# Brad DeLong argues the Fed is no longer the bond market’s guide [Canonical reading](https://escapemeridian.com/readings/brad-delong-argues-the-fed-is-no-longer-the-bond-market-s-guide-58977322) Brad DeLong’s post was published on October 15, 2026. He argues that a Fed easing move followed by a sharp rise in long-term rates suggests the Federal Reserve has lost control over the bond-market narrative. He says this pattern had not happened in the United States since World War II: previously, even in the 1970s, a short-term rate cut was followed by long-term rates because traders believed the Fed probably knew something. DeLong says he was wrong to suspect a technical market microstructure explanation for the cross-move that began in 2024. He now argues that bond traders see money flowing into the datacenter construction boom and treat the Fed as one voice among several, rather than the best-informed voice. He says the rise is almost all in the real yield, which points away from lost inflation credibility and toward real rates and chaos-monkey risk. His conclusion is that traders should no longer presume the Fed knows what it is doing. The post does not establish what explains the rise in real yields or how much the datacenter boom contributes. Headline and summary by Escape Meridian, prepared by Luna from the attributed source. A source check is not independent confirmation of the source’s claims. ## Original source J. Bradford DeLong · Article Original source date: Oct 15, 2026 (2026-10-15T12:46:09.000Z). Date basis: Date supplied by the publisher’s feed. Added to Escape Meridian: 2026-11-04T21:58:24.974Z. First observed: 2026-10-23T23:09:44.368Z. Retrieved: 2026-10-23T23:11:35.638Z. - [The First Time a Fed Easing Move Has Triggered a Sharp Jump in Long-Term Nominal Treasury Bond Rates: CHART OF THE DAY](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Limits Text as retrieved on October 23, 2026; originally published October 15, 2026. The post asserts that money flowing into the datacenter construction boom is shaping bond-market views, but supplies no supporting analysis in the retrieved text. The post does not quantify the rise in real yields or establish its causes. The linked chart and article are not included in the supplied evidence. ## Open question What explains the rise in real yields, and how much does the datacenter construction boom contribute? ## Source-stated Brad DeLong argues that a Fed easing move followed by a sharp rise in long-term rates suggests the Federal Reserve has lost control over the bond-market narrative. > That a Fed easing move is immediately followed by a sharp jump in long-term rates strongly suggests that the Federal Reserve has lost control over the narrative governing bond-market expectations. - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says the pattern had not occurred in the United States since World War II, and that traders had previously treated long-term rates as following short-term cuts because the Fed probably knew something. > This has not happened before, at least not in the United States since World War II: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says he was wrong to suspect a technical market microstructure explanation for the cross-move that began in 2024. > Well! Pretty clear that was wrong! - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong argues that bond traders see money flowing into the datacenter construction boom and now treat the Fed as one voice among several, not the best-informed one. > The bond market sees the flood of money into the datacenter construction boom, and has concluded that the Fed is not their guide - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says the rise is almost all in the real yield, pointing away from lost inflation credibility and toward real rates and chaos-monkey risk. > Interesting that the rise is almost all in the real yield. That points away from “the Fed has lost its inflation credibility” and towards real rates and chaos-monkey risk: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong concludes that traders should not presume the Fed knows what it is doing. > The presumption that it knows what it is doing should not be traded on: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source and contributor context J. Bradford DeLong · Publisher The publisher is identified here. No individual author has been inferred. ## Source media Media retrieval status: unchecked. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Editorial provenance Version 1. Publication ID: 42802716-afdc-f303-31e9-5882ac2a28b2. Prepared by openai/gpt-6-luna; grounding review by anthropic/claude-opus-5.5. Source check: uncertain by anthropic/claude-opus-5.5 on 2026-11-04T21:53:28.069Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: bridge\_admitted\_by\_model. Observation: bdd806d4718b67b72afa1d5cc7ca1bece6205ac9a19b33eb76332b656ea2c8d6. Source text hash: 3cdf953b693234b4612664c8d52129ca8e314e9aa0fe520c947002222ee10d99. ## Revision and source-check history ### Version 1 — 2026-11-04T21:58:24.974Z Brad DeLong’s post was published on October 15, 2026. He argues that a Fed easing move followed by a sharp rise in long-term rates suggests the Federal Reserve has lost control over the bond-market narrative. He says this pattern had not happened in the United States since World War II: previously, even in the 1970s, a short-term rate cut was followed by long-term rates because traders believed the Fed probably knew something. DeLong says he was wrong to suspect a technical market microstructure explanation for the cross-move that began in 2024. He now argues that bond traders see money flowing into the datacenter construction boom and treat the Fed as one voice among several, rather than the best-informed voice. He says the rise is almost all in the real yield, which points away from lost inflation credibility and toward real rates and chaos-monkey risk. His conclusion is that traders should no longer presume the Fed knows what it is doing. The post does not establish what explains the rise in real yields or how much the datacenter boom contributes. ## Original source J. Bradford DeLong · Article Original source date: Oct 15, 2026 (2026-10-15T12:46:09.000Z). Date basis: Date supplied by the publisher’s feed. Added to Escape Meridian: 2026-11-04T21:58:24.974Z. First observed: 2026-10-23T23:09:44.368Z. Retrieved: 2026-10-23T23:11:35.638Z. - [The First Time a Fed Easing Move Has Triggered a Sharp Jump in Long-Term Nominal Treasury Bond Rates: CHART OF THE DAY](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Limits Text as retrieved on October 23, 2026; originally published October 15, 2026. The post asserts that money flowing into the datacenter construction boom is shaping bond-market views, but supplies no supporting analysis in the retrieved text. The post does not quantify the rise in real yields or establish its causes. The linked chart and article are not included in the supplied evidence. ## Open question What explains the rise in real yields, and how much does the datacenter construction boom contribute? ## Source-stated Brad DeLong argues that a Fed easing move followed by a sharp rise in long-term rates suggests the Federal Reserve has lost control over the bond-market narrative. > That a Fed easing move is immediately followed by a sharp jump in long-term rates strongly suggests that the Federal Reserve has lost control over the narrative governing bond-market expectations. - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says the pattern had not occurred in the United States since World War II, and that traders had previously treated long-term rates as following short-term cuts because the Fed probably knew something. > This has not happened before, at least not in the United States since World War II: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says he was wrong to suspect a technical market microstructure explanation for the cross-move that began in 2024. > Well! Pretty clear that was wrong! - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong argues that bond traders see money flowing into the datacenter construction boom and now treat the Fed as one voice among several, not the best-informed one. > The bond market sees the flood of money into the datacenter construction boom, and has concluded that the Fed is not their guide - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong says the rise is almost all in the real yield, pointing away from lost inflation credibility and toward real rates and chaos-monkey risk. > Interesting that the rise is almost all in the real yield. That points away from “the Fed has lost its inflation credibility” and towards real rates and chaos-monkey risk: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source-stated DeLong concludes that traders should not presume the Fed knows what it is doing. > The presumption that it knows what it is doing should not be traded on: - [Supporting source](https://braddelong.substack.com/p/the-first-time-a-fed-easing-move) ## Source and contributor context J. Bradford DeLong · Publisher The publisher is identified here. No individual author has been inferred. ## Source media Media retrieval status: unchecked. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Editorial provenance Version 1. Publication ID: 42802716-afdc-f303-31e9-5882ac2a28b2. Prepared by openai/gpt-6-luna; grounding review by anthropic/claude-opus-5.5. Source check: uncertain by anthropic/claude-opus-5.5 on 2026-11-04T21:53:28.069Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: bridge\_admitted\_by\_model. Observation: bdd806d4718b67b72afa1d5cc7ca1bece6205ac9a19b33eb76332b656ea2c8d6. Source text hash: 3cdf953b693234b4612664c8d52129ca8e314e9aa0fe520c947002222ee10d99. ### uncertain — 2026-11-04T21:53:28.069Z — anthropic/claude-opus-5.5 Publication: 42802716-afdc-f303-31e9-5882ac2a28b2 attribution — pass: This is a single post by Brad DeLong on his own Substack. The reading attributes the arguments to him throughout, and his quoted January 2025 post is presented as his earlier view. > That a Fed easing move is immediately followed by a sharp jump in long-term rates strongly suggests summary — uncertain: The summary is faithful, and the definitions list is empty. Central terms are left unexplained for a non-specialist reader: 'Fed easing move' (a rate cut), 'long-term rates', 'real yield' versus nominal yields, 'chaos-monkey risk' and 'market microstructure'. Without them, readers cannot follow why a real-yield rise points away from lost inflation credibility. Smallest repair: add plain-language glosses or term-library entries for these terms. A minor point: dropping 'strongly' from 'strongly suggests' slightly softens DeLong's force. > That points away from “the Fed has lost its inflation credibility” and towards real rates and chaos-monkey risk date — pass: evidence.originalPublished (2026-10-15 UTC) matches the source dateline 'Oct 15, 2026', and the reading states October 15, 2026. The linked article on a 2026 bond sell-off is not presented as part of the original reading's facts. There is no hindsight framing, and the evidence kind is publisher-page. > Brad DeLong Oct 15, 2026 support — uncertain: Most claims match their excerpts. The summary says the cross-move 'began in 2024'. That is consistent with the quoted earlier post ('Since September \[2024\]'), but the post's own framing says the move first began in January 2025. The source is internally inconsistent, and the reading picks one date without noting this. Repair: say 'which DeLong first discussed in January 2025' or note both dates. The question and limitations are appropriately framed as open. > Back in January 2025, when this cross-move first began, I wondered at what was going on: media — pass: No media was selected and no verified candidates were supplied, so mediaId null is appropriate. ## Recorded references Explicit citations in public readings and public file attachments to this reading. Shared topics are not citations. Other artifact types need an explicit reference adapter. No public references recorded here yet. [Reference data (JSON)](/readings/589773222842a9e866ce5d60d99515aec5b681cace01db556432bbd93890282c/references.json) ## Corrections and challenges [Send a correction or an opposing source](https://escapemeridian.com/corrections/) [JSON record](https://escapemeridian.com/readings/brad-delong-argues-the-fed-is-no-longer-the-bond-market-s-guide-58977322.json)