
With Halloween campaigns driving millions in sales each year, the difference between profit and waste comes down to timing. Our data on Halloween E-commerce ad trends shows that scaling at the right moment, by vertical,can dramatically improve ROAS.
Last week, we analyzed CPA trends for Apparel & Accessories in the lead-up to Halloween. Now, we’re continuing the series with a focused look at three more verticals: Clothing, Health & Beauty, and Home & Garden.
Backed by insights from over 100 million E-commerce orders processed annually, and powered by our AI-driven analytics platform, this analysis uncovers real-time patterns across the global E-commerce landscape, delivering intelligent guidance to help brands optimize performance when it matters most.
For performance marketers, the sweet spot lies in maximizing conversions while keeping CPA low. That’s exactly what the following trends show, distinct windows when scaling makes financial sense and moments where holding spend protects your margins.
Let’s dig into each vertical.
The data shows an ideal intersection for Clothing E-commerce brands between October 20–25, this is when conversion volume peaks, and CPA is at its lowest. However, by Halloween, CPA increases significantly while conversions drop, making it inefficient to scale past October 25.

Recommendation:
👉 Front-load your budget and scale hard from Oct 20–25. Optimize creatives and offers before this window to maximize impact.
If you have limited budget, allocate a disproportionate share toward this five-day window to stretch ROAS.
Unlike Clothing, Health & Beauty sees conversion volume build through mid-October, peaking around October 20, then tapering off slightly before Halloween. CPA stays relatively stable throughout the month, dipping just before Halloween, which makes October 15–25 a strong window to scale.

Recommendation:
👉 Scale ad spend between October 15–22. This is when conversion volume peaks and CPA remains stable, making it the most cost-effective window for Health & Beauty campaigns.
For Home & Garden brands, October is not the time to push. While there are historic conversion highs in March and September, the Halloween period tells a different story. From mid-October onward, conversions fall while CPA climbs, a clear sign to pull back budget and avoid waste.

Recommendation:
🚫 Hold all scaling efforts pre-Halloween. Instead, use this time to build lists, or test new creatives. Leverage organic and email marketing rather than paid acquisition during this period to preserve profitability.
Many brands fall into the trap of “always-on” campaigns during seasonal moments. But these graphs make one thing clear: not all days in Q4 are created equal. Here’s why aligning spend to peak efficiency matters:

Q4 is crowded, competitive, and costly. But data-driven decisions can cut through the noise. Here’s what you should remember:
Don’t guess your way through the season. Use this data to build a performance marketing calendar that actually aligns with consumer behavior.
Need help planning your Q4 strategy? Our team can help you audit your ad accounts and identify peak efficiency periods tailored to your vertical.
Let’s talk.👉 Book a Free 15-Minute Consultation
The optimal time depends on your vertical. For Clothing, the best window is October 20–25. Health & Beauty sees peak conversions during October 15–22, while Home & Garden should avoid scaling in October altogether due to rising CPA and lower conversion volume.
Conversion volume generally spikes in the final 10 days of October, especially for apparel and beauty products. However, CPA varies by vertical, meaning timing your budget matters more than simply spending more.
To reduce CPA, align your ad spend with high-conversion windows (e.g., Oct 20–25 for Clothing), use retargeting campaigns, and avoid pushing spend during periods with poor return (like late October for Home & Garden).
Not aggressively. Based on the data, Home & Garden products see a decline in conversions and an increase in CPA in the weeks leading up to Halloween. It’s better to focus on organic content, email campaigns, or prep for Black Friday instead.