Exhibit 99.26 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-M KEY PERFORMANCE FACTORS June 30, 2000 Expected B Maturity 10/15/02 Blended Coupon 6.4601% Excess Protection Level 3 Month Average 5.59% June, 2000 5.40% May, 2000 5.96% April, 2000 5.39% Cash Yield 18.81% Investor Charge Offs 4.56% Base Rate 8.85% Over 30 Day Delinquency 4.60% Seller's Interest 12.05% Total Payment Rate 14.03% Total Principal Balance $54,839,173,315.51 Investor Participation Amount $750,000,000.00 Seller Participation Amount $6,607,972,797.02