Japan to weigh changes to proprietary trading cap as volume soars

AI boom fuels activity on alternatives to Tokyo Stock Exchange Japan's Financial Services Agency has encouraged the growth of proprietary trading systems to ease the concentration of trading at the Tokyo Stock Exchange. (Photo by Yuji Murakami) TOKYO — Japanese financial authorities will explore changing a rule that separates proprietary trading systems from full-fledged securities exchanges, Nikkei has learned, as the popularity of these alternative platforms grows.

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