Community price on backpack.tf: 105–125 keys, last changed 2026-07-21 (2mo ago). The live quote above, 121 keys, is inside the community’s range and last moved 14h 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
56 observations
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.
Bubbling Brainiac Hairpiece sell price, 2025-09-25 to 2026-09-05: 56 observations, from 111 keys to 121 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
111 keys
78.7 keys
30 SEP 2025 · 21:07 UTC
111 keys
78.6 keys
19 OCT 2025 · 20:37 UTC
100 keys
78.6 keys
25 OCT 2025 · 16:58 UTC
95.7 keys
74.9 keys
17 NOV 2025 · 06:37 UTC
133 keys
74.7 keys
22 NOV 2025 · 00:38 UTC
145 keys
83.4 keys
19 DEC 2025 · 08:46 UTC
128 keys
80.5 keys
8 JUN 2026 · 00:31 UTC
115 keys
91.7 keys
24 JUN 2026 · 07:13 UTC
91.1 keys
79.3 keys
12 JUL 2026 · 20:45 UTC
102 keys
88.6 keys
19 JUL 2026 · 20:45 UTC
110 keys
96.0 keys
3 AUG 2026 · 02:24 UTC
119 keys
104 keys
10 AUG 2026 · 01:11 UTC
120 keys
105 keys
21 AUG 2026 · 10:09 UTC
121 keys
105 keys
22 AUG 2026 · 02:08 UTC
120 keys
105 keys
22 AUG 2026 · 06:08 UTC
120 keys
105 keys
22 AUG 2026 · 10:09 UTC
121 keys
105 keys
22 AUG 2026 · 12:09 UTC
120 keys
105 keys
22 AUG 2026 · 16:08 UTC
121 keys
105 keys
23 AUG 2026 · 00:08 UTC
121 keys
105 keys
23 AUG 2026 · 02:09 UTC
121 keys
105 keys
23 AUG 2026 · 10:08 UTC
121 keys
105 keys
23 AUG 2026 · 14:09 UTC
121 keys
105 keys
23 AUG 2026 · 18:09 UTC
121 keys
105 keys
24 AUG 2026 · 00:09 UTC
121 keys
106 keys
24 AUG 2026 · 12:09 UTC
121 keys
105 keys
26 AUG 2026 · 02:09 UTC
121 keys
105 keys
26 AUG 2026 · 18:08 UTC
121 keys
106 keys
27 AUG 2026 · 12:08 UTC
122 keys
106 keys
28 AUG 2026 · 14:10 UTC
122 keys
106 keys
29 AUG 2026 · 02:09 UTC
122 keys
106 keys
30 AUG 2026 · 02:09 UTC
122 keys
106 keys
30 AUG 2026 · 14:10 UTC
122 keys
106 keys
1 SEP 2026 · 08:08 UTC
120 keys
105 keys
1 SEP 2026 · 20:08 UTC
121 keys
105 keys
2 SEP 2026 · 10:08 UTC
119 keys
103 keys
3 SEP 2026 · 10:08 UTC
120 keys
104 keys
3 SEP 2026 · 22:08 UTC
122 keys
107 keys
4 SEP 2026 · 22:08 UTC
121 keys
105 keys
5 SEP 2026 · 10:08 UTC
121 keys
105 keys
Price history in numbers
56 readings since 25 Sep 2025
Over the last 30 days the Bubbling Brainiac Hairpiece's sell price ranged from 119 keys to 125 keys and is up 0.6% after 38 moves. Over a year it ranged from 86.5 keys to 145 keys (up 9.3%). Today's 121 keys sits in the middle of its range: the lowest we have recorded is 86.5 keys (1 Jul 2026) and the highest 145 keys (22 Nov 2025). The price has moved 55 times since we began recording it — about once every 6 days.
Collector's Fortified Compound