← 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 (1.7y ago). The live quote above, 72.6 keys, is 31% lower and last moved 2mo 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 1h 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 |
| 4 NOV 2026 · 05:12 UTC | 74.9 keys | 65.7 keys |
| 4 NOV 2026 · 07:12 UTC | 74.9 keys | 65.8 keys |
| 4 NOV 2026 · 09:12 UTC | 74.9 keys | 65.9 keys |
| 4 NOV 2026 · 11:11 UTC | 74.9 keys | 66.1 keys |
| 4 NOV 2026 · 13:12 UTC | 75.0 keys | 66.3 keys |
| 4 NOV 2026 · 15:12 UTC | 75.1 keys | 66.5 keys |
| 4 NOV 2026 · 17:12 UTC | 74.9 keys | 66.3 keys |
| 4 NOV 2026 · 21:12 UTC | 75.0 keys | 66.4 keys |
| 5 NOV 2026 · 03:12 UTC | 74.9 keys | 66.3 keys |
| 5 NOV 2026 · 07:13 UTC | 74.7 keys | 66.2 keys |
Price history in numbers
18 readings since 25 Sep 2025Over the last 30 days the Contagious Eruption Monsieur Grenouille's sell price ranged from 74.7 keys to 75.1 keys and is down 0.2% after 6 moves. Over a year it ranged from 72.6 keys to 109 keys (down 31.4%). Today's 74.7 keys sits in the lower third 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 14 times since we began recording it — about once every 29 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 74.7 keys | 75.1 keys | −0.2% | 6 | 10 |
| 90 days | 72.6 keys | 75.1 keys | +1.6% | 8 | 12 |
| a year | 72.6 keys | 109 keys | −31.4% | 9 | 13 |
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 | 12mo ago | |
| 31.4 keys | 1mo ago | |
| 31.5 keys | 1mo ago | |
| 25.0 keys | 1mo ago | |
| 16.1 keys | 3mo ago | |
| 16.2 keys | 1mo ago | |
| 14.9 keys | 3mo ago | |
| 10.5 keys | 1mo ago | |
| 9.61 keys | 1mo ago |
Other effects on the Monsieur Grenouille
same item, different effect| Item | Value | Updated |
|---|---|---|
| 325 keys | 12mo ago | |
| 234 keys | 12mo ago | |
| 178 keys | 1mo ago | |
| 160 keys | 12mo ago | |
| 125 keys | 12mo ago | |
| 108 keys | 3mo ago | |
| 100 keys | 10mo ago | |
| 100 keys | 12mo ago | |
| 101 keys | 1mo ago | |
| 94.8 keys | 3mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 71.3 keys | 1mo ago | |
| 70.4 keys | 1mo ago | |
| 72.2 keys | 1mo ago | |
| 71.5 keys | 1mo ago | |
| 70.3 keys | 1mo ago | |
| 72.8 keys | 1mo ago | |
| 71.4 keys | 1mo ago | |
| 71.5 keys | 1mo ago |