When do Coles and Woolworths specials change?
From 7 October 2026 to 20 October 2026, of the products Cannonball saw go on special, 98.2% at Coles and 34.1% at Woolworths did so on a Wednesday, and 99.6% and 85.2% on a Wednesday or Thursday.
Data from Wednesday 7 October 2026 to Tuesday 20 October 2026, updated every day.
| Weekday | Coles: went on special | Woolworths: went on special |
|---|---|---|
| Monday | 11 | 260 |
| Tuesday | 0 | 130 |
| Wednesday | 8,010 | 3,383 |
| Thursday | 113 | 5,078 |
| Friday | 8 | 324 |
| Saturday | 14 | 391 |
| Sunday | 2 | 363 |
| All 14 days | 8,158 | 9,929 |
Day by day
| Day | Coles: on / off | Woolworths: on / off |
|---|---|---|
| Tuesday 20 October 2026 | 0 / 27 | 39 / 138 |
| Monday 19 October 2026 | 9 / 32 | 207 / 89 |
| Sunday 18 October 2026 | 2 / 34 | 269 / 189 |
| Saturday 17 October 2026 | 12 / 34 | 330 / 218 |
| Friday 16 October 2026 | 6 / 42 | 307 / 188 |
| Thursday 15 October 2026 | 10 / 105 | 3,011 / 3,495 |
| Wednesday 14 October 2026 | 4,483 / 3,671 | 519 / 197 |
| Tuesday 13 October 2026 | 0 / 18 | 91 / 135 |
| Monday 12 October 2026 | 2 / 28 | 53 / 55 |
| Sunday 11 October 2026 | 0 / 48 | 94 / 85 |
| Saturday 10 October 2026 | 2 / 24 | 61 / 142 |
| Friday 9 October 2026 | 2 / 31 | 17 / 76 |
| Thursday 8 October 2026 | 103 / 189 | 2,067 / 2,572 |
| Wednesday 7 October 2026 | 3,527 / 3,490 | 2,864 / 1,910 |
How it’s measured
Product by product, every day (a Sydney day), at Coles and Woolworths, where every store’s promotions are read the same way. A product went on special on the first day it was read on special after a day it wasn’t; a change can show a day after it happened (see Freshness). Shares are of the products read at one store or more that day: almost all of Coles' list, about two thirds of Woolworths'. A product that wasn't read is left out, never counted as not on special. The full method: about Cannonball’s data.
Questions
What day do Coles specials change?
From 7 October 2026 to 20 October 2026, 98.2% of the 8,158 Coles products Cannonball saw go on special did so on a Wednesday.
What day do Woolworths specials change?
From 7 October 2026 to 20 October 2026, 85.2% of the 9,929 Woolworths products Cannonball saw go on special did so on a Wednesday or a Thursday; the day with the most was Thursday (51.1%).
Does the number of specials change much during the week?
Not much. From 7 October 2026 to 20 October 2026, the share of products read that were on special stayed between 28.9% and 32.0% at Coles and between 28.8% and 31.7% at Woolworths: what changes on the day is which products are on special.
How is this counted?
Product by product: a product that wasn't on special one day and was the next "went on special" that day, and the reverse "came off". Only products read on both days count. A product is on special when the chain shows a promotion on it at one store or more that day, as the chain itself labels it.