Community price on backpack.tf: 29.0–37.0 keys, last changed 2024-07-03 (2.3y ago). The live quote above, 23.8 keys, is 18% lower and last moved 11d 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: $97.75 — the lowest of 3 listings for the Jellyfish Jam effect when we looked on 2026-10-13 01:38 UTC (6h 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 23 keys, 47 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 Brothers in Blues”, with no effect in the name — the effect comes from the individual listing.
Price history
70 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.
Jellyfish Jam Brothers in Blues sell price, 2025-09-25 to 2026-10-12: 70 observations, from 39.0 keys to 25.6 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
39.0 keys
25.1 keys
9 OCT 2025 · 10:28 UTC
36.3 keys
25.6 keys
25 OCT 2025 · 18:38 UTC
32.8 keys
23.2 keys
10 NOV 2025 · 02:32 UTC
35.7 keys
24.5 keys
23 NOV 2025 · 18:59 UTC
46.7 keys
42.4 keys
8 DEC 2025 · 00:57 UTC
50.5 keys
20.4 keys
22 DEC 2025 · 01:15 UTC
47.6 keys
35.7 keys
29 DEC 2025 · 00:59 UTC
46.4 keys
36.2 keys
11 JAN 2026 · 23:39 UTC
40.0 keys
32.3 keys
29 JAN 2026 · 01:46 UTC
42.8 keys
35.5 keys
8 FEB 2026 · 22:45 UTC
41.9 keys
35.6 keys
23 FEB 2026 · 18:43 UTC
37.6 keys
29.5 keys
8 MAR 2026 · 22:43 UTC
36.0 keys
21.4 keys
1 APR 2026 · 12:31 UTC
39.1 keys
27.5 keys
19 APR 2026 · 12:31 UTC
39.2 keys
31.2 keys
3 MAY 2026 · 22:32 UTC
39.3 keys
29.9 keys
10 MAY 2026 · 14:33 UTC
38.6 keys
32.3 keys
24 MAY 2026 · 04:32 UTC
38.2 keys
32.4 keys
8 JUN 2026 · 00:32 UTC
38.2 keys
33.1 keys
22 JUN 2026 · 12:12 UTC
39.1 keys
29.6 keys
29 JUN 2026 · 07:13 UTC
38.9 keys
33.8 keys
12 JUL 2026 · 22:44 UTC
35.7 keys
32.4 keys
29 JUL 2026 · 00:45 UTC
30.4 keys
26.5 keys
11 AUG 2026 · 13:12 UTC
35.0 keys
30.5 keys
21 AUG 2026 · 06:08 UTC
34.5 keys
29.4 keys
22 AUG 2026 · 10:09 UTC
33.9 keys
29.4 keys
25 AUG 2026 · 08:09 UTC
34.2 keys
29.5 keys
29 AUG 2026 · 20:10 UTC
34.5 keys
30.0 keys
30 AUG 2026 · 22:10 UTC
35.4 keys
30.8 keys
31 AUG 2026 · 12:09 UTC
35.5 keys
30.8 keys
1 SEP 2026 · 04:10 UTC
35.7 keys
30.4 keys
15 SEP 2026 · 08:10 UTC
35.4 keys
30.3 keys
19 SEP 2026 · 00:07 UTC
18.5 keys
16.1 keys
19 SEP 2026 · 12:09 UTC
18.5 keys
16.1 keys
20 SEP 2026 · 20:10 UTC
18.5 keys
16.1 keys
25 SEP 2026 · 18:09 UTC
23.4 keys
20.4 keys
27 SEP 2026 · 12:08 UTC
35.4 keys
22.5 keys
29 SEP 2026 · 08:09 UTC
35.0 keys
22.2 keys
1 OCT 2026 · 20:08 UTC
23.8 keys
20.7 keys
12 OCT 2026 · 03:10 UTC
25.6 keys
22.3 keys
Price history in numbers
70 readings since 25 Sep 2025
Over the last 30 days the Jellyfish Jam Brothers in Blues's sell price ranged from 18.4 keys to 35.5 keys and is down 27.7% after 14 moves. Over a year it ranged from 18.4 keys to 51.3 keys (down 25.8%). Today's 25.6 keys sits in the lower third of its range: the lowest we have recorded is 18.4 keys (30 Sep 2026) and the highest 51.3 keys (15 Dec 2025). The price has moved 68 times since we began recording it — about once every 6 days.