← All Monsieur Grenouille variants
Contagious Eruption Monsieur Grenouille
This price has not changed since 2026-09-09 08:09 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 105 keys, last changed 2025-03-02 (1.6y ago). The live quote above, 72.6 keys, is 31% lower and last moved 1mo ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 108 keys | 88.7 keys |
| 30 SEP 2025 · 22:51 UTC | 108 keys | 88.6 keys |
| 9 OCT 2025 · 10:22 UTC | 103 keys | 93.1 keys |
| 19 OCT 2025 · 22:18 UTC | 98.4 keys | 88.6 keys |
| 25 OCT 2025 · 18:30 UTC | 93.7 keys | 84.4 keys |
| 10 NOV 2025 · 02:25 UTC | 109 keys | 98.0 keys |
| 8 SEP 2026 · 16:09 UTC | 73.5 keys | 63.9 keys |
| 9 SEP 2026 · 08:09 UTC | 72.6 keys | 63.1 keys |
Price history in numbers
8 readings since 25 Sep 2025The price has not been re-read inside the last 30 days. Over a year it ranged from 72.6 keys to 109 keys (down 26.3%). Today's 72.6 keys sits at the bottom of its range: the lowest we have recorded is 72.6 keys (9 Sep 2026) and the highest 109 keys (10 Nov 2025). The price has moved 7 times since we began recording it — about once every 50 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 90 days | 72.6 keys | 73.5 keys | −1.3% | 1 | 2 |
| a year | 72.6 keys | 109 keys | −26.3% | 4 | 5 |
Details
| SKU | 31280;5;u250 |
|---|---|
| Last price change | 2026-09-09 08:09 UTC |
| Key rate when recorded | 62.00 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 590 keys | 11mo ago | |
| 31.4 keys | 13d ago | |
| 31.5 keys | 11d ago | |
| 25.0 keys | 13d ago | |
| 16.1 keys | 2mo ago | |
| 16.2 keys | 12d ago | |
| 14.9 keys | 2mo ago | |
| 10.5 keys | 12d ago | |
| 9.61 keys | 13d ago |
Other effects on the Monsieur Grenouille
same item, different effect| Item | Value | Updated |
|---|---|---|
| 325 keys | 11mo ago | |
| 234 keys | 11mo ago | |
| 178 keys | 12d ago | |
| 160 keys | 11mo ago | |
| 125 keys | 11mo ago | |
| 108 keys | 2mo ago | |
| 100 keys | 9mo ago | |
| 100 keys | 11mo ago | |
| 101 keys | 13d ago | |
| 94.8 keys | 2mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 71.3 keys | 16d ago | |
| 70.4 keys | 14d ago | |
| 72.2 keys | 12d ago | |
| 71.5 keys | 11d ago | |
| 72.8 keys | 12d ago | |
| 70.3 keys | 14d ago | |
| 71.4 keys | 12d ago | |
| 71.5 keys | 11d ago |