See every possible output.
Collection-weighted odds make the full outcome distribution visible before you buy.
Explore odds →SYS 01 CS2 TRADE-UP ANALYSIS
Turn market noise
into an edge.
Scan current contract paths. Inspect every outcome. Compare real cost against fee-adjusted expected value before committing ten skins.
Cached market estimates / No account required
MODEL / CONTRACT 078
ILLUSTRATIVE
EXPECTED ROI
+18.4%
A
Input cost€ 18.42
Expected value€ 21.81
Output rangeFT → MW
Open current opportunities ↗
34,790 PRICE POINTS✦
1,200+ SKIN GUIDES✦
FLOAT-AWARE OUTPUTS✦
NO ACCOUNT REQUIRED
ANALYSIS MODULES / 03
The whole contract,
not just the best case.
TradeUpX exposes the assumptions behind every candidate, so risk and return stay on the same screen.
Predict the exact float.
Normalize input wear against every output skin's individual float range.
Check float →Compare net expected value.
Fee-adjusted ROI puts unlike contracts on one consistent decision scale.
Understand EV →CONTRACT PATHS / 05
Choose your
decision lane.
Start with the rarity tier that matches your budget, then compare the complete output pool.
HOW IT WORKS / 03 STEPS
From ten inputs
to one clear decision.
A useful trade-up model needs more than a headline ROI. It needs transparent prices, exact float math and the probability of every result.
Read the complete methodology →-
01 / INPUT
Define the contract.
Choose ten skins, their collections, purchase prices and exact floats.
-
02 / MODEL
Calculate every result.
Map collection odds, output wear ranges and the configured marketplace fee.
-
03 / DECIDE
Compare risk and return.
Review expected value, ROI, output range and downside before buying.
OUTPUT FLOAT FORMULA
Learn float math ↗
avgInputFloat × (maxFloat − minFloat) + minFloat
TOOL INDEX / 06
A focused workspace
for every contract.
Scan the market, test your own idea or learn the mechanics without leaving the TradeUpX system.
SCN / 01
Trade-Up Scanner
Rank current contract candidates by expected value and ROI.
Open tool ↗ CAL / 02EV Calculator
Build a contract manually and inspect its exact economics.
Open tool ↗ SIM / 03Output Simulator
Preview every result, drop chance and output float.
Open tool ↗ INV / 04Inventory Builder
Find ideas that use skins you already own.
Open tool ↗ COL / 05Collection Browser
Explore the skins and rarity ladders inside every collection.
Browse data ↗ KIT / 06All Tools
Float, wear, fee and probability references in one place.
View index ↗34,790cached price points
1,200+indexable skin guides
EV + FLOATone contract model
FREEno account required
REFERENCE / FAQ
The essential
trade-up questions.
01What is a CS2 trade-up contract?
A trade-up contract combines 10 skins of the same rarity into one skin of the next-higher rarity. The possible outputs come from the collections represented by your inputs.
02Are CS2 trade-ups profitable?
Some candidates have positive expected value in a given snapshot. Results still depend on prices, liquidity, floats and fees, and positive EV never guarantees that one individual contract will profit.
03How is the output float calculated?
The average float of your inputs is mapped onto each output skin's individual wear range. This means the same inputs can produce different output floats across different skins.
04Does TradeUpX include Steam fees?
Yes. ROI and net output value use the fee estimate displayed in the interface. Always verify current fees and listing prices before buying inputs.
05Is TradeUpX free?
Yes. The scanner, calculator, simulator and inventory workflow can be used without an account or login.
06Can I use skins I already own?
Yes. Import your CS2 inventory and TradeUpX can surface calculated ideas that use skins already available to you.
READY / MARKET SYSTEMS ONLINE