Market Pulse

S&P 500 up 0.43% — Market Pulse · Aug 21, 2026

9 min read
Market dashboard showing U.S. indexes higher on August 21 with stronger breadth and a lower VIX
Market dashboard showing U.S. indexes higher on August 21 with stronger breadth and a lower VIX

U.S. stocks finished higher on Aug. 21, with the Dow Jones Industrial Average rising 517.80 points, or 0.98%, to 53,277.01. The S&P 500 added 33.21 points, or 0.43%, to 7,674.37, the Nasdaq Composite gained 113.29 points, or 0.43%, to 26,180.46, and the Russell 2000 climbed 25.44 points, or 0.85%, to 3,017.87. The rebound helped steady sentiment after Thursday’s drop, but it did not fully erase a choppy five-session stretch.

Key Takeaways

  • S&P 500 closed up 0.43% at 7,674.37.
  • Market breadth finished with 332 advancers, 169 decliners, and a 1.964 advance/decline ratio.
  • Materials led sectors at +2.14%, while Utilities lagged at -2.28%.
  • VIX ended at 15.13 in the latest five-session lookback.
  • SPY’s first resistance is 766.47 and first support is 760.42.

Market Breadth: Stocks bounced Friday, but the week still showed fading participation beneath the rebound

MetricAug 17Aug 18Aug 19Aug 20Aug 21
Advance/Decline Ratio0.3610.8321.3460.4631.964
Advances133227288158332
Declines368273214341169
Advancing Volume27.9%43.0%61.8%28.5%62.2%
Stocks Near 52-Week Highs11914519
Stocks Near 52-Week Lows44144
% Above 20-Day MA58.5%53.3%54.3%45.7%50.1%
% Above 50-Day MA62.0%60.4%61.2%54.5%57.9%
% Above 200-Day MA71.2%71.2%74.6%73.0%72.2%

Internals improved sharply versus Aug. 20. Advancers beat decliners 332 to 169, for an advance-decline ratio of 1.964, and advancing volume reached 62.23%. That was a clear reversal from Thursday, when advancing volume was 28.49% and decliners led 341 to 158. Even so, participation remains mixed under the surface. About 49.7% of stocks closed above their 20-day moving average, 56.86% stayed above the 50-day, and 68.39% held above the 200-day.

Explore the full dashboard: Market breadth.


Market Performance: Major Indexes

IndexCloseChange% Change
S&P 5007,674.3733.21+0.43%
Dow Jones Industrial Average53,277.01517.80+0.98%
Nasdaq Composite26,180.46113.29+0.43%
Russell 20003,017.8725.44+0.85%

Five-session context:

IndexAug 17Aug 18Aug 19Aug 20Aug 21
S&P 500-0.52%-0.69%+0.21%-0.87%+0.43%
Dow Jones Industrial Average-0.51%-0.22%+0.22%-1.32%+0.98%
Nasdaq Composite-0.32%-1.33%+0.16%-1.00%+0.43%
Russell 2000-0.35%-1.30%+0.50%-1.34%+0.85%

Friday’s winners were broad enough to lift all four major indexes, but the five-session picture was softer. Over the week, the S&P 500 fell from 7,745.06 to 7,674.37, the Nasdaq Composite dropped from 26,644.91 to 26,180.46, and the Russell 2000 slid from 3,057.54 to 3,017.87. The Dow was relatively resilient, falling from 53,459.78 to 53,277.01. Small caps did rebound well on Friday, up 0.85%, which may matter if that strength starts to persist.

Explore the full dashboard: Market snapshot.


Sector View: Leaders and Laggards

  • Leaders: Materials (XLB +2.14%), Health Care (XLV +1.29%), Consumer Discretionary (XLY +1.15%), Financials (XLF +0.93%), Consumer Staples (XLP +0.79%)
  • Laggards: Utilities (XLU -2.28%), Energy (XLE -0.17%), Real Estate (XLRE 0.00%), Technology (XLK +0.11%), Industrials (XLI +0.27%)

Leadership favored cyclical and defensive pockets rather than a single dominant theme. Materials led with XLB up 2.14%, followed by Health Care at 1.29%, Consumer Discretionary at 1.15%, Financials at 0.93%, and Consumer Staples at 0.79%. On the weaker side, Utilities fell 2.28%, Energy slipped 0.17%, Real Estate was flat, Technology rose just 0.11%, and Industrials gained 0.27%. That mix suggests the rebound was real, though not especially powered by Technology.

Explore the full dashboard: Sector performance.


Volatility: VIX and ETF Implied Volatility

MetricAug 17Aug 18Aug 19Aug 20Aug 21
VIX Level15.1915.8414.8916.0115.13
  • SPY IV: 10.37% (Low)
  • QQQ IV: 16.57% (Normal)
  • IWM IV: 14.17% (Low)
  • DIA IV: 10.73% (Low)

Volatility cooled after Thursday’s jump. The VIX closed at 15.13, down from 16.01 the prior session, and below the week’s high close of 16.01. ETF implied volatility also stayed contained overall. SPY average implied volatility was 10.37%, IWM was 14.17%, DIA was 10.73%, and QQQ was 16.57%. Those readings point to a market that saw stress this week, but not a major volatility breakout.

Explore the full dashboard: Volatility.


Headlines Moving Markets

Recent macro and policy context remains in the background. The BEA’s latest releases showed personal income up $54.9 billion, or 0.2%, in June, disposable personal income up $48.3 billion, or 0.2%, and personal consumption expenditures up $65.2 billion, or 0.3%. The advance estimate for second quarter real GDP showed growth at a 1.5% annual rate, down from 2.1% in the first quarter. On the policy side, July 28-29 FOMC minutes were released on Aug. 19, and the latest FOMC statement was issued on July 29. Positioning data was mixed: options whale activity over five trading days was bullish overall, with $148,792,711 in call premium versus $59,725,303 in put premium, while stock whale activity was bearish overall, with a buy-sell ratio of 0.49 and net value of negative $3,627,517,463.57.


Technical Snapshot (SPY)

LevelAug 17Aug 18Aug 19Aug 20Aug 21
20-day SMA756.15757.67758.64759.72760.94
50-day SMA748.51748.86749.50750.13750.68
200-day SMA702.71703.17703.59704.07704.50

Near-term pivot structure, based on 2026-08-20:

  • Resistance: 766.47 (R1), then 770.32 (R2)
  • Pivot: 764.27
  • Support: 760.42 (S1), then 758.22 (S2)

SPY technical levels offer a useful reference after the rebound. Using the Aug. 20 reference, the traditional pivot sits at 764.27, with resistance at 766.47 and 770.32, and support at 760.42 and 758.22. The SPY 20-day, 50-day, and 200-day simple moving averages are 760.94, 750.68, and 704.50, respectively. Those moving averages have all continued to rise over the last five sessions, which suggests the longer trend is still constructive even as short-term participation has cooled.

Explore the full dashboard: Support & Resistance levels.


What to Watch Next

  • Whether the S&P 500 can build on Friday’s close at 7,674.37 after three down sessions in the last five.
  • Breadth follow-through, especially if advancing volume can stay closer to 62.23% than Thursday’s 28.49%.
  • SPY versus 764.27 pivot, then 766.47 and 770.32 on the upside.
  • VIX after the drop to 15.13.
  • Sector rotation. Materials gained 2.14% while Utilities fell 2.28%.
  • Positioning split between bullish options whale flow, call-put ratio 2.49, and bearish stock whale flow, buy-sell ratio 0.49.

Bottom Line

Friday brought a solid rebound in prices, better breadth, and calmer volatility. Still, five-session returns and only 49.7% of stocks above their 20-day moving average suggest the market is recovering from a soft patch rather than moving in a clean all-clear trend.


Market Pulse provides daily analysis of S&P 500 market breadth, sector rotation, and volatility signals to help investors understand what’s happening beneath the surface. Data sourced from our real-time market breadth collectors. For personalized planning, explore our retirement calculators, investment tools, and FIRE planning resources.

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#market-analysis #market-breadth #sp500 #daily-market-update #volatility-analysis #sector-rotation #technical-analysis
Wes Dean, Co-Founder & Chief Technology Officer of Dean Financials

Wes Dean

Co-Founder & Chief Technology Officer

Dean Financials

Wes brings over 25 years of IT industry experience combined with a lifelong passion for financial markets. An active stock market investor since high school, he developed the proprietary market breadth and volatility analysis systems that power Dean Financials' data dashboards. Wes's unique combination of software engineering expertise and deep market knowledge enables him to create sophisticated yet accessible tools for analyzing market conditions and making data-driven investment decisions.

Areas of Expertise:

Market Analysis Technical Trading Software Development Data Engineering

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