© 2026 Arizent. All rights reserved.

RMBS

Lewtan/Thetica Partnership to Offer MBS/ABS Valuation Platform

Published 2 Min Read

Lewtan has partnered with Thetica Systems to offer a pre-integrated bond valuation platform to MBS and ABS investors.

Thetica Systems’ ABS Analytics Trader Tools comprises a suite of software that has Lewtan’s ABSNet®, ABSNet Loan and ABSNet Loan HomeVal® products with credit model assumptions for automating bond valuation platforms using a front-end solution that can be customized.

Lewtan’s ABSNet Loan product suite allows users to analyze non-agency MBS at the loan, pool and deal level as well as the current bond data related to those securities.

Lewtan’s ABSNet Loan HomeVal product offers transparency into negative equity amounts and current LTVs at the loan level. This enables the user to make insightful assumptions on whether  individual borrowers are likely to default on their loan. ABSNet Loan HomeVal uses both automated valuation models and over 150,000 home price indices at the neighborhood level to arrive at the best estimation of each home’s value.

“We are extremely excited to be integrated with one of the industry’s leading technology providers,” said Ned Myers, senior vice president and general manager at Lewtan. “The Lewtan/Thetica combined offering provides a fully-integrated and scalable solution that enables powerful bond analysis using the most accurate current combined LTVs available today.”

The platform developed by Thetica Systems, integrating Lewtan’s ABSNet and ABSNet Loan products, offers analytics that can run thousands of bond scenarios simultaneously, including different pricing, economic and regional metrics. The tool allows for the most precise RMBS forecasting and valuation by integrating Lewtan’s data with credit and default predictions of the user’s choice.

“The partnership with Lewtan makes an exciting addition to Thetica’s suite of vendor products,” adds Jack Broad, president at Thetica. “Not only for Lewtan’s loan-level data, but for its thorough capability to generate ongoing updated property valuations, giving a much closer look at realistic current LTVs in relation to securitized RMBS deals.  In today’s real estate market, correctly assessing property values is key to understanding the risks involved for investors.”

For reprint and licensing requests for this article, click here.

More From Asset Securitization Report

Lewtan’s ABSNet Offers Compliance Solution for BofE Transparency

Lewtan is offering Bank of England (BofE)-compliant cash flow models for the U.K. RMBS market.  ABSNet, Lewtan’s fully integrated web portal, which incorporates comprehensive asset-backed securities performance data and analytics, is the foundation for these compliant models. In November 2010, the BofE issued a mandate requiring increased transparency for ABS and covered bonds in order for these […]

Equifax/ Lewtan Link Provides Better MBS Transparency

Equifax will be linking its ABS Credit Risk Insight Direct to Lewtan‘s ABSNet Loan comprehensive database of residential deal and mortgage performance data. The link will provide investors with an expanded dimension of transparency into MBS analysis, allowing them to better predict loan delinquencies, defaults and prepayments and make more informed trading decisions. ABS Credit Risk Insight […]

Comparison of Lewtan’s ABSNet Loan HomeVal with FHFA and Case-Shiller 20 Methods

Lewtan’s ABSNet Loan HomeVal property valuations provide quite stark valuation differences on underlying properties of RMBS transactions relative to Federal Housing Finance Agency (FHFA), Case-Shiller 20 (CS20), and combinations of the two. FHFA and CS20 generally tend to overvalue properties thereby resulting in undervaluation of RMBS deal weighted-average loan-to-value ratios (WALTVs). As the government moratorium […]

FinCap Financial Services/MBSData Form Partnership

FinCap Financial Services (FFS) has formed a strategic joint partnership with MBSData. With the partnership, MBSData data will be available under the FinCap Financial Services platform Fin*Fusion. The Fin*Fusion suite of products — Fin*Pricer, Fin*MBSData, Fin*Loan, and Fin*Project — are an integrated group of analytics that offer tools for pricing, collateral analysis, portfoliosurveillance, and asset valuation. The analytical platform […]

ABS Industry Makes Sense OF Loan Level Data

Investment firms are also increasingly unwilling to trust the work of others. This is coupled with the need for more granular information down to the borrower level. These have driven market participants to build their own models using more detailed data from various sources and are closely tied to increased transparency in transactions. “Investors want […]