All four major indexes closed lower in the August 20, 2026 U.S. regular session. While the Dow Jones and Russell 2000 each fell more than 1%, Micron and SanDisk rose among the tracked stocks, moving opposite to the broader market.
Dow and Russell 2000 close down more than 1%
All figures below are based on U.S. regular-session closing data for August 20, 2026. Index levels and changes from the previous day are in points, and percentage changes are in %.
| Major Index | August 20, 2026 Close (Points) | Change From Previous Day (Points, %) |
|---|---|---|
| S&P 500 | 7,641.16 | -66.82(-0.87%) |
| Nasdaq Composite | 26,067.17 | -263.92(-1.00%) |
| Dow Jones | 52,759.21 | -703.84(-1.32%) |
| Russell 2000 | 2,992.43 | -40.51(-1.34%) |
The S&P 500 ended the regular session on August 20, 2026 at 7,641.16 points, down 66.82 points, or 0.87%. The Nasdaq Composite stood at 26,067.17 points on the same trading day, down 263.92 points, or 1.00%. S&P 500 closing data and Nasdaq Composite closing data provide sources for these closing figures.
The Dow Jones closed at 52,759.21 points on August 20, 2026, down 703.84 points, or 1.32%. The Russell 2000 was at 2,992.43 points, down 40.51 points, or 1.34%. Among the four major indexes, the Russell 2000 posted the largest percentage decline, followed by the Dow Jones. This is a relative comparison based on closing data for that trading day. It can be verified through Dow Jones closing data and Russell 2000 closing data.
Micron rises 3.97%, while SanDisk also moves opposite to the indexes
Micron ended the regular session on August 20, 2026 at 974.33 dollars, up 37.22 dollars, or 3.97%. Its intraday high was 977.28 dollars, its low was 929.07 dollars, and volume was 24,376,757 shares. It posted the largest gain among the tracked stocks, moving in the opposite direction of the S&P 500’s 0.87% decline and the Nasdaq Composite’s 1.00% decline on the same trading day. Micron closing data and the Micron stock hub provide access to prior analysis.
SanDisk closed at 1,600.62 dollars on August 20, 2026, up 31.75 dollars, or 2.02%. Its intraday high and low were 1,631.40 dollars and 1,554.00 dollars, respectively, and volume was 11,002,366 shares. The gains in Micron and SanDisk were closing-data facts that differed from the major indexes that day; this simultaneous movement alone does not establish that a particular factor caused the gains. See SanDisk closing data and the SanDisk stock hub.
Amazon falls 2.16%, with large-cap technology stocks generally weaker
Amazon closed at 260.11 dollars on August 20, 2026, down 5.73 dollars, or 2.16%. Its intraday high was 263.84 dollars, its low was 259.52 dollars, and volume was 22,964,776 shares. Apple also ended the regular session on the same trading day at 311.30 dollars, down 5.53 dollars, or 1.75%. Prior analysis for each stock is available through Amazon closing data·stock hub and Apple closing data·stock hub.
Tesla was at 345.13 dollars on August 20, 2026, down 5.99 dollars, or 1.71%, while Alphabet closed at 340.67 dollars, down 4.05 dollars, or 1.17%. Microsoft was at 481.15 dollars, down 3.16 dollars, or 0.65%, and Nvidia was at 216.85 dollars, down 0.71 dollars, or 0.33%. Meta, meanwhile, was at 545.83 dollars, down 0.20 dollars, or 0.04%, showing a relatively small move among the tracked large-cap technology stocks. See Tesla closing data·stock hub, Alphabet closing data·stock hub, Nvidia closing data·stock hub, and Meta closing data·stock hub.
Volatility, yields, and oil rise together; media context is a separate interpretation
The VIX closed at 16.03 points on August 20, 2026, up 1.14 points, or 7.66%. The U.S. 10-year yield was 4.696% on the same trading day, up 0.043 percentage points, while the dollar index was at 98.884 points, up 0.054 points, or 0.05%. These figures can be verified through VIX closing data, U.S. 10-year yield data, and dollar index closing data.
WTI crude oil closed at 86.55 dollars per barrel on August 20, 2026, up 0.72 dollars, or 0.84%. The dollar-won exchange rate was 1,393.66 won per dollar on the same trading day, up 4.26 won, or 0.31%. The closing data itself shows only that equity indexes fell while the VIX, U.S. 10-year yield, and WTI crude oil rose on the same trading day. See WTI crude oil closing data and dollar-won closing data.
Reports described the declines in the major indexes as a pullback after the previous day’s gains and cited Walmart’s stock-price decline as context. The original Investopedia article addresses this development as a media interpretation. From an editorial observation, Micron and SanDisk rose while many tracked large-cap technology stocks declined, producing diverging closing performances by stock; however, this is not presented as a single causal relationship.
Three items to watch in the next regular session
-
It will be possible to examine how the Russell 2000 and Dow Jones, which fell 1.34% and 1.32%, respectively, on August 20, 2026, perform relative to the S&P 500, which declined 0.87%, and the Nasdaq Composite, which fell 1.00%.
-
It will be necessary to watch how the performance gap at the next regular-session close changes between Micron and SanDisk, which rose 3.97% and 2.02%, respectively, on August 20, 2026, and Amazon and Apple, which fell 2.16% and 1.75%.
-
The next regular-session closing moves of the VIX, which rose 7.66% to 16.03 points on August 20, 2026, the U.S. 10-year yield, which rose 0.043 percentage points to 4.696%, and WTI crude oil, which rose 0.84% to 86.55 dollars per barrel, can be monitored together. These are observation items and do not indicate a direction for the next trading day or recommend buying or selling.