TradeMech: A Method to Multilaterally Net Trades Without Altering Counterparty Exposure

Fuente: arXiv
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Main Authors: Aronoff, Daniel, Townsend, Robert M., Virza, Madars
Format: Preprint
Published: 2026
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author Aronoff, Daniel
Townsend, Robert M.
Virza, Madars
author_facet Aronoff, Daniel
Townsend, Robert M.
Virza, Madars
contents Financial markets such as bond, derivatives, and repo markets form networks of interdependent obligations. Existing multilateral netting methods typically trade off the extent of netting against preservation of counterparty exposure: central clearing reallocates exposure to a central counterparty, while trade compression may alter bilateral counterparty relationships. TradeMech is a mechanism for markets in which one or two homogeneous fungible objects are traded. The mechanism transforms a network of initial bilateral contracts into chains and cycles, nets the designated object multilaterally on those chains and cycles, and replaces initial contracts with multiparty contracts whose assigned trades remain fractions of the original bilateral trades. The construction achieves maximal multilateral netting of the designated object while preserving each agent's contractual profit and preserving the location of counterparty risk. When a party fails to pre-commit a required object, the affected assigned trade is recovered as a bilateral contract between the same original counterparties and the remaining assigned trades are re-netted on residual chains, so no new counterparty exposure is created.
format Preprint
id arxiv_https___arxiv_org_abs_2605_15210
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle TradeMech: A Method to Multilaterally Net Trades Without Altering Counterparty Exposure
Aronoff, Daniel
Townsend, Robert M.
Virza, Madars
Trading and Market Microstructure
Theoretical Economics
Financial markets such as bond, derivatives, and repo markets form networks of interdependent obligations. Existing multilateral netting methods typically trade off the extent of netting against preservation of counterparty exposure: central clearing reallocates exposure to a central counterparty, while trade compression may alter bilateral counterparty relationships. TradeMech is a mechanism for markets in which one or two homogeneous fungible objects are traded. The mechanism transforms a network of initial bilateral contracts into chains and cycles, nets the designated object multilaterally on those chains and cycles, and replaces initial contracts with multiparty contracts whose assigned trades remain fractions of the original bilateral trades. The construction achieves maximal multilateral netting of the designated object while preserving each agent's contractual profit and preserving the location of counterparty risk. When a party fails to pre-commit a required object, the affected assigned trade is recovered as a bilateral contract between the same original counterparties and the remaining assigned trades are re-netted on residual chains, so no new counterparty exposure is created.
title TradeMech: A Method to Multilaterally Net Trades Without Altering Counterparty Exposure
topic Trading and Market Microstructure
Theoretical Economics
url https://arxiv.org/abs/2605.15210