Historical pre-market losers from Wednesday, July 29, 2026. 50 stocks declined in pre-market trading. Biggest decliner: CoStar Group Inc (CSGP) at -13.95%.
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 |
|---|---|---|---|---|
| CSGP | CoStar Group Inc | Real Estate | $26.10 | -13.95% |
| VRT | Vertiv Holdings Co Class A Common Stock | Technology | $244.10 | -9.45% |
| KLAC | KLA Corporation Common Stock | Technology | $174.00 | -8.81% |
| BSX | Boston Scientific Corp. | Healthcare | $43.50 | -5.56% |
| CAT | Caterpillar Inc. | Industrials | $804.50 | -4.32% |
| VRSK | Verisk Analytics, Inc. Common Stock | Industrials | $204.39 | -3.71% |
| PG | Procter & Gamble Company | Cons Defensive | $144.00 | -3.28% |
| AMAT | Applied Materials Inc | Technology | $462.88 | -2.85% |
| AON | Aon plc Class A | Financial Services | $371.00 | -2.69% |
| HLT | Hilton Worldwide Holdings Inc. | Cons Cyclical | $322.43 | -2.67% |
| NXPI | NXP Semiconductors N.V. | Technology | $252.50 | -2.55% |
| BCS | Barclays PLC | Financial Services | $26.30 | -2.52% |
| LRCX | Lam Research Corp | Technology | $263.00 | -2.45% |
| SAN | Banco Santander S.A. | Financial Services | $13.64 | -2.43% |
| DEO | Diageo plc | Other | $86.79 | -2.37% |
| UL | Unilever plc | Cons Defensive | $65.31 | -2.33% |
| BBVA | Banco Bilbao Vizcaya Argentaria, S.A. | Financial Services | $25.95 | -2.15% |
| WM | Waste Management, Inc. | Industrials | $234.50 | -2.05% |
| RACE | Ferrari N.V. | Other | $382.21 | -2.03% |
| ETN | Eaton Corporation, plc Ordinary Shares | Industrials | $378.65 | -1.97% |
| HLN | Haleon plc American Depositary Shares (Each representing two Ordinary Shares) | Other | $10.07 | -1.95% |
| WELL | Welltower Inc. | Real Estate | $243.57 | -1.92% |
| V | VISA Inc. | Financial Services | $359.99 | -1.80% |
| ARGX | argenx SE American Depositary Shares | Other | $872.23 | -1.74% |
| URI | United Rentals, Inc. | Industrials | $1091.26 | -1.59% |
| SKHY | SK hynix Inc. American Depositary Shares | Other | $128.21 | -1.51% |
| RCL | Royal Caribbean Group | Cons Cyclical | $317.90 | -1.43% |
| CBRE | CBRE GROUP, INC. | Financial Services | $145.00 | -1.39% |
| MS | Morgan Stanley | Financial Services | $211.58 | -1.38% |
| CCL | Carnival Corporation Ltd. | Cons Cyclical | $27.84 | -1.38% |
| FERG | Ferguson Enterprises Inc. | Industrials | $232.02 | -1.33% |
| ING | ING Groep N.V. American Depositary Shares | Other | $32.85 | -1.29% |
| PWR | Quanta Services, Inc. | Industrials | $581.27 | -1.21% |
| CMI | Cummins Inc. | Industrials | $634.18 | -1.16% |
| BKNG | Booking Holdings Inc. Common Stock | Cons Cyclical | $197.02 | -1.15% |
| APP | Applovin Corporation Class A Common Stock | Technology | $413.45 | -1.14% |
| NSC | Norfolk Southern Corp. | Industrials | $335.00 | -1.13% |
| MFG | Mizuho Financial Group, Inc. American Depositary Shares (Each representing one-fifth of an Ordinary Share) | Other | $9.98 | -1.09% |
| ADI | Analog Devices, Inc. | Technology | $361.88 | -1.08% |
| TT | Trane Technologies plc | Industrials | $465.00 | -1.07% |
| NWG | NatWest Group plc American Depositary Shares, (each representing two (2) Ordinary Shares) | Financial Services | $17.57 | -1.07% |
| DE | Deere & Company | Industrials | $633.00 | -1.07% |
| MRVL | Marvell Technology, Inc. Common Stock | Technology | $172.63 | -1.05% |
| MPWR | Monolithic Power Systems, Inc. | Technology | $1269.06 | -1.01% |
| AEM | Agnico Eagle Mines Ltd. | Basic Materials | $142.29 | -0.99% |
| NGG | National Grid PLC | Other | $80.08 | -0.96% |
| ARM | Arm Holdings plc American Depositary Shares | Other | $242.49 | -0.92% |
| GEV | GE Vernova Inc. | Industrials | $935.00 | -0.89% |
| DELL | Dell Technologies Inc. | Technology | $388.62 | -0.89% |
| IBN | ICICI Bank Limited | Other | $30.00 | -0.86% |