Correction and editorial revision — 23 October 2026: This retrospective replaces the earlier mixed-time narrative with dated provider observations. The earlier article used unverified historical rankings and numerical inflation pass-through claims. The earlier causal explanations and trading implications are withdrawn; their removal is not a finding that every cited event was false.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 2026-04-20. Each market has its own closing time. The question is: How Did the VIX Change Compare With Five Sessions?
The measured comparison
VIX moved from 17.48 on 2026-04-17 to 18.87 on 2026-04-20. That is +1.39 index points and +7.95% relative to its earlier level. The two units are not interchangeable. Across five observation intervals from 2026-04-13, the index change was -1.31%. VIX history.
The S&P 500 changed -0.24% over its latest interval and +3.24% over five intervals. A VIX change is not a stock-market return or a count of protective options held. A claim about a new regime requires a defined historical test; the short comparison here does not supply one. It also does not identify which institutions added or removed hedges.
Reproducing the longer comparison
For VIX, the five-interval baseline is 19.12 on 2026-04-13; the endpoint is 18.87 on 2026-04-20. The calculation is (endpoint ÷ baseline − 1) × 100 = -1.31%. This uses the endpoints directly rather than adding rounded daily percentages. Five observations need not correspond to one calendar week when a market is closed.
Source-linked daily observations
| Series | Previous date | Previous value | Date | Value | Change | Time zone |
|---|---|---|---|---|---|---|
| KOSPI (^KS11) | 2026-04-17 | 6,191.92 | 2026-04-20 | 6,219.09 | +0.44% | Asia/Seoul |
| S&P 500 (^GSPC) | 2026-04-17 | 7,126.06 | 2026-04-20 | 7,109.14 | -0.24% | America/New_York |
| Nasdaq Composite (^IXIC) | 2026-04-17 | 24,468.48 | 2026-04-20 | 24,404.39 | -0.26% | America/New_York |
| US 10-year yield proxy (^TNX) | 2026-04-17 | 4.246 | 2026-04-20 | 4.250 | +0.4 bp | America/Chicago |
| WTI futures (CL=F) | 2026-04-17 | 83.85 | 2026-04-20 | 89.61 | +6.87% | America/New_York |
| Gold futures (GC=F) | 2026-04-17 | 4,879.60 | 2026-04-20 | 4,828.80 | -1.04% | America/New_York |
| USD/KRW (USDKRW=X) | 2026-04-17 | 1,477.92 | 2026-04-20 | 1,465.15 | -0.86% | Europe/London |
| USD/JPY (USDJPY=X) | 2026-04-17 | 159.19 | 2026-04-20 | 159.16 | -0.02% | Europe/London |
| VIX (^VIX) | 2026-04-17 | 17.48 | 2026-04-20 | 18.87 | +7.95% | 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.
