Strange Professional Killstreak Australium Black Box
1 sold on the Steam Community Market in the 24 hours to 2026-08-23 04:04 UTC (13d ago), listed there as “Strange Professional Killstreak Australium Black Box”. That is a different market from the prices above: Steam takes roughly 15% and pays out in Steam wallet funds rather than cash, so its prices sit above what an item realises elsewhere. Volume is unavailable for unusuals — Steam’s name for one leaves out the effect, so every effect shares a single listing.
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 | 27.6 keys | 26.6 keys |
| 19 OCT 2025 · 22:07 UTC | 25.8 keys | 25.1 keys |
| 9 NOV 2025 · 23:51 UTC | 26.7 keys | 26.5 keys |
| 8 DEC 2025 · 00:58 UTC | 27.2 keys | 26.0 keys |
| 4 JAN 2026 · 23:00 UTC | 25.5 keys | 24.5 keys |
| 1 FEB 2026 · 23:46 UTC | 24.9 keys | 24.2 keys |
| 22 FEB 2026 · 22:42 UTC | 23.4 keys | 23.0 keys |
| 22 MAR 2026 · 22:08 UTC | 25.7 keys | 24.7 keys |
| 29 APR 2026 · 00:32 UTC | 22.8 keys | 22.5 keys |
| 24 MAY 2026 · 22:32 UTC | 24.1 keys | 23.3 keys |
| 15 JUN 2026 · 00:33 UTC | 22.6 keys | 22.2 keys |
| 12 JUL 2026 · 22:44 UTC | 23.8 keys | 23.5 keys |
| 10 AUG 2026 · 01:11 UTC | 28.3 keys | 27.3 keys |
| 22 AUG 2026 · 10:09 UTC | 27.5 keys | 27.0 keys |
| 23 AUG 2026 · 00:09 UTC | 27.5 keys | 27.4 keys |
| 23 AUG 2026 · 14:09 UTC | 27.5 keys | 26.4 keys |
| 24 AUG 2026 · 06:09 UTC | 27.4 keys | 26.6 keys |
| 24 AUG 2026 · 18:09 UTC | 27.3 keys | 26.8 keys |
| 25 AUG 2026 · 04:09 UTC | 28.1 keys | 26.9 keys |
| 25 AUG 2026 · 14:09 UTC | 28.1 keys | 27.0 keys |
| 26 AUG 2026 · 00:09 UTC | 28.1 keys | 27.3 keys |
| 26 AUG 2026 · 12:09 UTC | 28.2 keys | 27.5 keys |
| 26 AUG 2026 · 18:09 UTC | 31.7 keys | 27.5 keys |
| 27 AUG 2026 · 06:09 UTC | 31.7 keys | 27.6 keys |
| 27 AUG 2026 · 16:09 UTC | 31.7 keys | 27.6 keys |
| 28 AUG 2026 · 07:14 UTC | 28.1 keys | 27.4 keys |
| 28 AUG 2026 · 16:09 UTC | 28.1 keys | 26.9 keys |
| 29 AUG 2026 · 08:10 UTC | 28.1 keys | 27.4 keys |
| 30 AUG 2026 · 00:10 UTC | 31.8 keys | 27.7 keys |
| 30 AUG 2026 · 16:08 UTC | 28.1 keys | 27.7 keys |
| 31 AUG 2026 · 04:10 UTC | 27.9 keys | 27.6 keys |
| 31 AUG 2026 · 20:11 UTC | 27.8 keys | 27.8 keys |
| 1 SEP 2026 · 04:10 UTC | 27.6 keys | 27.6 keys |
| 1 SEP 2026 · 20:08 UTC | 27.5 keys | 24.8 keys |
| 2 SEP 2026 · 10:08 UTC | 27.1 keys | 26.7 keys |
| 3 SEP 2026 · 02:09 UTC | 27.4 keys | 25.3 keys |
| 3 SEP 2026 · 16:08 UTC | 28.2 keys | 27.5 keys |
| 4 SEP 2026 · 06:09 UTC | 27.4 keys | 26.7 keys |
| 4 SEP 2026 · 20:08 UTC | 27.2 keys | 26.6 keys |
| 5 SEP 2026 · 12:10 UTC | 27.0 keys | 26.9 keys |
Price history in numbers
147 readings since 25 Sep 2025Over the last 30 days the Strange Professional Killstreak Australium Black Box's sell price ranged from 27.0 keys to 31.8 keys and is down 4.5% after 87 moves. Over a year it ranged from 22.3 keys to 31.8 keys (down 2.1%). Today's 27.0 keys sits in the middle of its range: the lowest we have recorded is 22.3 keys (3 May 2026) and the highest 31.8 keys (30 Aug 2026). The price has moved 132 times since we began recording it — about once every 3 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 27.0 keys | 31.8 keys | −4.5% | 87 | 102 |
| 90 days | 22.6 keys | 31.8 keys | +17.0% | 96 | 111 |
| a year | 22.3 keys | 31.8 keys | −2.1% | 132 | 147 |
Details
| SKU | 228;11;australium;kt-3 |
|---|---|
| Last price change | 2026-09-05 12:10 UTC |
| Key rate when recorded | 61.89 ref |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 27.0 keys | 4h ago | |
| 27.0 keys | 10h ago | |
| 25.9 keys | 12h ago | |
| 26.7 keys | 1d ago | |
| 26.0 keys | 14h ago | |
| 26.8 keys | 3d ago | |
| 27.0 keys | 3d ago | |
| 26.8 keys | 2d ago |