An active portfolio manager seeking to purchase single-name CDS protection observes a 1.75% 10-year market credit spread for a private investment-grade issuer. The effective spread duration is 8.75 and CDS basis is close to zero.

Once the manager purchases CDS protection, the issuer’s CDS spread immediately falls to 1.60%. What is the investor’s approximate mark-to-market gain or loss for a contract notional of €10,000,000?

A. The manager realizes an approximate loss of €131,250.

B. The manager realizes an approximate gain of €131,250.

C. The manager realizes an approximate gain of €525,000.