Community price on backpack.tf: 2.00–2.20 keys, last changed 2026-04-21 (5mo ago). The live quote above, 2.20 keys, is 10% higher and last moved 4h 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.
1 sold on the Steam Community Market in the 24 hours to 2026-08-28 16:03 UTC (8d ago), listed there as “Strange Ballooniphones”. 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 | 2.49 keys | 2.30 keys |
| 19 OCT 2025 · 21:32 UTC | 2.45 keys | 2.24 keys |
| 16 NOV 2025 · 22:42 UTC | 2.15 keys | 1.93 keys |
| 15 DEC 2025 · 00:52 UTC | 2.20 keys | 2.18 keys |
| 11 JAN 2026 · 23:38 UTC | 1.87 keys | 1.66 keys |
| 1 FEB 2026 · 23:45 UTC | 1.92 keys | 1.82 keys |
| 1 MAR 2026 · 00:43 UTC | 1.93 keys | 1.86 keys |
| 1 APR 2026 · 00:31 UTC | 2.04 keys | 1.96 keys |
| 3 MAY 2026 · 22:32 UTC | 1.90 keys | 1.77 keys |
| 1 JUN 2026 · 00:31 UTC | 1.96 keys | 1.88 keys |
| 29 JUN 2026 · 01:14 UTC | 2.05 keys | 1.97 keys |
| 29 JUL 2026 · 00:45 UTC | 2.21 keys | 1.86 keys |
| 21 AUG 2026 · 12:08 UTC | 2.23 keys | 2.16 keys |
| 22 AUG 2026 · 02:09 UTC | 2.24 keys | 2.16 keys |
| 22 AUG 2026 · 12:09 UTC | 2.23 keys | 2.16 keys |
| 23 AUG 2026 · 00:09 UTC | 2.24 keys | 2.17 keys |
| 23 AUG 2026 · 14:09 UTC | 2.24 keys | 2.01 keys |
| 24 AUG 2026 · 06:09 UTC | 2.23 keys | 2.17 keys |
| 24 AUG 2026 · 18:09 UTC | 2.24 keys | 2.16 keys |
| 25 AUG 2026 · 08:09 UTC | 2.24 keys | 2.19 keys |
| 25 AUG 2026 · 18:10 UTC | 2.24 keys | 2.20 keys |
| 26 AUG 2026 · 02:09 UTC | 2.24 keys | 2.19 keys |
| 26 AUG 2026 · 14:09 UTC | 2.24 keys | 2.23 keys |
| 26 AUG 2026 · 22:10 UTC | 2.24 keys | 2.22 keys |
| 27 AUG 2026 · 12:08 UTC | 2.24 keys | 2.18 keys |
| 27 AUG 2026 · 20:11 UTC | 2.24 keys | 2.18 keys |
| 28 AUG 2026 · 12:08 UTC | 2.50 keys | 2.18 keys |
| 29 AUG 2026 · 00:09 UTC | 2.24 keys | 2.16 keys |
| 29 AUG 2026 · 16:09 UTC | 2.28 keys | 2.22 keys |
| 30 AUG 2026 · 08:09 UTC | 2.29 keys | 2.25 keys |
| 31 AUG 2026 · 00:09 UTC | 2.28 keys | 2.25 keys |
| 31 AUG 2026 · 18:10 UTC | 2.26 keys | 2.20 keys |
| 1 SEP 2026 · 04:10 UTC | 2.25 keys | 2.16 keys |
| 1 SEP 2026 · 22:08 UTC | 2.24 keys | 2.20 keys |
| 2 SEP 2026 · 12:09 UTC | 2.21 keys | 2.19 keys |
| 3 SEP 2026 · 00:08 UTC | 2.51 keys | 2.18 keys |
| 3 SEP 2026 · 14:08 UTC | 2.22 keys | 2.15 keys |
| 4 SEP 2026 · 02:08 UTC | 2.25 keys | 2.21 keys |
| 4 SEP 2026 · 20:08 UTC | 2.22 keys | 2.16 keys |
| 5 SEP 2026 · 12:10 UTC | 2.20 keys | 2.18 keys |
Price history in numbers
153 readings since 25 Sep 2025Over the last 30 days the Strange Ballooniphones's sell price ranged from 2.15 keys to 3.28 keys and is down 32.9% after 90 moves. Over a year it ranged from 1.87 keys to 3.28 keys (down 11.5%). Today's 2.20 keys sits in the lower third of its range: the lowest we have recorded is 1.87 keys (11 Jan 2026) and the highest 3.28 keys (10 Aug 2026). The price has moved 135 times since we began recording it — about once every 3 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 2.15 keys | 3.28 keys | −32.9% | 90 | 108 |
| 90 days | 1.92 keys | 3.28 keys | +13.8% | 99 | 117 |
| a year | 1.87 keys | 3.28 keys | −11.5% | 135 | 153 |
Details
| SKU | 31183;11 |
|---|---|
| Last price change | 2026-09-05 12:10 UTC |
| Key rate when recorded | 61.89 ref |
Other effects on the Ballooniphones
same item, different effect| Item | Value | Updated |
|---|---|---|
| 990 keys | 10mo ago | |
| 850 keys | 10mo ago | |
| 821 keys | 10mo ago | |
| 550 keys | 10mo ago | |
| 500 keys | 10mo ago | |
| 440 keys | 10mo ago | |
| 431 keys | 10mo ago | |
| 335 keys | 5mo ago | |
| 225 keys | 10mo ago | |
| 225 keys | 10mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
 Specialized Killstreak Festive Knife | 2.20 keys | 4h ago |
| 2.12 keys | 18d ago | |
| 2.12 keys | 6d ago | |
| 2.12 keys | 1mo ago | |
| 2.12 keys | 1mo ago | |
| 2.12 keys | 3mo ago | |
 Strange Bonk Helm | 2.20 keys | 4h ago |
 Strange Specialized Killstreak Bazaar Bargain | 2.21 keys | 4h ago |