B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
21.3%
21.3% -- email engagement decline for emails using 'shop' (2026)
Using the word 'Shop' in Valentine's Day promotional email subject lines causes a 21.3% decline in engagement.
- Specific to Valentine's Day promotional email subject lines sent between January 15th and February 14th
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
21.3%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
61,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
50
Citation Chain
90
Independence
30
Methodology
45
Freshness
83
Source
Jacquard
Primary
Tier A
https://retailtimes.co.uk/your-valentine-drives-22-higher-engagement-than-valentines-day-study-of-61… ↗
Source Article
"Your Valentine" drives 22% higher engagement than "Valentine's Day", study of 61,000 emails reveals
As brands prepare for Valentine’s Day marketing campaigns – a $25.8B US holiday in 2024 – new research reveals that emphasising human connection over the holiday itself boosts engagement by 22%. A ten-year study of over 61,000 email subject lines carried out by marketing platform Jacquard (www.jacqu…
Original Research
Jacquard
· Original study ↗
Methodology
Study of 61,000 email subject lines
Methodology documented
Segmentation
Channelcommon_crawl
Cite this stat
Plain Text
emails using 'shop': 21.3% email engagement decline. Source: Jacquard (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-engagement-decline-shop
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-engagement-decline-shop" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>21.3%</strong> -- email engagement decline for emails using 'shop'<br><small>Source: Jacquard (2026) · <a href="https://lighthousedata.io/data/email-engagement-decline-shop" 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.