Core Points - The Beijing Stock Exchange (BSE) has officially entered the "920" era with the code switching of six listed companies, enhancing stock identification and reflecting its status as the third national securities exchange [2][3][6] - The code switching initiative aims to unify the previously scattered stock codes and improve the recognition of listed companies, facilitating investor searches and transactions [3][5] Group 1: Code Switching Implementation - Six companies, including YingTai Bio and AiRong Software, have begun using the new 920 codes as a pilot starting May 6 [3][4] - The BSE plans to gradually switch the codes of the remaining 242 listed companies, which previously used codes starting with 43, 83, and 87 [3][5] - The transition to the 920 code segment is part of a broader effort to enhance the BSE's market identity and align with its focus on innovative small and medium enterprises [5][6] Group 2: Technical Aspects of Code Switching - The new code format will maintain the last three digits of the existing codes, while the first three digits will be standardized to 920 [8] - In cases of code duplication after the switch, the fourth digit will be adjusted sequentially based on the listing date to ensure uniqueness [8] - Historical trading data and market information will remain accessible under both the old and new codes, ensuring continuity for investors [10][11]