And the electronic disk we usually say usually refers to the computer-set price outside the off-site artificial bidding (on the same day or on the spot) abroad. This is because the external market (LME and CBOT, which we usually pay attention to, and other exchanges in different time zones in China) still retains the tradition of artificial bidding during official trading hours (day or floor), (while China uses electronic trading system during official trading hours), after the official trading hours (day or floor) are over every day,
Extended data:
Compared with public bidding, electronic transactions have the following advantages:
1. The transaction speed is increased;
2. Reduce the transaction cost of market participants;
3. Break through the limitations of time and space. Increase trading varieties, expand market coverage, extend trading time, and make prices more continuous;
4. Make the transaction more fair. No matter whether market participants live in the same city or not, they can participate in the transaction in the same market as long as they pass the license;
5. It has high market transparency and low transaction error rate;
6. Partial replacement of trading halls and brokers.
Baidu encyclopedia-electronic trading disk