Which function is used to display historical spread analysis?

The function used to display historical spread analysis is HSA, which stands for Historical Spread Analysis. This tool allows users to visualize the historical behavior and trends of spreads between different financial instruments, such as bonds, equities, or other asset classes. By using HSA, analysts can explore how spreads have varied over time, assess the impact of market events, and identify patterns that may influence future trading decisions.

Other functions listed may serve different purposes. For example, YCRV typically relates to yield curve analysis, RVS is often associated with relative value screens or analysis, and CBS is used for credit and bond screening. Each of these tools has its specific focus, while HSA is dedicated to the in-depth historical analysis of spreads, making it the correct choice for this particular question.