← All Defragmenting Hard Hat 17% variants
Jellyfish Jam Defragmenting Hard Hat 17%
This price has not changed since 2026-09-29 06:08 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: 135 keys, last changed 2025-08-14 (1.2y ago). The live quote above, 73.3 keys, is 46% 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 | 136 keys | 111 keys |
| 30 SEP 2025 · 22:17 UTC | 135 keys | 110 keys |
| 9 OCT 2025 · 09:52 UTC | 129 keys | 116 keys |
| 25 OCT 2025 · 18:01 UTC | 117 keys | 105 keys |
| 10 NOV 2025 · 02:00 UTC | 37.6 keys | 37.6 keys |
| 4 SEP 2026 · 10:08 UTC | 94.5 keys | 82.2 keys |
| 4 SEP 2026 · 22:08 UTC | 21.6 keys | 18.8 keys |
| 5 SEP 2026 · 12:10 UTC | 21.6 keys | 18.8 keys |
| 6 SEP 2026 · 00:09 UTC | 21.7 keys | 18.8 keys |
| 7 SEP 2026 · 00:08 UTC | 22.0 keys | 19.1 keys |
| 7 SEP 2026 · 12:08 UTC | 22.3 keys | 19.4 keys |
| 8 SEP 2026 · 04:09 UTC | 21.7 keys | 18.9 keys |
| 8 SEP 2026 · 16:09 UTC | 22.0 keys | 19.1 keys |
| 9 SEP 2026 · 06:10 UTC | 21.7 keys | 18.9 keys |
| 11 SEP 2026 · 02:09 UTC | 95.0 keys | 82.6 keys |
| 11 SEP 2026 · 14:08 UTC | 95.2 keys | 82.8 keys |
| 12 SEP 2026 · 02:08 UTC | 95.9 keys | 83.4 keys |
| 12 SEP 2026 · 14:08 UTC | 96.5 keys | 84.0 keys |
| 13 SEP 2026 · 02:08 UTC | 96.9 keys | 84.3 keys |
| 13 SEP 2026 · 14:08 UTC | 97.1 keys | 84.4 keys |
| 14 SEP 2026 · 14:08 UTC | 97.3 keys | 84.6 keys |
| 20 SEP 2026 · 18:09 UTC | 93.5 keys | 81.3 keys |
| 21 SEP 2026 · 06:10 UTC | 96.5 keys | 83.9 keys |
| 22 SEP 2026 · 14:10 UTC | 21.9 keys | 19.1 keys |
| 23 SEP 2026 · 02:08 UTC | 72.3 keys | 62.9 keys |
| 23 SEP 2026 · 14:10 UTC | 71.8 keys | 62.4 keys |
| 29 SEP 2026 · 06:08 UTC | 73.3 keys | 63.8 keys |
| 3 OCT 2026 · 11:09 UTC | 22.0 keys | 19.1 keys |
| 7 OCT 2026 · 13:10 UTC | 94.7 keys | 82.3 keys |
| 8 OCT 2026 · 01:10 UTC | 96.3 keys | 83.7 keys |
| 9 OCT 2026 · 15:11 UTC | 22.4 keys | 19.5 keys |
| 10 OCT 2026 · 23:10 UTC | 22.4 keys | 19.5 keys |
| 11 OCT 2026 · 11:09 UTC | 22.4 keys | 19.5 keys |
| 12 OCT 2026 · 01:09 UTC | 22.3 keys | 19.4 keys |
| 12 OCT 2026 · 13:08 UTC | 22.8 keys | 19.8 keys |
| 13 OCT 2026 · 01:09 UTC | 22.6 keys | 19.6 keys |
| 16 OCT 2026 · 21:09 UTC | 22.8 keys | 19.8 keys |
| 19 OCT 2026 · 07:08 UTC | 23.1 keys | 20.1 keys |
| 22 OCT 2026 · 09:12 UTC | 23.1 keys | 20.6 keys |
| 31 OCT 2026 · 23:12 UTC | 22.4 keys | 19.2 keys |
Price history in numbers
47 readings since 25 Sep 2025Over the last 30 days the Jellyfish Jam Defragmenting Hard Hat 17%'s sell price ranged from 22.3 keys to 96.3 keys and is down 76.3% after 12 moves. Over a year it ranged from 21.6 keys to 97.8 keys (down 40.4%). Today's 22.4 keys sits at the bottom of its range: the lowest we have recorded is 21.6 keys (5 Sep 2026) and the highest 136 keys (25 Sep 2025). The price has moved 45 times since we began recording it — about once every 9 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 22.3 keys | 96.3 keys | −76.3% | 12 | 14 |
| 90 days | 21.6 keys | 97.8 keys | −76.3% | 39 | 41 |
| a year | 21.6 keys | 97.8 keys | −40.4% | 40 | 42 |
Details
| SKU | 31011;5;u284 |
|---|---|
| Last price change | 2026-09-29 06:08 UTC |
| Key rate when recorded | 64.00 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 182 keys | 2mo ago | |
| 179 keys | 1mo ago | |
| 152 keys | 1mo ago | |
| 114 keys | 1mo ago | |
| 113 keys | 1mo ago | |
| 96.1 keys | 1mo ago | |
| 76.6 keys | 2mo ago | |
| 74.7 keys | 1mo ago | |
| 57.0 keys | 1mo ago | |
| 52.6 keys | 2mo ago |
Other effects on the Defragmenting Hard Hat 17%
same item, different effect| Item | Value | Updated |
|---|---|---|
| 250 keys | 7mo ago | |
| 184 keys | 1mo ago | |
| 163 keys | 5mo ago | |
| 158 keys | 1mo ago | |
| 158 keys | 2mo ago | |
| 145 keys | 5mo ago | |
| 128 keys | 4mo ago | |
| 102 keys | 1mo ago | |
| 89.0 keys | 1mo ago | |
| 85.0 keys | 9mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 73.7 keys | 1mo ago | |
| 76.0 keys | 1mo ago | |
| 73.1 keys | 1mo ago | |
| 74.6 keys | 2mo ago | |
| 74.6 keys | 1mo ago | |
| 75.9 keys | 1mo ago | |
| 74.5 keys | 1mo ago | |
| 75.3 keys | 1mo ago |