The London Stock Exchange (LSE) and its Tokyo equivalent aim to create a "round-the-clock trading environment" as part of a new tie-up deal.
Announcing plans to work together to improve their "international presence" for the first time, the two bourses' joint statement expressed a desire to boost their respective "investors, issuers, and member firms".
Technology information will be shared in the deal, which will also address new jointly-traded products and the operation and regulation of markets for growth companies.
"The Tokyo Stock Exchange (TSE) is an immensely important global market and we see our co-operation agreement with it as an exciting opportunity to broaden the scope of the services that we are able to offer issuers, investors and member firms," LSE chairman Chris Gibson-Smith said.
TSE's president, Taizo Nishimuro, emphasised the importance of the tie-up by saying "it is critical for us to explore the possibility for satisfying [the TSE's] various stakeholders".
The move strengthens the LSE's global base following its successful resistance of a £2.7 billion takeover bid by the Nasdaq stock exchange.
LSE shares rose by 0.23 per cent during early morning trading.
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