A CS2 operation is a season of extra content. Valve sells an operation pass, players complete missions for stars, and stars are spent on rewards from a list that only exists during that operation. Rewards have included weapon cases, skin collections, agents, stickers, patches and graffiti.
Operations have run at irregular gaps, sometimes years apart, and each one has its own name and reward list. The Armory update in 2024 worked in a similar way with credits instead of stars, and some traders treat it as an operation in all but name.
Why do operation items go up in price?
Operation rewards can only be earned while the operation runs. When it ends, the total supply is fixed, and every item that gets opened, applied or used leaves the market. Operation cases and collections often rise over the following years for that reason, though the pace depends on how many passes were sold and how popular the items are.
Some operation collections have also been reachable through trade-up contracts, which means their skins do not always stay rare in every wear tier. Check whether a skin can be produced by trade-up before assuming its supply is fixed.
Is an operation pass worth buying?
From a trading view, the pass is worth it only if the rewards you can earn sell for more than the pass costs, after fees. Some operations have paid for themselves for active players; others have not. The pass also grants access to content and cosmetics that have no resale value, so the answer depends on whether you play enough to finish the missions.
If you are buying operation items rather than earning them, treat them like any discontinued case or collection: supply is fixed, demand is uncertain, and prices can stay flat for a long time before moving.