The 30-year U.S. Treasury yield moved back above 5% intraday without a corresponding jump at the short end that would signal stronger Fed rate-hike bets. Earlier the 2-year traded around 4.11%-4.13% and the 10-year around 4.46%-4.47%, leaving the short end relatively unchanged. The move resembles a re-test of long-end resistance — the 30-year hit 5.006% in early May and briefly touched 5% on July 1 — and points to persistent market concerns about long-term inflation, fiscal supply and term premi

SMBC Nikko Securities estimates in a July 3 report that if Japan Exchange Group raises Kioxia’s free-float from 15% to 50%, the company’s TOPIX weight would more than double to 2.678% at the October rebalancing, triggering roughly ¥3tn (~$18.5bn) of passive buying. The needed purchases would be roughly equivalent to the stock’s 30‑day ADV. SMBC calls the inflow size unprecedented and says implementation may be phased to limit market impact. Additional passive demand could support Kioxia shares, which had rallied about 940% to last month’s peak and have since pulled back roughly 25% amid AI valuation concerns.

An international research team including Finland’s Aalto University used artificial intelligence to identify two new superconducting materials, Aalto said; results were published in Physical Review Research. The team said AI-enabled screening can speed development of new superconductors and aid the search for materials that might operate at or near room temperature. Superconductors exhibit zero electrical resistance under specific quantum conditions and have potential applications in quantum computing, neuroimaging, nuclear fusion devices, maglev transport, data centers and power transmission.