S&P 500 down 0.69% — Market Pulse · Aug 18, 2026

U.S. stocks closed lower on Aug. 18, with the S&P 500 down 53.30 points to 7691.76 and the Nasdaq Composite off 355.20 points to 26289.71. Technology led the downside, while Energy, Health Care, and Consumer Staples finished higher.

Key Takeaways

• S&P 500 closed down 0.69% at 7,691.76.
• Market breadth finished with 224 advancers, 273 decliners, and a 0.821 advance/decline ratio.
• Energy led sectors at +1.76%, while Technology lagged at -2.47%.
• VIX ended at 15.84 in the latest five-session lookback.
• SPY’s first resistance is 775.40 and first support is 771.17.

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Market Breadth: Tech-led pullback deepens as breadth stays mixed and volatility edges higher

Metric	Aug 12	Aug 13	Aug 14	Aug 17	Aug 18
Advance/Decline Ratio	1.088	1.742	1.059	0.357	0.821
Advances	260	317	253	131	224
Declines	239	182	239	367	273
Advancing Volume	56.7%	75.2%	51.1%	27.9%	41.4%
Stocks Near 52-Week Highs	26	25	15	11	9
Stocks Near 52-Week Lows	4	1	1	4	4
% Above 20-Day MA	48.6%	50.6%	50.4%	46.0%	42.8%
% Above 50-Day MA	48.4%	50.2%	52.4%	46.8%	45.4%
% Above 200-Day MA	51.2%	52.8%	53.2%	51.2%	51.2%

Under the surface, breadth was still somewhat soft. Advancers trailed decliners, 225 to 275, for an advance-decline ratio of 0.818, and advancing volume was 41.45%. Even so, participation was not as weak as the prior session’s 131 advances, 367 declines, and 27.87% advancing volume in the five-session lookback.

Explore the full dashboard: Market breadth.

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Market Performance: Major Indexes

Index	Close	Change	% Change
S&P 500	7,691.76	-53.30	-0.69%
Dow Jones Industrial Average	53,343.40	-116.38	-0.22%
Nasdaq Composite	26,289.71	-355.20	-1.33%
Russell 2000	3,017.89	-39.65	-1.30%

Five-session context:

Index	Aug 12	Aug 13	Aug 14	Aug 17	Aug 18
S&P 500	+0.26%	+0.65%	-0.17%	-0.52%	-0.69%
Dow Jones Industrial Average	-0.04%	+0.13%	-0.20%	-0.51%	-0.22%
Nasdaq Composite	+0.54%	+0.81%	-0.28%	-0.32%	-1.33%
Russell 2000	+0.61%	+0.24%	+0.51%	-0.35%	-1.30%

All four major indexes fell on the day. The S&P 500 lost 0.69%, the Dow Jones Industrial Average slipped 0.22%, the Nasdaq Composite dropped 1.33%, and the Russell 2000 fell 1.30%. Over the last five sessions, the tone has faded from midweek strength into back-to-back declines for the S&P 500, Nasdaq, and Dow, while the Russell 2000 has also turned lower after gains earlier in the stretch.

Explore the full dashboard: Market snapshot.

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Sector View: Leaders and Laggards

• Leaders: Energy (XLE +1.76%), Health Care (XLV +1.60%), Consumer Staples (XLP +1.06%), Financials (XLF +0.45%), Communication Services (XLC -0.31%)
• Laggards: Technology (XLK -2.47%), Industrials (XLI -1.48%), Materials (XLB -0.88%), Real Estate (XLRE -0.45%), Utilities (XLU -0.36%)

Leadership was defensive and commodity-leaning. Energy rose 1.76%, Health Care gained 1.60%, Consumer Staples added 1.06%, and Financials edged up 0.45%. Technology was the clear weak spot, down 2.47%, followed by Industrials at negative 1.48% and Materials at negative 0.88%.

Explore the full dashboard: Sector performance.

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Volatility: VIX and ETF Implied Volatility

Metric	Aug 12	Aug 13	Aug 14	Aug 17	Aug 18
VIX Level	14.55	14.63	14.25	15.19	15.84

• SPY IV: 9.36% (Low)
• QQQ IV: 15.53% (Normal)
• IWM IV: 13.33% (Low)
• DIA IV: 11.38% (Low)

Volatility picked up, but not to an extreme. The VIX closed at 15.84, up from 15.19 on Aug. 17 and 14.25 on Aug. 14. ETF implied volatility still looked contained in several areas: SPY at 9.36% was labeled Low, IWM at 13.33% was Low, DIA at 11.38% was Low, and QQQ at 15.53% was Normal.

Explore the full dashboard: Volatility.

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Headlines Moving Markets

Recent macro releases still frame the backdrop. The advance estimate showed second quarter 2026 real GDP rising at a 1.5% annual rate, down from 2.1% in the first quarter. June personal income rose 0.2%, disposable personal income rose 0.2%, and PCE increased 0.3%. The latest FOMC statement also remains part of the policy backdrop.

• GDP (Advance Estimate), 2nd Quarter 2026
• Personal Income and Outlays, June 2026
• Federal Reserve issues FOMC statement
• Personal Income and Outlays, May 2026
• Personal Income and Outlays, April 2026
• Personal Income and Outlays, January 2026
• Personal Income and Outlays, December 2025
• U.S. International Trade in Goods and Services, June 2026
• U.S. International Transactions and Investment Position, 1st Quarter 2026 and Annual Update
• Direct Investment by Country and Industry, 2025
• Activities of U.S. Affiliates of Foreign Multinational Enterprises, 2024
• New Foreign Direct Investment in the United States, 2025

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Technical Snapshot (SPY)

Level	Aug 12	Aug 13	Aug 14	Aug 17	Aug 18
20-day SMA	752.26	753.15	754.50	756.15	757.68
50-day SMA	747.30	747.62	748.03	748.51	748.86
200-day SMA	701.16	701.69	702.23	702.71	703.17

Near-term pivot structure, based on 2026-08-17:

• Resistance: 775.40 (R1), then 778.19 (R2)
• Pivot: 773.96
• Support: 771.17 (S1), then 769.73 (S2)

Participation remains better on longer trends than on shorter ones. In the current snapshot, 49.3% of stocks were above their 20-day moving average, 55.27% were above the 50-day, and 63.02% were above the 200-day. For SPY, the Aug. 17 pivot sat at 773.96, with S1 at 771.17 and S2 at 769.73. The moving averages still slope higher, with the 20-day at 757.68, the 50-day at 748.86, and the 200-day at 703.17.

Explore the full dashboard: Support & Resistance levels.

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What to Watch Next

• Whether the S&P 500 can steady after closing at 7691.76 following consecutive losses of 0.52% and 0.69%.
• SPY support near 771.17 and 769.73, especially with S2 sitting close to the recent pullback zone.
• Technology leadership, or lack of it, after XLK fell 2.47% and helped drive the Nasdaq Composite down 1.33%.
• Breadth improvement from 41.45% advancing volume and a 0.818 advance-decline ratio.
• Volatility drift higher: VIX moved from 14.25 on Aug. 14 to 15.84 on Aug. 18.

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Bottom Line

The market saw another down day, but the message was more nuanced than the headline index losses alone. Technology weakness did the damage, breadth improved from the prior session but stayed below even, and volatility rose while remaining relatively contained. That leaves the next few sessions focused on whether participation and leadership broaden again or whether the recent pullback gains traction.

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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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