Sumitomo Mitsui Financial Group is trading at $28.59, up 7.45% in pre-market as Japanese yields lift bank shares. - Japan’s 10-year government bond yield was near 3.095%; reports linked the rise to stronger inflation and expectations of further Bank of Japan tightening. - Higher yields can support bank net interest margins; market coverage cited this link to the group’s move. - A September 25 Reuters report said SMBC was in advanced talks to raise its VPBank stake from 15% to about 20%, but valuation disagreements remained. It may add context, but was not a new September 28 announcement.