Community price on backpack.tf: 31.0–35.0 keys, last changed 2026-07-05 (3mo ago). The live quote above, 36.2 keys, is 17% higher 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.
Steam Market asking price: $82.83 — the lowest of 2 listings for the Bubbling effect when we looked on 2026-10-11 01:32 UTC (2d 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 36 keys, 11 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 Hong Kong Cone”, with no effect in the name — the effect comes from the individual listing.
Price history
97 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.
Bubbling Hong Kong Cone sell price, 2025-09-25 to 2026-10-10: 97 observations, from 45.1 keys to 36.5 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
45.1 keys
36.9 keys
9 OCT 2025 · 08:43 UTC
42.1 keys
37.8 keys
10 NOV 2025 · 00:54 UTC
40.3 keys
36.3 keys
24 NOV 2025 · 20:38 UTC
43.8 keys
37.7 keys
22 JAN 2026 · 03:44 UTC
47.7 keys
30.4 keys
2 FEB 2026 · 09:43 UTC
32.9 keys
29.2 keys
23 FEB 2026 · 14:40 UTC
37.5 keys
29.8 keys
8 MAR 2026 · 18:42 UTC
35.1 keys
28.4 keys
2 APR 2026 · 10:30 UTC
37.8 keys
28.4 keys
19 APR 2026 · 22:30 UTC
35.5 keys
29.9 keys
10 MAY 2026 · 22:32 UTC
34.4 keys
32.4 keys
24 MAY 2026 · 22:30 UTC
34.0 keys
33.1 keys
15 JUN 2026 · 08:32 UTC
32.8 keys
27.6 keys
29 JUN 2026 · 15:12 UTC
31.4 keys
27.3 keys
12 JUL 2026 · 08:44 UTC
30.5 keys
26.5 keys
3 AUG 2026 · 04:24 UTC
35.9 keys
31.3 keys
21 AUG 2026 · 08:08 UTC
37.1 keys
32.3 keys
22 AUG 2026 · 06:08 UTC
33.3 keys
29.0 keys
24 AUG 2026 · 02:09 UTC
37.2 keys
32.3 keys
24 AUG 2026 · 12:09 UTC
37.9 keys
33.0 keys
26 AUG 2026 · 12:09 UTC
38.2 keys
33.3 keys
1 SEP 2026 · 18:08 UTC
38.4 keys
33.4 keys
3 SEP 2026 · 22:08 UTC
38.8 keys
33.8 keys
4 SEP 2026 · 20:07 UTC
37.6 keys
32.7 keys
9 SEP 2026 · 12:09 UTC
37.8 keys
32.9 keys
13 SEP 2026 · 06:08 UTC
35.2 keys
30.6 keys
13 SEP 2026 · 12:08 UTC
35.2 keys
30.6 keys
14 SEP 2026 · 02:07 UTC
35.3 keys
30.7 keys
14 SEP 2026 · 20:08 UTC
35.6 keys
30.9 keys
15 SEP 2026 · 12:08 UTC
35.5 keys
30.9 keys
17 SEP 2026 · 04:08 UTC
35.5 keys
30.9 keys
18 SEP 2026 · 14:07 UTC
35.5 keys
30.9 keys
21 SEP 2026 · 22:09 UTC
36.1 keys
31.4 keys
23 SEP 2026 · 14:10 UTC
35.7 keys
31.1 keys
25 SEP 2026 · 04:08 UTC
36.1 keys
31.4 keys
26 SEP 2026 · 04:09 UTC
36.3 keys
31.6 keys
27 SEP 2026 · 22:08 UTC
36.6 keys
31.8 keys
29 SEP 2026 · 18:08 UTC
36.2 keys
31.5 keys
9 OCT 2026 · 13:10 UTC
36.6 keys
31.8 keys
10 OCT 2026 · 17:09 UTC
36.5 keys
31.7 keys
Price history in numbers
97 readings since 25 Sep 2025
Over the last 30 days the Bubbling Hong Kong Cone's sell price ranged from 34.9 keys to 36.6 keys and is up 3.5% after 33 moves. Over a year it ranged from 29.2 keys to 47.7 keys (down 8.8%). Today's 36.5 keys sits in the middle of its range: the lowest we have recorded is 29.2 keys (5 Jul 2026) and the highest 47.7 keys (22 Jan 2026). The price has moved 96 times since we began recording it — about once every 4 days.