The claim is strongly supported by multiple independent sources. Investing.com's official X post from May 18, 2026 states verbatim that Japan's 10-year yield rose 10 basis points to 2.79%, the highest since 1997. CNBC's May 18, 2026 article corroborates the 1997 historical high benchmark, specifically noting the yield hit its highest level since May 28, 1997. The Japan Times reported on Japanese bond yields reaching 1997 highs in the same period. The WA Trust weekly review also lists Japan's 10-year yield at 2.79% around that time. All sources are consistent with the claim's specific figures (10bp rise, 2.79% level, highest since 1997). No conflicting evidence was found.