Exhibit 99.26 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-D KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 7/15/03 Blended Coupon 5.8390% Excess Protection Level 3 Month Average 5.08% February, 2001 7.57% January, 2001 7.10% December, 2000 0.55% Cash Yield19.48% Investor Charge Offs 4.62% Base Rate 7.29% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate13.44% Total Principal Balance$57,174,868,500.05 Investor Participation Amount$559,000,000.00 Seller Participation Amount$4,724,177,938.56