| Twilio Inc. (TWLO) | S&P 500 | -11.02% |
Shares plummeted amid a broad sell-off in cloud software and technology names as investors retreated from high-multiple tech stocks. The decline reflected growing market concerns over valuation sustainability across the software sector.
Source: Seeking Alpha
| Moderna, Inc. (MRNA) | S&P 500 | -10.01% |
The stock surrendered recent gains from a healthcare sector rotation as broader tech and growth equities faced heavy selling pressure. Profit-taking and sector reallocations further accelerated the sell-off.
Source: Benzinga
| Super Micro Computer, Inc. (SMCI) | S&P 500 | -9.54% |
The AI server provider tumbled alongside broader semiconductor and artificial intelligence infrastructure stocks amid growing anxiety over heavy corporate debt loads and elevated AI capital expenditures.
Source: Reuters
| Palo Alto Networks, Inc. (PANW) | S&P 500 | -7.61% |
The cybersecurity leader sank as part of a widespread contraction in software valuations and market rotation away from tech growth equities.
Source: Seeking Alpha
| CrowdStrike Holdings, Inc. (CRWD) | S&P 500 | -7.45% |
Shares fell sharply as heightened interest rate concerns and tech-sector profit-taking dragged down major cybersecurity and SaaS platforms.
Source: Benzinga
🕐 Data from 17.10.2026 01:00 UTC
