Alain Chaboud and co-authors argue in Liberty Street Economics (June 30, 2026): Treasury liquidity fades with age

Alain Chaboud and co-authors argue in Liberty Street Economics (June 30, 2026): Treasury liquidity fades with age

On June 30, 2026, Alain Chaboud, Ellen Correia Golay, Michael J. Fleming, Yesol Huh, Frank M. Keane, and Or Shachar describe how Treasury trading changes as securities lose benchmark status and become off-the-run. They argue that trading shifts from interdealer markets toward dealer-to-customer activity, while volume and trade frequency fall and effective bid-ask spreads widen. The authors say these patterns grow as securities age. Their account shows that age alone does not explain the shift: bonds that are cheapest to deliver into Treasury futures retain more trading activity than other off-the-run bonds of similar age. The authors connect that exception to bonds’ roles in hedging and futures delivery. They conclude that when a seasoned bond remains central to those uses, it can retain stronger trading activity than its age alone would predict. The analysis uses executed-trade data, not quotes or other pre-trade information; the authors caution that transaction-based measures can understate illiquidity when securities trade very infrequently.

Publication: 0043e0a2-b935-c78b-9850-04e1e4c59434

attribution — pass: The reading attributes the analysis to the six named authors in Liberty Street Economics, which matches the byline. Findings are framed as what the authors report, argue or conclude. The page is a single post, not a listing.

Alain Chaboud, Ellen Correia Golay, Michael J. Fleming, Yesol Huh, Frank M. Keane, and Or Shachar

summary — uncertain: The summary is faithful, but a general reader cannot follow its central terms. It does not explain off-the-run (an older issue replaced by a newer one), on-the-run, interdealer versus dealer-to-customer trading, effective bid-ask spread, basis points or cheapest to deliver. It also omits why this matters, such as the stress-period widening. The only definition supplied, Benchmark, gives the AI-testing sense, which misleads here. Smallest repair: a plain-language gloss of on/off-the-run and spreads, a corrected Benchmark tooltip, and a mention of the March 2020 stress finding.

seasoned issues that have been replaced by newer benchmarks, which are referred to as off-the-run securities

date — pass: The originalPublished instant 2026-06-30T11:00Z falls on the UTC day June 30, 2026, which matches the post's dateline and citation. The page kind is publisher-page, so no archive disclosure is needed. The reading presents no later events and uses no hindsight framing.

June 30, 2026 Liquidity Fades as Treasuries Age

support — pass: Each claim and limitation matches the source text: the shift to dealer-to-customer trading, falling volume, wider spreads, the cheapest-to-deliver exception, the executed-trade data limits and the caveat about sparse trading. The reading adds no unsupported benefits or impacts. The question follows from the authors' own caveat.

it can understate illiquidity when securities simply do not trade very often

media — pass: No media was selected and no verified candidates were supplied, so nothing could be misidentified.