Qualys is trading at $211.47, up 11.03% in pre-market; no company-specific announcement explaining the October 21 jump appeared in available reporting.
- The latest company press release surfaced October 14; analyst target changes and product news predated the move.
- Qualys had recently drawn analyst support; software/cybersecurity shares were described as benefiting from sector rotation, but this does not establish the cause.
- Broad-market indicators showed moderate gains, insufficient to confidently attribute the move to market-wide sentiment.