UMP-45 | Mudder (Factory New) — The misunderstood middle child of the SMG family, the UMP45's small magazine is the only drawback to an otherwise versatile close-quarters automatic. It has been painted in a marbleized pattern.
| Wear | Normal | Souvenir |
|---|---|---|
| Factory New FN · 0.00–0.07 | $0.490 | $1.15 |
| Minimal Wear MW · 0.07–0.15 | $0.030 | $0.050 |
| Field-Tested FT · 0.15–0.38 | $0.020 | $0.020 |
| Well-Worn WW · 0.38–0.45 | $0.030 | $0.060 |
| Battle-Scarred BS · 0.45–1.00 | $0.020 | $0.030 |
| Category | smg |
| Collection | The 2018 Inferno Collection |
| Case | London 2018 Inferno Souvenir Package |
| Buy orders | 5274 |
| Sell listings | 226 |
Right now it goes for $0.490 to $0.770 across 7 marketplaces — a 57.1% spread. Liquidity is moderate: 5 sales a day — selling at market price takes days, not hours.
We track 5 wear levels of this skin. The cheapest is FT at $0.020, the priciest is FN at $0.490 — a 24.5x difference for the very same artwork, the wear is all that changes. Over the past 30 days the price stayed between $0.500 and $0.890, and it is now 20% lower than a month ago. The all-time high is $4.04, the low is $0.500. Float for this skin runs from 0.06 to 0.8 (the range of the whole skin, not of a single wear): the lower the number, the cleaner the finish, and copies at the edge of the range are valued separately.
There are more buy orders than listings: 5274 against 226. Demand is ahead of supply, so selling at market price usually needs no discount. The skin comes in all five wears, from Factory New to Battle-Scarred, so the choice is always between a clean finish and a lower price.
UMP-45 | Mudder (Factory New) is listed on 6 marketplaces. The most you keep is on skinport: $0.710 minus a 8.0% fee leaves $0.650 net. The least you keep is on lis: $0.490 minus a ~9.7% fee leaves $0.440. The $0.210 gap comes from both different listing prices and different fees; a large gap usually means the listings differ in wear or condition, so check the item itself before selling.
Fees are the marketplaces' standard seller rates; Steam's 15% is charged on the seller's amount, so the net is the price divided by 1.15. Volume discounts, promo codes and regional specifics are not included, and Steam proceeds stay in the Steam wallet.
A rate marked with a tilde (~) is our own estimate, not a published figure: it is derived by comparing the marketplace's own buy and sell prices. The real cut varies from item to item and is usually worse on cheap listings.
| Marketplace | Price | Listings | Updated | Fee | You get | Cash out | |
|---|---|---|---|---|---|---|---|
whitemarket best price |
$0.490 | — | 2026-09-18 16:31 | 5.0% | $0.470 | to card | To market ↗ |
lis |
$0.490 | 48 | 2026-09-18 16:31 | ~9.7% | $0.440 | to card | To market ↗ |
waxpeer |
$0.492 | — | 2026-09-18 16:31 | 6.0% | $0.460 | to card | To market ↗ |
marketcsgo |
$0.521 | — | 2026-09-18 16:31 | 5.0% | $0.490 | to card | To market ↗ |
skinport |
$0.710 | 1 | 2026-09-18 16:31 | 8.0% | $0.650 | to card | To market ↗ |
steam |
$0.730 | 230 | 2026-09-18 15:27 | 15.0% | $0.630 | Steam wallet only | To market ↗ |
lootfarm |
$0.770 | — | 2026-09-18 16:31 | — | — | fee not on file | To market ↗ |