Prime Big Deal Days Case Study: Star Product Benched, Sales Still Up

Prime Big Deal Days, October 6 to 7, 2026, vs. the same event in 2025

Stock on one of its main products was running low, so this instant noodle brand made a call that takes nerve: it kept the product off deal. For Amazon’s Prime Big Deal Days, October 6 and 7, 2026, the 9-pack sat out, two other flavors stepped up, and sales still rose 7% on the same event a year earlier, to $21.6K. On day one, $862 in ads sat behind $11.5K in sales, and four of every five dollars came in without an ad click.

+7%Event sales vs. 2025$21.6K over two days
79%Day one sales without an ad$9.1K of $11.5K
7.5%Day one TACoS$862 in ad spend
623Day one orders516 without an ad click

A star product running on empty

The partner sells instant ramen, cup noodles and noodle bowls on Amazon. One of its main products is a 9-pack, and stock was running low, with the next shipment not due on Amazon until late November. By mid-October it was down to its last 200 units. Putting it on deal would have sold through what was left, leaving the brand without it in the weeks before the holidays and costing it the ranking it had built.

The play: bench the star, start the bench

  1. Bench the 9-pack. The 9-pack stayed at full price through the event instead of selling through at a discount.
  2. Give the other flavors the spotlight. Deals ran on other products, including two ramen flavors, so event shoppers had a reason to try them.
  3. Keep the ad budget tight. Ad spend on day one was $862, held in line with the brand’s spend at the same event a year earlier.
  4. Stretch the last of the stock. After the event, the 9-pack’s price was raised to $29.89 to slow its sales until the next shipment lands.

The scoreboard

Day one brought in $11.5K from 623 orders. Only 107 of those orders came from an ad click, and ads accounted for $2.4K of sales, a ROAS of 2.7 and a TACoS of 7.5%. The other $9.1K, 79% of the day, came from shoppers who found the brand on their own. Across both days, the event brought in $21.6K from 1,175 units, up 7% in sales and 5% in units on the 2025 event, without the 9-pack on deal. The two flavors on deal saw large lifts and picked up demand that would otherwise have gone to the 9-pack.

Where day one sales came from
Day one sales
Ads $2.4K
Without an ad: $9.1K
$11.5K

Prime Big Deal Days, day one, October 6, 2026 · ad-attributed sales in grey, all other sales in teal

Source: Amazon Seller Central and Amazon Ads, day one report, October 6, 2026. Figures rounded.

The event against last year, and day one up close
Event sales
Up 7%

2025$20.2K2026$21.6K

Event units
Up 5%

20251,12020261,175

Day one orders
516 came without an ad click

From ads107All orders623

Day one ad return
ROAS 2.7

Ad dollar$1Ad sales$2.70

Source: Amazon Seller Central and Amazon Ads. Event totals and year-over-year growth from the post-event review; day one figures from the day one report. Figures rounded, each in the less flattering direction.

Why sitting out the star still paid off

Many brands put their best-known products on deal for every event, because those are what shoppers already want. When stock is short, that habit costs twice: the product sells out at a discount, then the brand misses full-price sales and loses ranking while it is out of stock.

Here the brand kept its 9-pack in stock and still grew the event. Most of day one’s sales came without an ad, which suggests shoppers were finding the deals on the other flavors through search and the deal pages on their own. The ad budget only had to add to that, which is why TACoS stayed at 7.5% on the biggest day of the fall.

Your star doesn’t have to play every game. Sometimes the win is keeping it healthy for the holidays.

The full picture

Metric Result Compared with
Event sales, two days $21.6K $20.2K, Prime Big Deal Days 2025
Event units, two days 1,175 1,120, Prime Big Deal Days 2025
Day one sales $11.5K 79% without an ad
Day one ad spend $862 TACoS 7.5%
Day one orders 623 107 from ads
Day one ACoS and ROAS 36.2% / 2.7 ad-attributed sales only
Day one ad conversion rate 12.7% orders per ad click

All figures rounded, each in the less flattering direction. 2025 figures derived from the reported growth rates.

Day one comes from the brand’s day one report; the two-day totals and year-over-year growth come from the review call after the event. Day two was not reported separately. The growth is modest, and the bigger result is that it came without the brand’s 9-pack on deal. The partner is anonymous. We will update this page after the 2027 event.

Steal this if a key product is low on stock

Three checks before your next event.

First, compare each deal product’s stock with its expected event sales plus the weeks after. If a product would sell out, keep it off deal or cap the quantity. Second, choose the products with stock that shoppers in the same search would happily buy instead, and put the deal there. Third, raise the price on a low-stock product after the event if a new shipment is weeks away. It slows sales enough to avoid a stockout and protects the product’s ranking.

An event can grow a brand without one of its main products, if the deal sits on products that can take the traffic.

Frequently asked questions

Should I put my top products on deal for Prime Big Deal Days?

Only if you have enough stock for the event and the weeks after. If the product would sell out, keep it at full price or cap the deal quantity, and put the deal on related products with healthy stock.

What happens to Amazon ranking when a product sells out?

Sales stop, ads stop serving and the product loses sales history, so its search ranking usually drops. Rebuilding it after restocking can take weeks and extra ad spend.

Why can ACoS look high while TACoS stays low?

ACoS only counts sales Amazon credits to ads. When most sales come without an ad click, ACoS can look high while ad spend is a small share of total sales. TACoS shows that full picture.

Do grocery and food products sell during October Prime events?

Yes, especially products shoppers stock up on, like multipacks and pantry staples. Deals give regular buyers a reason to buy more at once and new buyers a reason to try a flavor.

Does Canopy plan event deals around inventory?

Yes. Canopy brand managers check stock before choosing deal products and adjust prices and deals to avoid selling out before the holidays.

Is a low-stock product about to sink your next event?

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