Correction and editorial revision — 23 October 2026: This retrospective replaces the earlier mixed-time narrative with dated provider observations. The earlier article treated lower oil as a measured corporate-margin benefit without company evidence. The earlier causal explanations and trading implications are withdrawn; their removal is not a finding that every cited event was false.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 2026-05-27. Each market has its own closing time. The question is: How Did Nasdaq Performance Compare With the Broad Index?
The measured comparison
The S&P 500 moved from 7,519.12 on 2026-05-26 to 7,520.36 on 2026-05-27, or +0.02%. The Nasdaq returned +0.07% over 2026-05-26–2026-05-27. Subtracting the S&P return from the Nasdaq return gives +0.05 percentage points of relative daily performance. S&P 500 history; Nasdaq Composite history.
Across their respective five-observation intervals, the S&P 500 returned +2.27% and the Nasdaq returned +3.11%. Index-level returns do not show short interest, corporate margins, the sector contribution or the effect of a specific policy announcement. No prediction that the rally must persist or reverse follows from these calculations.
Reproducing the longer comparison
For Nasdaq Composite, the five-interval baseline is 25,870.71 on 2026-05-19; the endpoint is 26,674.73 on 2026-05-27. The calculation is (endpoint ÷ baseline − 1) × 100 = +3.11%. 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) | 2026-05-26 | 8,047.51 | 2026-05-27 | 8,228.70 | +2.25% | Asia/Seoul |
| S&P 500 (^GSPC) | 2026-05-26 | 7,519.12 | 2026-05-27 | 7,520.36 | +0.02% | America/New_York |
| Nasdaq Composite (^IXIC) | 2026-05-26 | 26,656.18 | 2026-05-27 | 26,674.73 | +0.07% | America/New_York |
| US 10-year yield proxy (^TNX) | 2026-05-26 | 4.493 | 2026-05-27 | 4.481 | -1.2 bp | America/Chicago |
| WTI futures (CL=F) | 2026-05-26 | 93.89 | 2026-05-27 | 88.68 | -5.55% | America/New_York |
| Gold futures (GC=F) | 2026-05-26 | 4,502.30 | 2026-05-27 | 4,448.40 | -1.20% | America/New_York |
| USD/KRW (USDKRW=X) | 2026-05-26 | 1,514.79 | 2026-05-27 | 1,505.44 | -0.62% | Europe/London |
| USD/JPY (USDJPY=X) | 2026-05-26 | 158.95 | 2026-05-27 | 159.24 | +0.18% | Europe/London |
| VIX (^VIX) | 2026-05-26 | 17.01 | 2026-05-27 | 16.29 | -4.23% | 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.