Community price on backpack.tf: 45.0 keys, last changed 2025-08-03 (1.2y ago). The live quote above, 34.0 keys, is 24% lower and last moved 12d 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: $79.01 — the lowest of one listing for the Mountain Halo effect when we looked on 2026-10-06 01:40 UTC (7d 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 34 keys 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 El Mostacho”, with no effect in the name — the effect comes from the individual listing.
Price history
27 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.
Mountain Halo El Mostacho sell price, 2025-09-25 to 2026-10-06: 27 observations, from 45.9 keys to 32.3 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
45.9 keys
37.5 keys
30 SEP 2025 · 22:24 UTC
46.8 keys
38.3 keys
9 OCT 2025 · 09:57 UTC
44.8 keys
40.3 keys
19 OCT 2025 · 21:51 UTC
42.6 keys
38.3 keys
25 OCT 2025 · 18:10 UTC
40.5 keys
36.5 keys
10 NOV 2025 · 02:04 UTC
41.6 keys
37.4 keys
22 JUN 2026 · 17:13 UTC
26.9 keys
23.4 keys
29 JUN 2026 · 01:14 UTC
29.4 keys
25.6 keys
5 JUL 2026 · 23:12 UTC
27.2 keys
23.7 keys
12 JUL 2026 · 22:44 UTC
29.0 keys
25.2 keys
19 JUL 2026 · 06:43 UTC
31.3 keys
27.2 keys
29 JUL 2026 · 02:45 UTC
31.7 keys
27.5 keys
3 AUG 2026 · 19:11 UTC
30.2 keys
26.2 keys
11 AUG 2026 · 13:12 UTC
29.7 keys
25.9 keys
17 AUG 2026 · 21:11 UTC
31.5 keys
27.4 keys
22 AUG 2026 · 08:09 UTC
31.9 keys
27.7 keys
29 AUG 2026 · 10:09 UTC
31.9 keys
27.7 keys
30 AUG 2026 · 02:10 UTC
30.6 keys
26.6 keys
31 AUG 2026 · 12:09 UTC
31.6 keys
27.5 keys
3 SEP 2026 · 10:09 UTC
33.7 keys
29.3 keys
11 SEP 2026 · 20:10 UTC
30.8 keys
26.8 keys
14 SEP 2026 · 14:08 UTC
25.1 keys
21.8 keys
15 SEP 2026 · 10:08 UTC
25.4 keys
22.1 keys
15 SEP 2026 · 22:08 UTC
25.7 keys
22.3 keys
16 SEP 2026 · 10:08 UTC
25.9 keys
22.5 keys
30 SEP 2026 · 20:09 UTC
34.0 keys
29.6 keys
6 OCT 2026 · 03:09 UTC
32.3 keys
28.1 keys
Price history in numbers
27 readings since 25 Sep 2025
Over the last 30 days the Mountain Halo El Mostacho's sell price ranged from 25.1 keys to 34.0 keys and is up 28.8% after 5 moves. Over a year it ranged from 25.1 keys to 42.6 keys (down 24.0%). Today's 32.3 keys sits in the middle of its range: the lowest we have recorded is 25.1 keys (14 Sep 2026) and the highest 46.8 keys (30 Sep 2025). The price has moved 26 times since we began recording it — about once every 14 days.