How to structure a partial fill on a large OTC trade
When a trade is large enough that a single settlement carries meaningful counterparty risk — or when the seller simply cannot deliver the full position in one transfer — the right answer is not to wait, hope, and wire. The right answer is to break the trade into tranches: discrete, self-contained settlement events, each with its own confirmed instruction, its own transfer, and its own finality. OTC brokers and dealmakers who understand how to structure this properly protect their clients on both sides of the table, protect their own fee, and produce a closing process that looks and feels professional rather than improvised. This article walks through the mechanics of tranched OTC settlement — how to define each tranche, how to sequence them, how to protect against the failure of any single leg, and how to make sure every party who gets paid at close actually gets paid.
Why a single settlement fails at scale
The most common OTC use case is block trading. Institutions routinely execute trades worth millions — sometimes hundreds of millions — of dollars, and in a public order book, placing such a large order would move the market significantly. The OTC structure solves the market-impact problem by keeping the deal private and negotiated. But it creates a different problem: at very large sizes, a single settlement event concentrates every risk into a single moment. If that moment fails, both sides may have partially performed — one may have delivered assets, the other may not yet have funded — and resolving the wreckage is expensive, slow, and sometimes impossible without litigation.
Settlement risk is, in practice, an issue of real consequence where counterparty default means the credit exposure equals the full principal value of the contract. That is the number you are staking on your counterparty’s integrity and operational competence when you run a single-ticket close on a nine-figure trade. For deals in the tens of millions and above, the sensible structure is not a single settlement — it is a sequence of smaller settlements, each one conditional on the last, each one carrying only the fraction of principal that is appropriate for the trust level that has been established between the parties at that moment in the deal.
Settlement risk is the risk of losing payments made or securities delivered to the defaulting party before the default was detected. In some cases, both the seller and the buyer face losing the full principal value of any transferred funds. Tranching does not eliminate settlement risk — it caps the maximum exposure on any single leg to whatever size you have negotiated into each tranche, which is a fundamentally different position to be in.
The logic of tranching: what you are actually doing and why
Tranching an OTC settlement is not the same as tranching a deal’s financing structure, and it is not the same as staging a trade across multiple sessions to manage market impact. Those are distinct disciplines. What you are doing here is something more specific: you are taking a single agreed trade — a single price, a single seller, a single buyer, already negotiated and documented — and breaking the delivery and payment into sequential slices, each of which settles completely before the next begins.
The purpose is risk compartmentalization. Structuring large transactions in tranches rather than all-at-once transfers is a recognized risk mitigation approach. Each tranche acts as a proof-of-performance event. Tranche one settles. The buyer receives assets. The seller receives funds. Both parties can confirm the mechanics work, the wallets are correct, the counterparty is who they said they were, and the deal is functioning as documented. Tranche two then proceeds on the basis of demonstrated performance rather than trust alone. This is not a lack of confidence in the counterparty — it is sound professional practice, and experienced counterparties will recognize it as such.
There is a secondary benefit that matters enormously in practice: liquidity management. If a large investor or fund executes a large trade but cannot access fiat until the following day or later, they may miss liquidity windows. Shortening the clearance and settlement cycle frees up liquidity for institutional players and reduces exposure to counterparty and market risk. Institutional clients may require same-day liquidity to respond to market shifts, manage FX exposure, or redeploy capital, but sluggish settlement processes can freeze capital. Tranching unlocks capital progressively. After tranche one settles, the buyer has already received and can begin deploying a portion of the position, and the seller has already received and can begin redeploying a portion of the proceeds. Neither side is frozen waiting for a single, massive wire to clear.
Defining tranche size: the three variables that determine your split
There is no universal rule about how many tranches a large trade should have or what each one should be sized at. The right structure is a function of three specific variables, and any broker or advisor structuring this should be able to articulate their reasoning on each one.
Counterparty risk tolerance. This is the primary driver. How much are you comfortable having in flight — meaning transferred but not yet matched on the other side — at any given moment? For counterparties with no prior settlement history, first tranches should be small: a test tranche of five to ten percent of the total notional is not unusual. Using segregated, labeled wallets for OTC settlement and testing small first is standard professional practice. That first tranche costs you nothing in terms of deal economics — it is simply confirmation that the plumbing works and the parties are who they claim to be. If the first tranche settles cleanly, the next can be larger.
Liquidity constraints on both sides. Some sellers cannot deliver the full position in a single transfer because of operational or custody constraints — assets may be spread across multiple venues, subject to internal approval limits per transaction, or structured in such a way that partial delivery is the only practical option. OTC trades can be structured with customized settlement terms, including specific delivery times, custodial arrangements, and netting agreements. For institutions that hold assets across multiple custodians or need to coordinate settlement with fiat banking rails, this flexibility is essential. The tranche structure should reflect the seller’s actual delivery capacity, not an idealized scenario.
Time-value and price risk across the settlement window. When a trade is structured over multiple tranches, there is a window between the first tranche and the last during which the negotiated price must remain valid. This is particularly acute in volatile markets. When combined with stablecoins, blockchain settlement can further enhance liquidity management and reduce settlement risk in cross-border transactions. If the settlement currency is stablecoin-denominated, price risk across the settlement window is eliminated entirely — what was agreed at negotiation is what settles in each tranche, without forex or spot-price slippage contaminating the economics of later legs. Where the settlement involves native cryptocurrency rather than stablecoins, the parties need to agree explicitly — in the trade documentation — whether later tranches settle at the original negotiated price or at a mark-to-market adjustment. This is a negotiating point that brokers should raise early, not discover in the middle of tranche three.
Sequencing the tranches: a working model
For a trade of meaningful size — say, $10 million to $50 million in notional value — a three-tranche structure is generally the most practical. Fewer tranches than three means each individual settlement event is too large to serve as a genuine risk management tool. More than five or six tranches begins to create operational fatigue and introduces its own coordination risk.
A working model looks like this:
Tranche one (10-15% of notional): the proof tranche. This is the mechanical test. Wallet addresses are confirmed, settlement instructions are verified, and both sides execute a real, fully settled transfer. The amount is small enough that if something goes wrong — wrong address, failed wire, counterparty delay — the exposure is contained. The professional managing the deal should confirm settlement of tranche one independently before issuing any instruction to proceed to tranche two. Do not assume. Verify.
Tranche two (35-45% of notional): the commitment tranche. Once tranche one has settled and both parties have confirmed receipt, the parties proceed to the largest single leg. This is where the bulk of the risk in a three-tranche structure lives, but by this point both sides have demonstrated their ability and willingness to perform. The settlement instructions are already confirmed from tranche one. The mechanics are known. The tranche two failure rate in deals where tranche one has already settled cleanly is materially lower than in deals where the parties are performing for the first time.
Tranche three (40-55% of notional): the close tranche. The remainder. At this point, the trade is effectively complete in the only way that matters to both principals — each has received well over half of what was agreed, both sides have strong economic incentive to complete, and the relationship has been validated through two prior settlements. This tranche rarely presents problems in a properly structured deal.
The exact percentages are less important than the principle: start small, build confirmation, then complete. The broker’s job is to enforce that sequence rigorously, not to allow either party to compress the tranches under pressure.
Documentation: what the trade agreement must specify before tranche one moves
Every brokered OTC deal of this nature should be governed by a written trade agreement that addresses the tranche structure explicitly before any asset moves. The agreement should specify the number of tranches, the size of each tranche in both percentage and absolute terms, the delivery timing for each leg (meaning the outside deadline by which each tranche must settle once the prior tranche has confirmed), the wallet or bank details for each settlement leg, and — critically — what happens if any single tranche fails to settle within the agreed window.
The entire settlement process is governed by robust legal documentation, like ISDA Master Agreements for derivatives, GMRA for repo trades, and private bilateral contracts for spot crypto or FX trades. For spot digital asset trades, that bilateral contract does not need to be a thick binder — but it must address tranche mechanics explicitly. Ambiguity at this point is not a technicality. It is the mechanism by which disputes occur. If tranche two fails to settle on time, does the buyer have the right to terminate and retain the assets already delivered? Does the seller have the right to demand return of tranche one proceeds? These questions are not esoteric; they are the exact questions that arise when something goes wrong, and the time to answer them is before tranche one moves, not after.
The first and most critical task is to achieve exact match with the counterparty. Any discrepancy in notional, rate, or date triggers an immediate investigation. This applies with equal force to tranched crypto trades. Every settlement instruction — wallet address, stablecoin denomination, chain selection, amount — should be confirmed in writing by both parties before each tranche executes. A single character error in a wallet address in a tranched digital asset settlement results in a permanent, unrecoverable loss. There is no correspondent bank to call. There is no reversal. Confirmation is not a formality; it is the most important operational step in the entire process.
The broker’s role in a tranched settlement: more active, not less
Some brokers treat a tranched deal as easier to manage because the risk per event is smaller. The opposite is true. A tranched settlement requires more active management than a single-ticket close because the broker must shepherd multiple discrete settlement events, each of which can introduce new failure modes.
After each tranche settles, the broker should independently verify settlement from both sides — not simply accept one party’s confirmation, but obtain acknowledgment from the receiving party that the assets have arrived, in the correct amount, in the correct denomination, at the correct address. Daily reconciliation is non-negotiable. After each settlement event, positions must be checked, cash must be confirmed against statements, and every single amount must be accounted for. Every break, no matter how small, is investigated until it is resolved. The same discipline applies to each leg of a tranched OTC trade.
Between tranches, the broker should also monitor for any material change in circumstances that might justify pausing the sequence. A significant price move in the underlying asset between tranche one and tranche two is not, by itself, grounds to pause — if the price was negotiated and documented, the deal should proceed. But a failure of the counterparty to confirm tranche one receipt within a reasonable window, or any indication of counterparty liquidity stress, is a legitimate reason to pause and reconsider before releasing tranche two instructions.
Trading desks use various strategies to mitigate risk, such as breaking trades into smaller chunks, spreading transactions across multiple liquidity providers, or leveraging private liquidity pools. The broker managing a tranched settlement is performing a structurally similar function: managing sequencing, managing confirmation, and managing the information flow between parties so that each leg proceeds on the basis of verified prior performance.
When the counterparty is a principal desk versus an agency relationship
The tranche structure looks different depending on whether the trade is being run through a principal desk or structured as an agency match between two identified counterparties.
In a principal desk arrangement, the desk is trading from its own book. The OTC desk locks in the trade once both sides agree on terms, and principal desks use their own resources to complete the deal, while agency desks connect buyers and sellers. When the desk is principal, the credit risk of the tranche structure is concentrated on the desk — either the desk pays on schedule or it does not. The tranching still matters, but it functions more as a liquidity management tool than as a counterparty-risk management tool. The broker or advisor working with a principal desk should focus on ensuring that the desk’s settlement instructions and timing commitments are documented, and that partial settlement is explicitly permitted under the trade agreement.
In an agency arrangement — where the broker has identified both sides and the parties are settling directly — the tranche structure carries all of the counterparty risk management function described above. The broker’s role is active intermediation at each settlement event: holding the sequence, confirming delivery, and ensuring that neither side moves to the next tranche without the broker’s independent confirmation that the prior one has fully settled. Desks can help break down a very large order into smaller pieces to find a match without causing a big price stir. The same logic applies to settlement sequencing: breaking the settlement into smaller, confirmed pieces reduces the price that either party pays in terms of risk for each leg of the deal.
On-chain settlement and what it changes
Tranched settlement in digital assets has a structural advantage over its traditional-finance equivalent: crypto OTC trading benefits from blockchain-based settlement mechanisms. Transactions settled on-chain can offer faster and more predictable finality compared to traditional financial infrastructure, as they are not constrained by banking hours or correspondent networks. In a traditional OTC settlement, confirming that tranche one has settled may take hours — a wire may appear pending at the sending bank before it appears at the receiving bank, and correspondent delays can introduce uncertainty about finality. On-chain, finality is unambiguous. The transaction either confirmed on-chain or it did not. The broker can verify this independently, without needing confirmation from either party, which is a meaningful professional advantage.
On-chain settlement additionally provides verifiable transaction records, supporting reconciliation and audit processes, while reducing reliance on multiple intermediaries. For a broker running a five-tranche settlement on a $40 million digital asset trade, the ability to verify each leg independently — without calling anyone — is not a minor convenience. It is the foundation of rigorous tranche management. Every settlement event is permanently recorded, the timing is immutable, and the amounts are exact. Reconciliation after the fact is deterministic.
This is the context in which payment routing tools matter most. When each tranche closes, the question of how proceeds are distributed — across the broker’s fee, any splits between multiple advisors or referrers, and the seller’s net proceeds — needs to happen as part of the settlement itself, not as a separate cleanup step after the fact. Shaka is built exactly for this: the professional sets the recipient wallets and the split percentages before the deal moves, and when each tranche settles, every party receives their portion in the same transaction, automatically. There is no chasing, no manual calculation per tranche, and no possibility of a party receiving five out of six tranches and then encountering a dispute on the last. The closing mechanic is established once and operates consistently across every leg of the deal.
Common structural mistakes in tranched OTC settlements
Equal-sized tranches. Splitting a $30 million trade into six equal tranches of $5 million each feels orderly, but it is not optimal. The first tranche should be smaller than the rest — it is a test, not a full commitment. Equal tranches front-load risk unnecessarily and sacrifice the graduated trust-building that makes the structure work.
No explicit failure clause. Proceeding to tranche two without documenting what happens if tranche two fails leaves both parties in legal ambiguity. The time to answer that question is before tranche one moves.
Overlapping tranches. Some parties propose running tranches concurrently — releasing tranche two instructions before tranche one has fully confirmed — in the interest of speed. This is a structural error. Forgetting to confirm net versus gross settlement amounts and deadlines is one of the most common operational failures in large OTC trades, and concurrent tranches compound this risk by creating ambiguity about which settlement event any given transaction belongs to. Sequential is the only safe structure.
Verbal confirmation instead of written. In a tranched settlement, every settlement instruction and every confirmation of receipt must be written — email, secure messaging platform, or signed document. Verbal confirmations create disputes about whether receipt was actually acknowledged. They do not constitute the clean record that the post-deal audit trail requires.
Ignoring the fiat leg timing. Ignoring custody and withdrawal timelines when planning fiat legs can derail an otherwise well-structured tranche sequence. If the buyer is funding in fiat, the timing of the fiat wire must be explicitly coordinated with the crypto delivery schedule, and the tranche agreement must specify whether crypto delivery waits for confirmed receipt of fiat or proceeds concurrently. These are not details — they are the core mechanics of the settlement.
The professional advantage of a well-structured tranche deal
A broker or advisor who can walk into a negotiation and propose a specific, documented tranche structure — with clear sizing rationale, explicit sequencing rules, defined failure clauses, and confirmed settlement mechanics — is demonstrating professional competence that closes deals faster and at higher value than improvised approaches.
Counterparties at institutional scale have almost certainly encountered failed or disputed OTC settlements before. A well-structured tranche proposal signals that you have thought through what happens when things go wrong, not just when they go right. It builds confidence on both sides of the table that the deal will close professionally, and it protects your own position — the fee that depends on a closed deal — by ensuring that each leg of the trade has a defined path to completion.
The mechanics of large OTC trades are not inherently complicated. What makes them hard is the combination of size, speed expectations, and the absence of any central clearing infrastructure to catch errors. The tranche structure is the professional’s answer to all three constraints: it keeps each settlement event small enough to be manageable, builds the pace naturally from a confirmed test tranche through to a clean close, and creates a documented record at every step that protects every party in the event of a dispute. Getting paid on the close of a $30 million OTC trade should not depend on a single, massive transaction executing flawlessly under pressure. Structure it so it doesn’t have to.
