Consider the following scenario:  Coupon rate: 6%  Current balance: $100 million  Inverse current balance: $20 million  Companion price: $90  Inverse price: $110. What is the inverse floater's duration?
Using the formula, the inverse floater's duration is calculated as: Inverse duration = 18.7 × 100,000,000 / (20,000,000 × 90 / 110) ≈ 9.3 years.