Explanation

Note: This question appears to be incomplete in the provided text. The table for Q-87 only shows the headers but not the actual return data for stocks X and Y. Therefore, I cannot calculate the Spearman rank correlation coefficient.

About Spearman Rank Correlation:

• Spearman's ρ measures the monotonic relationship between two variables
• It's calculated by ranking the data and then computing the Pearson correlation on the ranks
• Formula: ρ = 1 - [6∑d²] / [n(n²-1)], where d is the difference in ranks
• Values range from -1 (perfect negative correlation) to +1 (perfect positive correlation)

To answer this question properly, we would need:

• The complete return data for stocks X and Y for all five years
• Then we would rank both sets of returns
• Calculate the differences in ranks (d)
• Compute ρ using the formula above

Since the data is missing, this question cannot be answered with the information provided.