Correction and editorial revision — 23 October 2026: This retrospective replaces the earlier mixed-time narrative with dated provider observations. The original report did not retain the source material needed to validate the inflation-surprise explanation. The earlier causal explanations and trading implications are withdrawn; their removal is not a finding that every cited event was false. The original input file is unavailable. The cutoff below is the calendar day before the original publication date, selected for this reconstruction; it is not a claim about what was known when the original article was written.
This archive review uses observations available in the retrieved daily history on or before 2026-06-10. Each market has its own closing time. The question is: How Large Was the Yield Move Without an Inflation Attribution?
The measured comparison
The US 10-year yield proxy moved from 4.528% on 2026-06-09 to 4.542% on 2026-06-10. The difference is +0.014 percentage points, or +1.4 basis points. Dividing the change by the earlier yield instead gives +0.31%; that relative change in a yield quote is not a bond investment return. US 10-year yield proxy history.
From 2026-06-03 to 2026-06-10, the proxy changed +5.1 basis points. The daily change is only one part of that interval. The Nasdaq’s latest daily return was -1.98%, and its five-interval return was -6.27%. These measurements do not decompose expected policy rates, inflation expectations, real yields or the term premium. A nominal yield series cannot stand in for all four.
Reproducing the longer comparison
The five-interval baseline is 4.491% on 2026-06-03; the endpoint is 4.542% on 2026-06-10. Subtract the baseline from the endpoint and multiply by 100 to obtain +5.1 basis points. No compounding is needed to express the difference between two yield levels.
Source-linked daily observations
| Series | Previous date | Previous value | Date | Value | Change | Time zone |
|---|---|---|---|---|---|---|
| KOSPI (^KS11) | 2026-06-09 | 8,096.93 | 2026-06-10 | 7,730.82 | -4.52% | Asia/Seoul |
| S&P 500 (^GSPC) | 2026-06-09 | 7,386.65 | 2026-06-10 | 7,266.99 | -1.62% | America/New_York |
| Nasdaq Composite (^IXIC) | 2026-06-09 | 25,678.82 | 2026-06-10 | 25,169.50 | -1.98% | America/New_York |
| US 10-year yield proxy (^TNX) | 2026-06-09 | 4.528 | 2026-06-10 | 4.542 | +1.4 bp | America/Chicago |
| WTI futures (CL=F) | 2026-06-09 | 88.20 | 2026-06-10 | 90.03 | +2.07% | America/New_York |
| Gold futures (GC=F) | 2026-06-09 | 4,286.40 | 2026-06-10 | 4,133.30 | -3.57% | America/New_York |
| USD/KRW (USDKRW=X) | 2026-06-09 | 1,528.88 | 2026-06-10 | 1,525.81 | -0.20% | Europe/London |
| USD/JPY (USDJPY=X) | 2026-06-09 | 160.17 | 2026-06-10 | 160.38 | +0.13% | Europe/London |
| VIX (^VIX) | 2026-06-09 | 19.87 | 2026-06-10 | 22.22 | +11.83% | America/Chicago |
Scope and limitations
Returns are calculated before rounding from Yahoo Finance daily history, not independently verified exchange settlement records. Index values are in points; the yield proxy is quoted in percent; currency quotes are local units per US dollar; gold and WTI futures are dollars per ounce and barrel. Futures-series changes can reflect contract rolls and are not a continuously held contract’s investment return. These are retrospective observations, not live prices or a reconstruction of every intraday quote available to the original author.
For the underlying method, see the trading-session and return guide. This page retains its original address for correction transparency. The title and text now reflect the narrower evidence available; the old URL wording should not be treated as a current claim. No trading instruction is retained.
