The phrase "a counterparty to" is correct and usable in written English.
It is typically used in legal, financial, or business contexts to refer to a party involved in a transaction or agreement with another party.
Example: "In this contract, Company A is identified as a counterparty to Company B, responsible for fulfilling the terms of the agreement."
Alternatives: "an opposing party in" or "a participant in".
Bear is a counterparty to some $10 trillion of over-the-counter swaps.
The US government, in one form or another, is a counterparty to every single financial player in the world.
If the investment goes bad, the customer suddenly becomes a counterparty to whom the bank owes no obligation at all.
But as one hedge fund executive said: "Lehman was a counterparty to everyone — nobody really knows how it will end".
It stands accused of everything from bilking the taxpayers who rescued AIG, a huge insurer to which it was a counterparty, to helping Europe's sovereign basket-cases hide their debts.
Michael Aiello, a partner at Weil, Gotshal & Manges, noted that the emergence of derivatives like swaps had raised the issue of whether a sell-side adviser is also a counterparty to these instruments.
The current version of the legislation provides important legal certainty for all physical commodity transactions (not including agricultural commodities) entered into on a counterparty-to-counterparty basis or on an electronic trading facility.
The Treasury and the Federal Reserve noted in their statement that A.I.G. is a "significant counterparty to a number of major financial institutions".
Once the solar park has been commissioned, the owner usually enters into a contract with a suitable counterparty to undertake operation and maintenance (O&M).
The failure of a firm that is an important counterparty to others has the potential to severely disrupt many other financial institutions, their customers and other markets.
A large counterparty to derivatives contracts has not declared bankruptcy since the market grew to such enormous size, so Lehman will be a test.
