Case Overview
The First Stroke pool combines skins with different rarity classifications and market characteristics. Higher-probability items account for most potential outcomes, while progressively rarer skins occupy a smaller share of the distribution. This structure means that the most visible or valuable items may contribute significantly to theoretical expected value without representing the typical result. The quality of lower and middle tiers is therefore important when assessing the overall pool. Skins with stable transaction volume and consistent demand can support a more resilient distribution, whereas thinly traded items may introduce additional uncertainty between quoted market value and realizable value.
Value and Risk Factors
Expected return reflects the sum of each possible item's market value multiplied by its probability. Because the distribution is not uniform, realized results can deviate substantially from that average. Variance is higher when a small number of scarce items account for a disproportionate share of aggregate pool value. Median outcome, rarity concentration, and the value of high-probability items are consequently important analytical indicators. Market depth, condition, supply changes, trading spreads, and fluctuations in demand can also alter effective returns over time. A pool with stronger value across common and mid-tier outcomes may show lower dispersion, while a top-heavy composition creates greater sensitivity to low-probability results.

