Community price on backpack.tf: 19.0–22.0 keys, last changed 2016-09-30 (9.9y ago). The live quote above, 12.2 keys, is 36% lower and last moved 8d 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
24 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.
Phosphorous Doctor's Sack sell price, 2025-09-25 to 2026-08-28: 24 observations, from 22.9 keys to 12.2 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
22.9 keys
16.3 keys
30 SEP 2025 · 20:25 UTC
21.9 keys
16.3 keys
9 OCT 2025 · 08:08 UTC
20.9 keys
17.1 keys
19 OCT 2025 · 19:54 UTC
19.9 keys
16.3 keys
25 OCT 2025 · 16:13 UTC
18.9 keys
15.5 keys
10 NOV 2025 · 00:14 UTC
19.4 keys
15.9 keys
24 JUN 2026 · 03:12 UTC
11.2 keys
9.69 keys
29 JUN 2026 · 03:14 UTC
12.1 keys
10.5 keys
5 JUL 2026 · 23:12 UTC
11.0 keys
9.54 keys
12 JUL 2026 · 22:44 UTC
11.4 keys
9.88 keys
19 JUL 2026 · 22:44 UTC
11.9 keys
10.4 keys
29 JUL 2026 · 16:44 UTC
11.8 keys
10.2 keys
3 AUG 2026 · 04:24 UTC
12.2 keys
10.6 keys
11 AUG 2026 · 19:11 UTC
12.2 keys
10.6 keys
23 AUG 2026 · 00:08 UTC
12.2 keys
10.6 keys
23 AUG 2026 · 06:09 UTC
12.2 keys
10.6 keys
23 AUG 2026 · 10:08 UTC
12.2 keys
10.6 keys
23 AUG 2026 · 18:08 UTC
12.2 keys
10.6 keys
24 AUG 2026 · 06:09 UTC
12.1 keys
10.5 keys
24 AUG 2026 · 10:08 UTC
12.1 keys
10.5 keys
25 AUG 2026 · 02:08 UTC
12.1 keys
10.5 keys
25 AUG 2026 · 14:09 UTC
12.1 keys
10.6 keys
26 AUG 2026 · 14:09 UTC
12.2 keys
10.6 keys
28 AUG 2026 · 14:10 UTC
12.2 keys
10.6 keys
Price history in numbers
24 readings since 25 Sep 2025
Over the last 30 days the Phosphorous Doctor's Sack's sell price ranged from 12.1 keys to 12.2 keys and is unchanged after 10 moves. Over a year it ranged from 11.0 keys to 22.9 keys (down 46.7%). Today's 12.2 keys sits in the lower third of its range: the lowest we have recorded is 11.0 keys (5 Jul 2026) and the highest 22.9 keys (25 Sep 2025). The price has moved 23 times since we began recording it — about once every 15 days.