Stocks slip as oil climbs on U.S.-Iran tensions; chips rebound while Apple and Oracle weigh — July 20, 2026
The Session
U.S. stocks closed modestly lower on Monday, July 20, 2026, as advancing oil prices and renewed U.S.-Iran military exchanges kept a lid on risk appetite. The S&P 500 fell 14.41 points, or 0.19%, to 7,443.28, and the Dow Jones Industrial Average dropped 307.16 points, or 0.59%, to 51,839.26 [1][2]. The Nasdaq Composite was nearly flat, easing 12.17 points, or 0.05%, to 25,508.07, while the small-cap Russell 2000 slipped 19.79 points, or about 0.7%, to 2,942.43 [1].
The main drivers were geopolitical: the U.S. carried out another round of strikes on Iran over the weekend, lifting crude prices, though sentiment improved intraday after Iranian officials signaled openness to a diplomatic settlement [2]. Bond yields continued to climb alongside oil [1]. A decline of more than 2% in Apple weighed on the price-weighted Dow [2], while investors positioned ahead of a heavy earnings week featuring Alphabet and Tesla on Wednesday [2].
Breadth was mixed. Semiconductor and memory-chip stocks rebounded after a rough stretch, cushioning the Nasdaq [3][6], and crypto-linked shares rallied as bitcoin climbed to a one-month high [3]. Offsetting those gains, several large caps fell on company-specific news — Apple on margin worries, Oracle on a credit-rating cut, and Warner Bros. Discovery and Paramount Skydance after a judge paused their planned merger [4][7][8][11].
Top Gainers
| IREN Limited IREN | +17.00% | Shares jumped after the data-center operator signed $2.8 billion in new AI cloud contracts and raised its year-end AI Cloud annualized run-rate revenue target to more than $4 billion [3][5]. |
| Galaxy Digital GLXY | +10.00% | The digital-asset firm led crypto-linked stocks higher as bitcoin rebounded to its highest level in more than a month [3]. |
| Circle Internet Group CRCL | +9.00% | The stablecoin issuer rose with the broader crypto rally as bitcoin and ether recovered [3]. |
| SanDisk SNDK | +6.00% | Memory-chip stocks rebounded alongside the broader semiconductor complex after recent AI-driven selling [6]. |
| Micron Technology MU | +5.00% | Micron advanced as memory-chip names bounced back with the rest of the chip sector [6]. |
| Advanced Micro Devices AMD | +4.00% | The chipmaker recovered some of its recent losses as semiconductors steadied [3]. |
Top Losers
| Oracle ORCL | -3.98% | Shares fell after S&P Global cut its credit rating amid concerns over heavy capital spending, rising debt and customer concentration, along with a data-center power setback [7][8]. |
| Warner Bros. Discovery WBD | -3.76% | The stock dropped after a federal judge temporarily halted its planned $110 billion merger with Paramount Skydance for at least 14 days [11][12]. |
| Tesla TSLA | -2.96% | Tesla slid for a fourth straight session on margin concerns and a broader tech pullback ahead of its second-quarter earnings due Wednesday [9][10]. |
| Apple AAPL | -2.30% | Apple fell as Bank of America flagged near-term gross-margin pressure from rising component costs, prompting profit-taking after its recent record run [4]. |
| Paramount Skydance PSKY | -2.06% | Shares declined on the same court ruling that paused its $110 billion Warner Bros. Discovery merger [12]. |
References
- How major US stock indexes fared Monday 7/20/2026 — Yahoo Finance (Associated Press)
- Stock market news for July 20, 2026 — CNBC
- Stock Market Today (July 20, 2026): Iran worries derail Nasdaq, S&P 500 despite modest chip comeback — TheStreet
- Why Apple Stock Dropped Today — The Motley Fool
- IREN Signs $2.8bn in New Customer Contracts with Leading AI Developers, Raises 2026 ARR Target to over $4bn — GlobeNewswire
- Micron Jumps 5%, SanDisk Rises 6%, Western Digital Climbs 4% as Memory Stocks Rebound With Chips — 24/7 Wall St.
- Oracle Corp (ORCL) Shares Fall 4.0% -- What GF Score of 88 Tells Investors — GuruFocus
- Stock Market Today: Live Updates 20.07.2026 — TS2
- Tesla stock price ended at $369.57 on Monday, after losing 2.96% — StockInvest.us
- Tesla's Stock Slides Ahead of Q2 Earnings on Margin Concerns and Tech Sell-Off — InteractiveCrypto
- Stock Market Today, July 20: Warner Bros. Discovery Falls 4% as Judge Pauses $110 Billion Paramount Skydance Deal — The Motley Fool
- Stock Market Today, July 20: Warner Bros. Discovery Falls 4% as Judge Pauses $110 Billion Paramount Skydance Deal — Yahoo Finance
Figures are for the trading session shown, compiled from the cited sources. Informational only — not investment advice.