## Stock Market, August 19, 2026 (early pre-market) **Note on timing:** It's currently ~11:30 PM ET on Tuesday, Aug 18 — so today's (Wed, Aug 19) US session hasn't opened yet. The most recent completed session was **Tuesday, August 18**, and overnight futures are pointing to a slightly lower open today. ### 📉 Tuesday, Aug 18 close — 3rd straight down day Major indices closed lower for a **third consecutive session**, led by a heavy semiconductor/mega-cap tech selloff: | Index | Close | Change | |---|---|---| | S&P 500 | 7,691.76 | **−0.69%** (−53.30) | | Dow Jones | 53,343.40 | **−0.22%** (−116.40) | | Nasdaq Composite | 26,289.71 | **−1.33%** (−355.20) | | Nasdaq 100 | 29,490.96 | **−1.68%** | | Russell 2000 | 3,017.89 | **−1.30%** | | VIX | 15.84 | **+4.28%** | *(Source: [Yahoo Finance markets](https://finance.yahoo.com/markets/), [Vittarthi US market close](https://vittarthi.com/markets/us))* **What drove it:** - **Chips got crushed** after a multi-week rally: Micron **−7.0%**, Meta **−4.45%**, Caterpillar **−4.63%**, Broadcom **−3.17%**, Nvidia **−2.34%** ([stockmarketwatch.com S&P movers](https://stockmarketwatch.com/indices/sp500/today), [Vittarthi](https://vittarthi.com/markets/us)). - **Rotated into defensives & energy:** Energy **+1.76%**, Health Care **+1.60%**, Staples **+1.06%** led, while Technology **−2.47%** was the worst sector. Top S&P gainers: Eli Lilly **+3.6%**, AbbVie **+3.4%**, J&J **+3.3%**, Salesforce **+2.7%**, Netflix **+2.3%** ([Vittarthi](https://vittarthi.com/markets/us)). - **Crude kept climbing** (WTI ~$84.8, Brent ~$91.7), reinforcing inflation jitters and pushing Treasury yields higher — the 10-year sat near **4.69–4.71%** — which squeezed high-valuation growth stocks ([Yahoo](https://finance.yahoo.com/markets/), [Trading Strategy Guides recap](https://tradingstrategyguides.com/stock-market-recap-august-18-2026-tech-sinks-for-3rd-day-as-oil-surges/)). Even a reported **$111B media M&A headline** failed to lift sentiment. - Breadth was actually positive on the NYSE (1,980 advancers vs 1,320 decliners) — the damage was concentrated in tech ([Vittarthi](https://vittarthi.com/markets/us)). Home Depot's earnings (retail-weakness narrative) were also in focus. ### 🌅 Today, Wed Aug 19 — pre-market - **US index futures are modestly lower:** S&P mini ~7,708 (implied open −5.5 pts), Dow mini ~53,357 (implied open −57 pts), Nasdaq mini ~29,528 ([CNBC pre-markets](https://www.cnbc.com/pre-markets/)). - **Semiconductor selloff deepened in Asia:** Nikkei **−2.57%**, KOSPI **−5.30%**, Shanghai **−1.94%** ([CNBC pre-markets](https://www.cnbc.com/pre-markets/)). US chip names are down again pre-market — Micron −5.4%, Western Digital −7.3%, Coherent −7.2%, Corning −6.7%, Seagate −6.0%, Intel −4.1%, AMD −3.3% ([stockmarketwatch.com](https://stockmarketwatch.com/indices/sp500/today)). - **Key catalyst today:** the **FOMC Minutes (July 28–29 meeting) and July CPI report are both due at 2:00 PM ET** — the main macro event that could reprice rate expectations and either stabilize or extend the tech pullback ([StrongBuyAnalytics outlook for Aug 19](https://strongbuyanalytics.com/stock-market-outlook)). **Bottom line:** Tech/AI names are in a three-day pullback on the combination of rising oil, sticky elevated Treasury yields, and positioning ahead of this afternoon's FOMC minutes + CPI. Defensives, healthcare, and energy are where the money is rotating.