B
Evidence Grade B
Safe to Cite
Current
34%
34% -- email open rates for negative-toned subject lines (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
34%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Score breakdown
Extraction
75
Source Trust
95
Citation Chain
90
Independence
70
Methodology
30
Freshness
95
Sources (3)
Content Marketing Institute
Primary
Tier B
https://contentmarketinginstitute.com/content-distribution-promotion/email-marketing-tactics ↗
Source Article
7 Ideas for Your Email Marketing Based on Billions of Sends
Also cited by
forbes.com
https://www.forbes.com/
2026-08-18
brevo.com
https://www.brevo.com/
2026-08-18
Original Research
Content Marketing Institute
· Original study ↗
Segmentation
Industrymarketing
Cite this stat
Plain Text
negative-toned subject lines: 34% email open rates. Source: Content Marketing Institute (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/negative-subject-lines
HTML Embed
<blockquote cite="https://lighthousedata.io/data/negative-subject-lines" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>34%</strong> -- email open rates for negative-toned subject lines<br><small>Source: Content Marketing Institute (2026) · <a href="https://lighthousedata.io/data/negative-subject-lines" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.