The LSE is in talks to purchase Seattle-based Russell Investments in a move that would expand its stock indices in the U.S., says Reuters.

Russell Investments could fetch over US$3 billion for its stock index business, Russell 1000 Global Index. Reuters adds the LSE wouldn’t be interested in purchasing Russell’s asset management team, which is valued at an additional US$1 billion.

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The LSE says the deal would be partly funded by selling new stock to shareholders.

MSCI, another U.S. stock index provider, is also interested in purchasing Russell Investments.

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