How CS2 Knife Trade-Ups Work
The October 2025 update introduced a new trade-up tier: Covert → Gold (Special Items). Unlike every other trade-up path that requires 10 input skins, knife trade-ups require only 5 Covert skins.- 5 Covert (Red) skins are consumed as input — not 10
- Output is a Gold-tier Special Item: a knife or pair of gloves from the same collection(s)
- The output float formula works identically — average adjusted float of inputs mapped to the output range
- StatTrak inputs produce StatTrak knife/glove outputs
- Collection weighting still applies: each input skin's collection determines the output pool probability
This is the first time in Counter-Strike history that knives and gloves are obtainable through trade-ups rather than case openings or marketplace purchases. The change has dramatically increased demand for Covert skins across all collections that contain desirable Special Items.
Which Collections Give Which Knives and Gloves
Not every collection has Special Items in its Gold tier. The output knife or glove depends entirely on which collection(s) your Covert inputs come from. Here are the key groupings:Butterfly Knife Collections
Collections tied to cases containing Butterfly Knives are among the most sought-after. Butterfly Knives command premium prices across all wear tiers, making these trade-ups potentially very lucrative — but Covert inputs from these collections are also expensive.
Karambit and M9 Bayonet Collections
Classic knife types with stable demand. Karambits in particular hold value well, and Factory New examples can reach thousands of euros. Collections that output Karambits tend to have moderately priced Covert inputs.
Glove Collections
Sport Gloves, Driver Gloves, and Specialist Gloves come from specific collections. Glove prices vary enormously by pattern — some Factory New gloves rival knife prices. Check the specific glove patterns in a collection's Gold tier before committing.
Mixed-Collection Strategy
By mixing Covert inputs from different collections, you can split your output pool across multiple knife types. For example, 3 inputs from a Butterfly collection + 2 from a Karambit collection gives you a 60/40 split between those knife pools. TradeUpX shows you the exact output probabilities for every collection mix.
Cost Analysis: What Does a Knife Trade-Up Actually Cost?
Knife trade-ups require 5 Covert skins, and Covert skins are not cheap. Here is a realistic cost breakdown:Budget Knife Trade-Ups (€150–€400 total)
Using the cheapest available Covert skins across affordable collections. Output knives from these collections tend to be lower-tier models (Gut Knife, Falchion Knife, Navaja Knife). Expected value can still be positive if the knife pool contains any mid-tier options.
Mid-Range Knife Trade-Ups (€400–€1,000 total)
Targeting collections with Butterfly Knives, Karambits, or popular gloves. Input Covert skins cost €80–€200 each. These trade-ups have the best risk-adjusted returns because both the input and output markets are liquid.
Premium Knife Trade-Ups (€1,000+ total)
Targeting Factory New outputs on premium knife types. Requires either very expensive FN Covert inputs or a carefully engineered Mixed Float approach. The payoff for a FN Butterfly or Karambit can be €2,000–€5,000+, but the variance is enormous.
Steam fees still apply: The 13% marketplace fee on a €1,500 knife means €195 goes to Valve. Factor this into every EV calculation. TradeUpX applies fees automatically when scanning Covert → Gold combinations.
Float Targeting for Factory New Knives
The float formula for knife trade-ups works identically to other tiers. The average adjusted float of your 5 Covert inputs determines the output knife's float. Since Factory New knives command massive premiums over other wears, float targeting is critical.The FN Threshold
Factory New is 0.00–0.07. To guarantee a FN knife output, your average adjusted float must produce an output float below 0.07 when mapped to the output skin's range. Most knives have a full 0.00–1.00 range, so you need inputs averaging below 0.07 adjusted float.
Sourcing Low-Float Covert Skins
This is the main challenge. FN Covert skins with float below 0.03 are rare and expensive. You have two options:
- All FN inputs: Buy 5 FN Covert skins with low floats. Expensive but straightforward.
- Mixed approach: Use 3 very low-float FN skins + 2 slightly higher-float skins from collections with capped float ranges, reducing the average.
TradeUpX's Mixed Float mode calculates the exact output float for every combination of Covert inputs, showing you precisely which mix achieves your target wear.
Best Collections for Knife Trade-Ups in 2026
The profitability of a knife trade-up depends on three factors: input Covert skin cost, output knife value, and output pool diversity. Here are the current standout collections:High-Value Knife Pools
Collections where the Gold tier contains premium knife types (Butterfly, Karambit, M9 Bayonet) alongside cheaper options. Even if you don't hit the top-tier knife, mid-tier outputs often cover your input costs. These are the safest bets for positive EV.
Underpriced Covert Input Collections
Some collections have Covert skins that are temporarily underpriced relative to their Gold-tier knife values. These market inefficiencies are where the best trade-up opportunities live. TradeUpX scans for these automatically — look for Covert → Gold results with 130%+ ROI.
Collections to Avoid
Collections where the Gold tier contains only low-demand knife types (Shadow Daggers, Navaja Knife) while the Covert inputs are expensive. Also avoid collections where the Covert skins have poor liquidity — you need to be able to source 5 copies at a reasonable price.
The knife trade-up meta shifts frequently as the market adjusts. What was profitable last month may not be profitable today. Always scan with fresh prices before buying inputs.
Knife Trade-Up Strategy: Bankroll and Variance
Knife trade-ups are the highest-variance contracts in CS2. With only 5 inputs and potentially dozens of different knives in the output pool, each individual trade-up is a significant gamble. Here is how to approach them strategically:The Variance Problem
A typical knife trade-up output pool might contain 15–30 different knife/glove skins across various patterns. The cheapest output might be worth €100 and the most expensive €3,000+. Even with positive EV, a single trade-up can easily result in a loss.
Minimum Bankroll Recommendation
For knife trade-ups, we recommend a bankroll of at least 5–10x the cost of a single contract. If your knife trade-up costs €500, have €2,500–€5,000 available so you can run multiple contracts and let the law of large numbers work in your favor.
Diversification Approach
Rather than sinking your entire budget into one expensive knife trade-up, consider spreading across multiple cheaper collections. Three €200 contracts from different collections give you better variance reduction than one €600 contract from a single collection.
Use TradeUpX to compare Covert → Gold results across all collections simultaneously. Sort by ROI to find the contracts where the math is most in your favor, then decide how many you can afford to run.