Community price on backpack.tf: 41.0 keys, last changed 2015-12-11 (10.8y ago). The live quote above, 8.23 keys, is 80% lower and last moved 12d 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
20 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.
Green Black Hole Mann of Reason sell price, 2025-09-25 to 2026-10-11: 20 observations, from 41.7 keys to 8.43 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
41.7 keys
34.0 keys
30 SEP 2025 · 21:10 UTC
41.6 keys
34.0 keys
9 OCT 2025 · 08:52 UTC
39.8 keys
35.7 keys
19 OCT 2025 · 20:40 UTC
37.8 keys
34.0 keys
25 OCT 2025 · 17:02 UTC
36.0 keys
32.4 keys
10 NOV 2025 · 01:03 UTC
37.0 keys
33.2 keys
23 JUN 2026 · 07:14 UTC
7.58 keys
6.60 keys
29 JUN 2026 · 01:14 UTC
7.45 keys
6.48 keys
19 JUL 2026 · 22:44 UTC
7.74 keys
6.73 keys
30 JUL 2026 · 08:45 UTC
8.01 keys
6.97 keys
3 AUG 2026 · 00:24 UTC
8.47 keys
7.37 keys
8 AUG 2026 · 03:11 UTC
8.69 keys
7.56 keys
6 SEP 2026 · 00:09 UTC
42.3 keys
36.8 keys
7 SEP 2026 · 10:08 UTC
43.1 keys
37.4 keys
13 SEP 2026 · 18:08 UTC
19.9 keys
17.3 keys
15 SEP 2026 · 18:08 UTC
20.1 keys
17.5 keys
19 SEP 2026 · 02:07 UTC
20.2 keys
17.6 keys
1 OCT 2026 · 12:08 UTC
8.23 keys
7.16 keys
7 OCT 2026 · 21:10 UTC
43.7 keys
38.0 keys
11 OCT 2026 · 15:08 UTC
8.43 keys
7.33 keys
Price history in numbers
20 readings since 25 Sep 2025
Over the last 30 days the Green Black Hole Mann of Reason's sell price ranged from 8.23 keys to 43.7 keys and is down 57.6% after 5 moves. Over a year it ranged from 7.45 keys to 43.7 keys (down 77.7%). Today's 8.43 keys sits at the bottom of its range: the lowest we have recorded is 7.45 keys (29 Jun 2026) and the highest 43.7 keys (7 Oct 2026). The price has moved 19 times since we began recording it — about once every 20 days.