Community price on backpack.tf: 11.0 keys, last changed 2026-08-08 (28d ago). The live quote above, 11.0 keys, is the same and last moved 2d 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: $38.27 — the lowest of one listing for the Steaming effect when we looked on 2026-09-01 01:36 UTC (5d 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 11 keys, 2.77 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 Whoopee Cap”, with no effect in the name — the effect comes from the individual listing.
Price history
42 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.
Steaming Whoopee Cap sell price, 2025-09-25 to 2026-09-03: 42 observations, from 16.4 keys to 11.0 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
16.4 keys
10.9 keys
30 SEP 2025 · 20:23 UTC
16.4 keys
11.7 keys
9 OCT 2025 · 08:06 UTC
15.7 keys
12.3 keys
19 OCT 2025 · 19:52 UTC
14.9 keys
11.7 keys
25 OCT 2025 · 16:11 UTC
14.2 keys
11.2 keys
10 NOV 2025 · 00:12 UTC
15.0 keys
11.8 keys
19 NOV 2025 · 12:32 UTC
10.9 keys
8.90 keys
24 NOV 2025 · 00:34 UTC
11.6 keys
9.53 keys
2 DEC 2025 · 10:46 UTC
9.53 keys
8.22 keys
19 FEB 2026 · 16:40 UTC
10.0 keys
9.10 keys
15 MAR 2026 · 22:06 UTC
10.2 keys
9.07 keys
26 MAR 2026 · 16:05 UTC
10.9 keys
9.86 keys
3 APR 2026 · 00:30 UTC
11.1 keys
10.3 keys
17 APR 2026 · 12:29 UTC
11.2 keys
10.2 keys
29 APR 2026 · 08:29 UTC
10.6 keys
9.70 keys
3 MAY 2026 · 20:31 UTC
11.0 keys
10.1 keys
28 MAY 2026 · 08:29 UTC
11.9 keys
10.5 keys
31 MAY 2026 · 08:29 UTC
12.0 keys
10.7 keys
5 JUN 2026 · 16:29 UTC
11.9 keys
9.11 keys
15 JUN 2026 · 16:10 UTC
11.8 keys
10.4 keys
24 JUN 2026 · 07:12 UTC
9.15 keys
7.96 keys
4 JUL 2026 · 13:12 UTC
8.65 keys
7.52 keys
10 JUL 2026 · 18:45 UTC
8.70 keys
7.57 keys
21 JUL 2026 · 10:43 UTC
9.05 keys
7.88 keys
29 JUL 2026 · 00:45 UTC
9.98 keys
8.62 keys
3 AUG 2026 · 00:24 UTC
10.8 keys
9.41 keys
10 AUG 2026 · 01:11 UTC
11.8 keys
10.2 keys
21 AUG 2026 · 06:08 UTC
13.4 keys
9.42 keys
23 AUG 2026 · 10:08 UTC
10.8 keys
9.42 keys
24 AUG 2026 · 02:09 UTC
11.1 keys
9.68 keys
25 AUG 2026 · 16:09 UTC
11.1 keys
9.67 keys
26 AUG 2026 · 16:08 UTC
11.1 keys
9.68 keys
28 AUG 2026 · 04:08 UTC
11.1 keys
9.70 keys
29 AUG 2026 · 02:08 UTC
11.2 keys
9.71 keys
29 AUG 2026 · 20:09 UTC
11.2 keys
9.75 keys
30 AUG 2026 · 08:08 UTC
11.3 keys
9.84 keys
31 AUG 2026 · 00:08 UTC
11.3 keys
9.82 keys
31 AUG 2026 · 18:09 UTC
11.2 keys
9.78 keys
1 SEP 2026 · 18:08 UTC
11.2 keys
9.74 keys
3 SEP 2026 · 08:09 UTC
11.0 keys
9.62 keys
Price history in numbers
42 readings since 25 Sep 2025
Over the last 30 days the Steaming Whoopee Cap's sell price ranged from 10.8 keys to 13.4 keys and is down 6.7% after 13 moves. Over a year it ranged from 8.65 keys to 16.4 keys (down 32.6%). Today's 11.0 keys sits in the lower third of its range: the lowest we have recorded is 8.65 keys (4 Jul 2026) and the highest 16.4 keys (30 Sep 2025). The price has moved 40 times since we began recording it — about once every 9 days.