US Municipal Bond Yields Post Largest Intraday Jump in Over a Year

The notable element here is the absence of a cited catalyst: a broad repricing of tax-exempt debt without an obvious trigger suggests it is being driven by flow or positioning rather than a discrete news event. That matters for the $4 trillion muni market, where retail participation and thin liquidity can amplify one-way moves, and it sits alongside a broader rates backdrop that RWA and tokenized-treasury products are increasingly benchmarked against. Whether the move proves a one-session event or the start of a sustained repricing is the open question.