Historical pre-market losers from Monday, August 3, 2026. 50 stocks declined in pre-market trading. Biggest decliner: AstraZeneca PLC (AZN) at -7.59%.
Pre-market losers are stocks experiencing the largest price drops between 4:00 AM and 9:30 AM ET. These moves are often triggered by earnings misses, guidance cuts, analyst downgrades, or negative macro developments. Low pre-market volume can amplify these moves beyond what regular-session trading would produce.
Significant pre-market declines can present either warning signs or buying opportunities depending on the catalyst. Cross-reference with the earnings calendar and individual stock analysis pages for deeper context.
| Ticker | Company | Sector | Price | % Change |
|---|---|---|---|---|
| AZN | AstraZeneca PLC | Healthcare | $156.77 | -7.59% |
| DOV | Dover Corporation | Industrials | $204.62 | -7.24% |
| CRCL | Circle Internet Group, Inc. | Financial Services | $59.01 | -5.75% |
| PTC | PTC, INC | Technology | $137.20 | -5.51% |
| WDC | Western Digital Corp. | Technology | $520.63 | -4.44% |
| STX | Seagate Technology Holdings PLC Ordinary Shares (Ireland) | Technology | $818.44 | -4.40% |
| NTRS | Northern Trust Corp | Financial Services | $182.19 | -4.19% |
| SWBI | Smith & Wesson Brands, Inc. Common Stock | Industrials | $14.55 | -4.18% |
| MU | Micron Technology, Inc. | Technology | $788.89 | -4.15% |
| SKHY | SK hynix Inc. American Depositary Shares | Other | $137.80 | -4.13% |
| SNDK | Sandisk Corporation Common Stock | Technology | $1165.60 | -4.05% |
| HAS | Hasbro, Inc. | Cons Cyclical | $90.30 | -3.87% |
| ANET | Arista Networks | Technology | $174.01 | -3.52% |
| FOXA | Fox Corporation Class A Common Stock | Comm Serv | $58.23 | -3.50% |
| TER | Teradyne, Inc. Common Stock | Technology | $354.99 | -3.45% |
| ARM | Arm Holdings plc American Depositary Shares | Other | $231.51 | -3.41% |
| VTRS | Viatris Inc. Common Stock | Healthcare | $17.56 | -3.35% |
| MRVL | Marvell Technology, Inc. Common Stock | Technology | $181.29 | -3.34% |
| TYL | Tyler Technologies, Inc. | Technology | $309.60 | -3.29% |
| LRCX | Lam Research Corp | Technology | $283.40 | -3.28% |
| GWW | W.W. Grainger, Inc. | Industrials | $1337.45 | -3.24% |
| DOC | Healthpeak Properties, Inc. | Real Estate | $21.83 | -3.23% |
| KLAC | KLA Corporation Common Stock | Technology | $177.00 | -3.18% |
| LITE | Lumentum Holdings Inc. Common Stock | Technology | $692.00 | -3.07% |
| TSN | Tyson Foods, Inc. | Cons Defensive | $56.20 | -3.04% |
| COHR | Coherent Corp. | Technology | $255.03 | -2.99% |
| EPAM | EPAM SYSTEMS, INC. | Technology | $105.56 | -2.97% |
| PODD | Insulet Corporation | Healthcare | $165.35 | -2.93% |
| BP | BP p.l.c. | Energy | $43.92 | -2.87% |
| DLTR | Dollar Tree Inc. | Cons Cyclical | $127.21 | -2.86% |
| MAR | Marriott International Class A Common Stock | Cons Cyclical | $362.39 | -2.80% |
| CVE | Cenovus Energy Inc. | Other | $29.36 | -2.75% |
| EBAY | eBay Inc | Cons Cyclical | $110.88 | -2.75% |
| AJG | Arthur J. Gallagher & Co. | Financial Services | $249.42 | -2.75% |
| ON | ON Semiconductor Corp | Technology | $79.40 | -2.71% |
| EQNR | Equinor ASA American Depositary Shares (Each Representing One Ordinary Share, nominal value NOK 2.50 per share) | Energy | $39.99 | -2.70% |
| AMAT | Applied Materials Inc | Technology | $494.00 | -2.69% |
| NXPI | NXP Semiconductors N.V. | Technology | $223.01 | -2.68% |
| MRSH | Marsh | Financial Services | $189.69 | -2.68% |
| MPWR | Monolithic Power Systems, Inc. | Technology | $1388.02 | -2.67% |
| AMD | Advanced Micro Devices | Technology | $463.56 | -2.64% |
| VRSK | Verisk Analytics, Inc. Common Stock | Industrials | $194.85 | -2.59% |
| EME | EMCOR Group, Inc. | Industrials | $777.00 | -2.56% |
| OXY | Occidental Petroleum Corporation | Energy | $55.63 | -2.53% |
| WDS | Woodside Energy Group Limited American Depositary Shares, each representing one Ordinary Share | Other | $22.88 | -2.48% |
| BRO | Brown & Brown, Inc. | Financial Services | $70.40 | -2.46% |
| INTC | Intel Corp | Technology | $88.01 | -2.43% |
| ICE | Intercontinental Exchange Inc. | Financial Services | $152.48 | -2.43% |
| TRMB | Trimble Inc. Common Stock | Technology | $56.58 | -2.37% |
| CBRE | CBRE GROUP, INC. | Financial Services | $146.81 | -2.37% |