Inner disk: for transactions with purchase price, the statistics of purchase times are added to the inner disk. External quotation: a transaction concluded at the selling price. Sales statistics are added to the external disk. The two data of inner disk and outer disk can be used to judge the strength of buying and selling rights. If the number of external disks is greater than the number of internal disks, the buyer is stronger; If the number of inner disks is greater than the number of outer disks, the strength of the seller will be stronger. Through the size and proportion of the number of external and internal markets, investors can usually find out whether they are actively buying or actively selling. In many cases, they can find the trend of bookmakers, which is a more effective short-term indicator.

Straight flush is a very powerful free online stock and securities trading analysis software, and it is an essential tool for investors to speculate in stocks. Straight flush stock software is a stock software that provides market display, market analysis and market trading. It is divided into free PC products, paid PC products, computer tablet products, mobile phone products and other versions with strong applicability. Straight flush stock software pays attention to the needs and usage habits of major securities institutions and investors, and the new version of straight flush stock software is registered for free. The brand-new straight flush stock software has added powerful functions: self-developed cattle search finance and customized stock selection, and added new communication methods.