Tokyo Stock Exchange (TSE) and others representing the Securities Identification Code Committee announced that the four-character security code currently used to identify listed securities on the TSE will include alphabetical characters starting January 1, 2024. To align ourselves with this upcoming change, Japannext updated the OUCH, ITCH, and GLIMPSE protocols accordingly.
Summary of changes
The updated specifications are published in the Japannext document library.
The on-the-wire representation of Orderbook ID for security 8473 is the following four bytes:
Before change: 0x00 0x00 0x21 0x19
After change: 0x38 0x34 0x37 0x33
The list of dummy alphanumeric symbols available in the UAT.
Symbol Lotsize Base Price
The base price will be reset on a daily basis.
November 13 (Monday): Released