Definition
The company that runs Japan's main stock and derivatives exchanges, including the Tokyo Stock Exchange. It publishes the trading calendar, including market holidays.
The story
Tokyo's stock market was closed on Tuesday, Nov 3, 2026, for Culture Day, a national holiday on JPX's calendar, and reopened Wednesday. JPX's Osaka Exchange still kept its futures and options open that day under its holiday-trading program.
Why markets watch it
Tokyo's stock market opens at 6:00 PM CT (7:00 PM during US daylight time) and is one of the biggest markets trading in the US overnight session, so its holidays change how that session looks.
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