S&P 500 6,712.40 ▲ 0.62%Nasdaq 22,780.51 ▲ 0.94%Dow 46,758.28 ▲ 0.11%Russell 2000 2,476.18 ▼ 0.38%VIX 16.42 ▼ 3.10%S&P 500 6,712.40 ▲ 0.62%Nasdaq 22,780.51 ▲ 0.94%Dow 46,758.28 ▲ 0.11%Russell 2000 2,476.18 ▼ 0.38%VIX 16.42 ▼ 3.10%
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US Equities · S&P 500 · Nasdaq · Small & Micro-Caps

Daily Update · Oct 20, 2026 · By AST Markets Desk (AI-assisted)

Close: Small Caps Lead Gains as Tech Heavyweights Slip

Dow and small-cap proxies outpaced the broader market Tuesday, while declines in major technology shares left the Nasdaq 100 tracker slightly lower.

AAPL $231.40 ▲ 1.20%AEHR $24.10 ▼ 3.20%PLUG $2.31 ▲ 12.40%DUOT $7.42 ▲ 6.30%CLIR $1.14 ▼ 2.10%

U.S. equities finished mixed Tuesday, Oct. 20, 2026, with small caps leading the major index trackers. The Russell 2000 ETF, IWM, rose 1.66% to $275.78, while the Dow ETF, DIA, gained 1.05% to $524.36. The S&P 500 ETF, SPY, advanced 0.34% to $769.05, and the Nasdaq 100 ETF, QQQ, slipped 0.10% to $717.63.

Apple fell 1.00% to $339.50, Microsoft lost 0.31% to $531.87 and Nvidia eased 0.29% to $216.47. JPMorgan Chase gained 0.52% to $335.26, while Exxon Mobil slipped 0.24% to $177.86. CNBC reported that Qnity secured iPhone business from Apple.

Smaller stocks posted divergent results despite the advance in the small-cap benchmark. Plug Power rose 2.19% to $1.40, while Aehr Test Systems dropped 2.12% to $61.99 and Intuitive Machines declined 1.86% to $10.54. Among micro-caps, ClearSign Technologies climbed 6.41% to $2.49 and Duos Technologies gained 5.84% to $5.80.

Aviation headlines paired an earnings warning with a regulatory milestone. CNBC reported that United Airlines cut its 2026 profit outlook because of fuel prices, even as travelers continued booking despite higher fares. Boeing won FAA approval for the 737 Max 10 after years of delays, according to CNBC.

Geopolitical developments remain a focus for the next session, alongside fuel-cost pressures and whether small-cap strength persists. Reuters reported that Iran told Pakistan's army chief it would not hold talks with Washington until its demands were met, while Britain said it would conduct defensive air missions over Saudi Arabia. The next session will also test whether major technology shares can recover after lagging Tuesday's gains.