directly or holding USDT. Expected returns are separated from actual receipts, and simulated transactions are not included in real returns. The package now supports automatic quotation refresh and a complete product list. One @ Gate, trade more markets