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Movers explained · 2026-07-21

Archived explainer. For the current picture see today's QLYS page.

Why Is QUALYS INC (QLYS) Stock Down Today?

By the Top Tier Newswire AI Desk · July 21, 2026 at 11:46 PM ET · reviewed against 1 wire stories

QUALYS INC (QLYS) is down -8.05% in the latest session. Our newswire has captured 1 story on QLYS across 1 source in the last 36 hours, with AI sentiment reading mixed (avg 50/100).

Why QLYS stock is down today

QLYS stock closed down 8.05% at $143.78 on July 21, 2026, marking one of its largest intraday declines in recent months. The stock opened with a slight gap down and continued to fall throughout the session, reaching a low of $141.91. The decline comes ahead of the company’s scheduled Q2 2026 earnings report on August 4 and follows a series of analyst updates that have raised price targets but not necessarily signaled strong conviction in the near-term outlook.

What Happened

Qualys announced that it will report second quarter 2026 financial results on August 4, but no preliminary results or guidance were provided in the disclosure. The stock opened at $155.57, down 0.5% from the previous close, and quickly moved lower throughout the session. By the end of the day, the stock had fallen to $143.78. The decline was broad and unrelenting, with the stock losing more than $12 in value over the course of the day. The volume of 0.8 million shares was in line with the 3-month average, suggesting the move was not driven by a surge in retail or institutional selling pressure.

Recent insider transactions also point to a pattern of selling by key stakeholders. On July 14, CEO and President Sumedh S. Thakar sold shares, followed by additional sales from board member Wendy Pfeiffer and General Counsel Bruce K. Posey on July 20. Over the last 90 days, insiders have sold a total of $10.4 million in company stock, with no insider purchases reported.

What To Watch

Investors should focus on Qualys’ second quarter earnings report on August 4 for insight into the company’s performance and guidance for the remainder of the year. The report will be the first major data point since the recent analyst upgrades and could provide clarity on whether the stock’s decline reflects anticipation of a slowdown or a broader shift in market sentiment.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Not financial advice.

QLYS by the numbers

Last: $143.78Session: -8.05%Coverage: 1 stories / 1 sourcesAI sentiment: 50/100 (mixed)Mkt cap: $5.6BP/E: 28.152w: $74.51 to $167.86
QLYS · Jul 21 session (5-min) · -8.10% vs prior close · updated 11:46 PM ET
$141$149$157prev close $156.37$143.707:30 AM10:15 AM1:00 PM3:45 PM6:30 PM7:30 AM · $155.808:30 AM · $155.948:35 AM · $155.878:45 AM · $155.568:50 AM · $155.378:55 AM · $155.669:30 AM · $153.419:35 AM · $151.909:40 AM · $150.019:45 AM · $146.759:50 AM · $145.799:55 AM · $146.4910:00 AM · $147.1310:05 AM · $147.0710:10 AM · $147.6810:15 AM · $146.8010:20 AM · $147.0710:25 AM · $147.5010:30 AM · $147.2910:35 AM · $146.5110:40 AM · $146.3710:45 AM · $146.1210:50 AM · $146.5810:55 AM · $145.9111:00 AM · $145.2111:05 AM · $145.0711:10 AM · $145.2411:15 AM · $145.1911:20 AM · $144.6711:25 AM · $144.8811:30 AM · $144.9911:35 AM · $144.7811:40 AM · $144.8011:45 AM · $144.8111:50 AM · $145.0111:55 AM · $145.2012:00 PM · $144.7012:05 PM · $145.3412:10 PM · $145.4212:15 PM · $145.1112:20 PM · $144.7912:25 PM · $144.5512:30 PM · $144.9312:35 PM · $144.7412:40 PM · $144.6912:45 PM · $144.2412:50 PM · $144.1912:55 PM · $143.381:00 PM · $142.921:05 PM · $143.171:10 PM · $142.621:15 PM · $142.461:20 PM · $142.761:25 PM · $142.631:30 PM · $142.631:35 PM · $142.471:40 PM · $142.281:45 PM · $142.431:50 PM · $142.441:55 PM · $142.842:00 PM · $142.842:05 PM · $142.662:10 PM · $142.652:15 PM · $142.492:20 PM · $142.422:25 PM · $142.342:30 PM · $142.602:35 PM · $142.632:40 PM · $142.682:45 PM · $142.682:50 PM · $142.782:55 PM · $142.683:00 PM · $142.803:05 PM · $143.123:10 PM · $143.203:15 PM · $143.493:20 PM · $143.463:25 PM · $143.073:30 PM · $143.053:35 PM · $143.193:40 PM · $143.163:45 PM · $142.913:50 PM · $143.753:55 PM · $143.744:00 PM · $143.786:30 PM · $143.70
AI sentiment, last 36h · averaged over 1 story · 50/100 neutral
AI sentiment 50/100 (neutral)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 1 story on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishPR Newswire · sentiment 50 · Qualys to Report Second Quarter 2026 Financial Results on August 4, 2026PR Newswire · 50Qualys to Report Second Quarter 2026 Financial Results on August 4, 2026
8d agoPR NewswireNEUTRAL 50Earnings

Qualys to Report Second Quarter 2026 Financial Results on August 4, 2026

FOSTER CITY, Calif., July 21, 2026 /PRNewswire/ -- Qualys, Inc. (NASDAQ: QLYS), a pioneer and leading provider of disruptive cloud-based IT, security and compliance solutions, today announced that the company will report its financial results for the second quarter 2026 after the market...

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More on QLYS: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier QLYS move explainers: 2026-07-22 · 2026-07-21