Community price on backpack.tf: 31.0 keys, last changed 2025-06-25 (1.2y ago). The live quote above, 42.8 keys, is 38% higher and last moved 21h 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.
Steam Market asking price: $110.96 — the lowest of one listing for the Vivid Plasma effect when we looked on 2026-09-02 01:28 UTC (4d ago). This is what a seller is asking, not what anything sold for. Steam pays out in Steam wallet funds, not cash, and Valve takes roughly 15% at the till — so asking prices there run well above the 42 keys, 50.22 ref shown above, which comes from the keys-and-metal market on backpack.tf. The two are different markets and are never blended. Steam lists the item as “Unusual Bonk Helm”, with no effect in the name — the effect comes from the individual listing.
Price history
59 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.
Vivid Plasma Bonk Helm sell price, 2025-09-25 to 2026-09-04: 59 observations, from 33.0 keys to 42.8 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
33.0 keys
26.9 keys
30 SEP 2025 · 20:14 UTC
31.9 keys
26.1 keys
19 OCT 2025 · 19:44 UTC
29.0 keys
26.1 keys
25 OCT 2025 · 16:01 UTC
27.6 keys
24.9 keys
4 FEB 2026 · 10:20 UTC
51.7 keys
42.7 keys
8 FEB 2026 · 14:21 UTC
50.5 keys
27.8 keys
22 FEB 2026 · 06:40 UTC
50.9 keys
34.2 keys
5 MAR 2026 · 14:41 UTC
50.5 keys
35.8 keys
15 MAR 2026 · 22:06 UTC
49.3 keys
35.2 keys
25 MAR 2026 · 00:06 UTC
53.0 keys
22.9 keys
16 APR 2026 · 06:28 UTC
51.5 keys
34.9 keys
23 APR 2026 · 22:30 UTC
49.1 keys
33.5 keys
17 MAY 2026 · 20:32 UTC
50.0 keys
41.2 keys
23 MAY 2026 · 20:30 UTC
49.8 keys
41.2 keys
8 JUN 2026 · 00:30 UTC
49.3 keys
35.2 keys
22 JUN 2026 · 17:13 UTC
42.3 keys
36.8 keys
5 JUL 2026 · 23:12 UTC
42.1 keys
36.6 keys
12 JUL 2026 · 22:44 UTC
43.0 keys
37.4 keys
29 JUL 2026 · 00:45 UTC
48.1 keys
41.8 keys
3 AUG 2026 · 00:24 UTC
51.0 keys
44.2 keys
21 AUG 2026 · 02:08 UTC
23.7 keys
20.6 keys
21 AUG 2026 · 14:08 UTC
23.7 keys
20.6 keys
22 AUG 2026 · 14:08 UTC
23.8 keys
20.7 keys
23 AUG 2026 · 02:08 UTC
24.4 keys
21.3 keys
24 AUG 2026 · 02:09 UTC
26.7 keys
23.2 keys
25 AUG 2026 · 06:08 UTC
37.1 keys
32.2 keys
26 AUG 2026 · 06:09 UTC
38.0 keys
33.1 keys
26 AUG 2026 · 18:08 UTC
38.5 keys
33.5 keys
27 AUG 2026 · 18:08 UTC
39.5 keys
34.3 keys
28 AUG 2026 · 07:13 UTC
40.0 keys
34.7 keys
29 AUG 2026 · 06:08 UTC
40.8 keys
35.5 keys
29 AUG 2026 · 18:10 UTC
41.2 keys
35.8 keys
30 AUG 2026 · 18:09 UTC
41.7 keys
36.3 keys
31 AUG 2026 · 06:09 UTC
41.8 keys
36.4 keys
1 SEP 2026 · 06:08 UTC
41.8 keys
36.3 keys
1 SEP 2026 · 18:08 UTC
42.1 keys
36.6 keys
2 SEP 2026 · 18:08 UTC
42.0 keys
36.5 keys
3 SEP 2026 · 06:08 UTC
42.3 keys
36.8 keys
4 SEP 2026 · 10:08 UTC
44.1 keys
38.3 keys
4 SEP 2026 · 22:07 UTC
42.8 keys
37.2 keys
Price history in numbers
59 readings since 25 Sep 2025
Over the last 30 days the Vivid Plasma Bonk Helm's sell price ranged from 23.7 keys to 51.5 keys and is down 16.9% after 29 moves. Over a year it ranged from 23.7 keys to 54.2 keys (up 29.8%). Today's 42.8 keys sits in the middle of its range: the lowest we have recorded is 23.7 keys (21 Aug 2026) and the highest 54.2 keys (19 Feb 2026). The price has moved 58 times since we began recording it — about once every 6 days.
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