Exhibit 99.26 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-E KEY PERFORMANCE FACTORS April 30, 2001 Expected B Maturity 4/15/08 Blended Coupon 5.0460% Excess Protection Level 3 Month Average 7.57% April, 2001 7.75% March, 2001 7.63% February, 2001 7.35% Cash Yield19.61% Investor Charge Offs 4.98% Base Rate 6.89% Over 30 Day Delinquency 4.89% Seller's Interest 9.33% Total Payment Rate13.70% Total Principal Balance$58,171,313,434.78 Investor Participation Amount$882,400,000.00 Seller Participation Amount$5,425,622,873.29