Treasury yields are jumpy heading into the second half of 2026, and Wall Street has good reason to be nervous.
Yields capped a third consecutive quarterly rise on Tuesday, the last trading day of a first half that — despite severe geopolitical tensions and an energy crisis — ended on a surprisingly strong note. The S&P 500 gained nearly 10% in H1. But as H2 opens, the mood is more cautious. Bond investors are selling, gold is crumbling, and two potentially market-moving data prints arrive within the next 24 hours.