# Sector/Market Ratios StoxPlus's sector classification is based on the Industry Classification Benchmarking ("ICB") standard developed and applied by Dow Jones and FTSE in classifying over 65,000 companies worldwide. StoxPlus's securities experts have applied and adjusted the ICB standard to be more suitable for Vietnam. The sector indicator group also includes the company indicator group: □ Valuation □ Profitability □ Financial Strength □ Management Efficiency □ Price Volatility □ Sector Index Sector indices, as well as indices for the overall market (VNindex and HNX Index), are calculated based on the market capitalization-weighted average of each stock. The sector/market P/E ratio = the total market capitalization divided by the total profit of the companies in the sector/index for the last 4 quarters (or last year). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fiinpro.com/english/methodology/calculating-financial-ratios-for-fiinpro-x/sector-market-ratios.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.