AS
ARR Studio

Automated rate resets with accurate SOFR methodology

SOFR compounding, lookback conventions, and spread adjustments. Calculated accurately, delivered via API, and audit-ready behind every output.

Schedule a Demo Information Sheet
The Challenge

LIBOR to SOFR: Complexity that spreadsheets can't handle.

The transition from LIBOR to SOFR created a calculation complexity that most lending platforms weren't designed to handle. Banks are managing rate transitions, compounding methodologies, and lookback conventions in spreadsheets, introducing operational risk, audit exposure, and manual bottlenecks into their most critical financial calculations.

Every day a rate calculation lives in a spreadsheet is a day of exposure. Audit findings increase. Manual review cycles slow down servicing. And the moment someone changes a formula, you've lost the audit trail.

RATE INPUTS SOFR Benchmarks Spread Adj. Fallback Rates Contract Terms AS ARR STUDIO SOFR calculation engine Compounding Lookback Adjustments Audit Log Calculated Rate Full Trace Servicing Feed Compliance Automated · Auditable · Accurate
See It In Action

One interface for rate ingestion, calculation, and audit

ARR Studio calculator interface showing direct New York Fed rate retrieval, with navigation for calculations, rate uploads, downloads, existing rates, rate averages, holidays, and built-in API documentation.
Direct Fed Integration
Pull SOFR benchmarks directly from the New York Fed. No manual downloads, no stale data, no copy-paste into spreadsheets.
Full Rate Lifecycle
Upload, download, calculate, and manage rate averages in one place. Holidays and business day conventions are built in.
API-First Architecture
Built-in API documentation and rich, self-describing endpoints let calculated rates flow directly into servicing and billing systems.
Operational Impact

Your rate calculations deserve an engine, not a spreadsheet.

Banks calculating interest on billions in outstanding balances need an engine they can audit, with a complete trail behind every output.

6+
SOFR conventions handled natively
Daily Simple, Compounded In Arrears, Term SOFR, lookback, lockout, observation shift
Zero
Spreadsheets in the rate calculation chain
Every formula governed, every output traceable
Weeks
To production · zero core modifications
Reads from existing data sources, writes rates back via API
100%
Audit-ready from day one
Immutable log: input rate, methodology, convention, and output
Portfolio-Level LIBOR Transition
Apply the correct SOFR methodology across your book, with fallback logic and spread adjustments built in. No deal-by-deal rebuilds.
API-Direct Rate Delivery
Calculated rates flow into servicing and billing via documented REST endpoints. One configuration update when methodology guidance changes.
Architect-Level Depth
Designed by engineers who spent over a decade inside core lending platforms and understand how rate calculations flow through servicing systems.

Every calculation is logged, traceable, and audit-ready from day one.

See what automated rate calculations look like.

Walk through a live configuration (from SOFR benchmark ingestion through calculated rate output) and see how your team's rate process changes when spreadsheets leave the picture.

Schedule a Conversation Explore Other Studios