Community price on backpack.tf: 165 keys, last changed 2024-03-28 (2.5y ago). The live quote above, 121 keys, is 27% lower and last moved 14d 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
57 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 Data Mining Light sell price, 2025-09-25 to 2026-10-07: 57 observations, from 166 keys to 126 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
166 keys
136 keys
30 SEP 2025 · 21:06 UTC
166 keys
136 keys
19 OCT 2025 · 20:35 UTC
151 keys
136 keys
25 OCT 2025 · 16:57 UTC
144 keys
129 keys
23 JUN 2026 · 07:14 UTC
105 keys
91.1 keys
29 JUN 2026 · 07:13 UTC
109 keys
95.1 keys
12 JUL 2026 · 22:44 UTC
104 keys
90.3 keys
19 JUL 2026 · 18:44 UTC
108 keys
93.9 keys
29 JUL 2026 · 08:45 UTC
112 keys
97.2 keys
10 AUG 2026 · 11:10 UTC
117 keys
101 keys
19 AUG 2026 · 06:33 UTC
67.7 keys
58.9 keys
31 AUG 2026 · 06:09 UTC
68.2 keys
59.3 keys
2 SEP 2026 · 08:08 UTC
114 keys
99.1 keys
4 SEP 2026 · 04:08 UTC
105 keys
91.4 keys
4 SEP 2026 · 16:08 UTC
118 keys
102 keys
5 SEP 2026 · 18:08 UTC
119 keys
104 keys
6 SEP 2026 · 12:09 UTC
124 keys
107 keys
7 SEP 2026 · 06:08 UTC
121 keys
105 keys
8 SEP 2026 · 06:09 UTC
120 keys
104 keys
10 SEP 2026 · 00:08 UTC
121 keys
106 keys
11 SEP 2026 · 00:08 UTC
123 keys
107 keys
11 SEP 2026 · 14:08 UTC
123 keys
107 keys
12 SEP 2026 · 14:08 UTC
125 keys
108 keys
14 SEP 2026 · 06:08 UTC
125 keys
108 keys
14 SEP 2026 · 20:08 UTC
125 keys
109 keys
20 SEP 2026 · 10:08 UTC
126 keys
109 keys
21 SEP 2026 · 08:09 UTC
127 keys
110 keys
22 SEP 2026 · 08:09 UTC
128 keys
111 keys
28 SEP 2026 · 14:07 UTC
122 keys
106 keys
29 SEP 2026 · 16:10 UTC
121 keys
105 keys
2 OCT 2026 · 13:12 UTC
120 keys
104 keys
3 OCT 2026 · 23:09 UTC
122 keys
106 keys
4 OCT 2026 · 03:09 UTC
120 keys
104 keys
4 OCT 2026 · 05:09 UTC
121 keys
105 keys
4 OCT 2026 · 09:09 UTC
122 keys
106 keys
4 OCT 2026 · 17:07 UTC
123 keys
107 keys
5 OCT 2026 · 01:09 UTC
123 keys
107 keys
5 OCT 2026 · 13:08 UTC
124 keys
108 keys
6 OCT 2026 · 13:09 UTC
125 keys
109 keys
7 OCT 2026 · 01:09 UTC
126 keys
110 keys
Price history in numbers
57 readings since 25 Sep 2025
Over the last 30 days the Phosphorous Data Mining Light's sell price ranged from 120 keys to 128 keys and is up 1.3% after 23 moves. Over a year it ranged from 9.53 keys to 151 keys (down 16.3%). Today's 126 keys sits in the upper third of its range: the lowest we have recorded is 9.53 keys (28 Aug 2026) and the highest 166 keys (25 Sep 2025). The price has moved 56 times since we began recording it — about once every 7 days.