EXHIBIT 99.1: DERIVED INFORMATION LEHMAN BROTHERS PROVIDENT BANK [LOGO OMITTED] $515,000,000 Certificates (approximate) Provident Bank Home Equity Loan Trust 1999-1 $200,000,000 Certificates Offered Hereby The Provident Bank (Seller & Servicer) This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by, and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). Certificates Offered Group I - To 10% Call Est. Prin. Expected Stated Expected Approx. Est. Pmt Window Final Final Ratings Class Size BMark WAL (yrs) (mos) Maturity Maturity (Mdy's/S&P) A-1 $200,000,000 1 mo. LI 3.49 1 - 93 12/25/06 3/25/29 Aaa/AAA Pricing Speed Group I: 115% PPC on the Fixed HELs (100% PPC assumes that prepayments start at 4% CPR in month one, increase by approximately 1.455% each month to 20% CPR in month twelve, and remain at 20% CPR thereafter) Summary of Terms Dated Date/Settlement Date: March 31,1999 Delay Days: 0 days Day Count: Act/360 Distribution Date: 25th of each month, or the next succeeding Business Date (First Payment Date: April 26,1999) Interest Accrual: 1mo Libor + []% subject to a 13% cap. If the Cleanup Call is not exercised, the margin on the Class A-1 Certificates will step up to twice the initial margin. Cleanup Call: The deal is eligible for call when the combined outstanding Principal Balance of Group I and Group II reaches 10% of their combined initial Principal Balance as of the Closing Date. Principal Allocation: Principal is paid to the Class A-1 Certificates from principal collected on the Group I Mortgage Loans. Credit Enhancement: MBIA will unconditionally guarantee timely payments of interest and ultimate payment of principal on the Certificates. Clearing: DTC, Euroclear or Cedel This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). Group I Collateral Summary Collateral statistics for the Initial Group I Mortgage Loans are listed below as of the Cut-Off Date. Total Number of Loans 1,915 Total Outstanding Loan Balance $130,004,959.97 Balloon (% of Total) 37.96% Average Loan Principal Balance $67,887.71 $10,493.59 - $249,600.00 WA Coupon 10.60% 6.50% - 16.40% WA Original Term (mo.) 262 60 - 360 WA Remaining Term (mo.) 261 53 - 360 WA CLTV 76.88% 14.08% - 90.00% WA Second Mortgage Ratio 32.32% (for 2nd liens only) Lien Position (first/second) 96.92% / 3.08% Property Type Single Family 88.50% Two- to Four-Family 5.61% Condominium 3.18% Planned Unit Development (PUD) 2.71% Occupancy Status Owner Occupied 89.79% Non-Owner Occupied 10.21% Geographic Distribution other states account individually for less than OH 8.06% 5% of pool balance MI 7.26% FL 7.19% NC 6.84% TN 5.61% GA 5.30% First Pay Date 1998 22.57% 1999 77.43% Delinquency Current 99.75% 30 - 59 Days Delinquent 0.25% This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). Group I Collateral Summary Collateral statistics for the Initial Group I Mortgage Loans are listed below as of the Cut-Off Date. Credit Class A 28.90% C 8.23% A- 22.49% D 0.36% B+ 10.51% M 2.40% B 16.04% Q 11.08% Prepayment Penalty Yes 58.62% No 41.38% This information does not constitute either an offer to sell or a solicitation of an offer to buy any of the securities referred to herein. Offers to sell and solicitations of offers to buy the securities are made only by , and this information must be read in conjunction with, the final Prospectus Supplement and the related Prospectus or, if not registered under the securities laws, the final Offering Memorandum (the "Offering Document"). Information contained herein does not purport to be complete and is subject to the same qualifications and assumptions, and should be considered by investors only in the light of the same warnings, lack of assurances and representations and other precautionary matters, as disclosed in the Offering Document. Information regarding the underlying assets has been provided by the issuer of the securities or an affiliate thereof and has not been independently verified by Lehman Brothers Inc. or any affiliate. The analyses contained herein have been prepared on the basis of certain assumptions (including, in certain cases, assumptions specified by the recipient hereof) regarding payments, interest rates, losses and other matters, including, but not limited to, the assumptions described in the Offering Document. Lehman Brothers Inc., and any of its affiliates, make no representation or warranty as to the actual rate or timing of payments on any of the underlying assets or the payments or yield on the securities. This information supersedes any prior versions hereof and will be deemed to be superseded by any subsequent versions (including, with respect to any description of the securities or underlying assets, the information contained in the Offering Document). EXHIBIT 23: CONSENT OF INDEPENDENT ACCOUNTANTS We consent to the incorporation by reference in the Prospectus Supplement of The Provident Bank relating to Provident Bank Home Equity Loan Trust 1999-1, of our report dated February 3, 1998, on our audits of the consolidated financial statements of MBIA Insurance Corporation and Subsidiaries as of December 31, 1997 and 1996 and for each of the three years in the period ended December 31, 1997. We also consent to the reference to our firm under the caption "Experts". \s\ PricewaterhouseCoopers LLP -------------------------- PricewaterhouseCoopers LLP New York, New York March 25, 1999