Which factor is NOT typically involved in assessing concentration risk?

In assessing concentration risk, the focus is on how exposure to a single asset, group of assets, or market segment can impact a portfolio's overall risk profile. The assessment typically involves evaluating factors such as the overall diversification of a portfolio, as it helps determine how concentrated the portfolio is in particular sectors or asset classes. A well-diversified portfolio generally poses a lower concentration risk. Additionally, the average credit rating of the assets involved is crucial because it provides insights into the credit quality and potential default risk associated with concentrated positions. The potential impact on earnings or capital from exposures is also a key consideration, as it highlights how losses from concentrated positions could affect the financial health of an entity.

However, while the historical performance of the asset class may provide context regarding past returns and volatility, it does not directly contribute to the assessment of concentration risk. Historical performance is more relevant to understanding potential future behavior but does not measure the current level of concentration within a portfolio or the inherent risks associated with that concentration. Thus, this factor is not typically involved in assessing concentration risk.