1. calculate the investment performance of equity portfolios, each of the groups of stocks by industry, of individual stocks. In particular the following: users of stock options, the industry, category, select time periods needed computer = > calculate and display. Investment performance taking into account the cost. Have a choice in absolute value, according to the rate%.2. General principles of the above features: Step 1: user/system defined value fields (fields) of the day of investment tools (might be on the field, price, market value, etc. due to user/system update)Step 2: user-defined 1 investment tools group under field conditions (e.g. stock market value > 100 billion, transaction value > 20 > 20%), ROE rate. The system will check from the start until the end. Each check is supposed to be a review, the review could be weeks/month/quarter. With each review period will have a list of different categories, and the calculation performance of the category based on that list.
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