Cleared vs. Bilateral Swap Structures

Every swap trade carries two risks: the market risk you intended to take and the counterparty risk you probably didn't think about until 2008. Central clearing exists to eliminate the second one, and it's worked so well that over 80% of interest rate swap notional now flows through clearinghouses — with LCH SwapClear alone processing a record $779 trillion in notional during the first half of 2024. But "cleared" doesn't always mean "better," and bilateral swaps still serve roughly $95 trillion in outstanding notional across products that clearinghouses can't or won't touch. The practical question isn't which structure is superior. It's knowing exactly when each one earns its costs — and building your operational setup so you're not forced into the wrong one.

How Novation Actually Changes Your Risk (The Core Mechanism)

When you execute a cleared swap, something called novation happens at the moment the CCP accepts your trade. Your original agreement with your counterparty ceases to exist. In its place, two new trades appear: you facing the CCP, and the CCP facing your original counterparty. Neither of you has exposure to each other anymore.

The point is: novation isn't just paperwork — it fundamentally rewires who owes what to whom. If your counterparty defaults tomorrow, you don't care (at least not directly). The CCP stands between you and that loss, backed by layers of protection that no single bank can match.

CCP default waterfall → Your actual protection: Defaulter's margin → Defaulter's default fund contribution → CCP's own capital ("skin in the game") → Non-defaulting members' default fund → CCP recovery tools

In a bilateral swap, your protection is simpler and thinner: whatever collateral your counterparty posted under the CSA, plus your ability to close out and net across your ISDA relationship. That's it. If the collateral falls short of your mark-to-market exposure (and in a crisis, gaps widen fast), you're an unsecured creditor.

The rule that survives: cleared swaps don't eliminate counterparty risk — they mutualize it across the entire clearing membership. Bilateral swaps concentrate it in one name. The 2008 crisis proved that concentrated counterparty risk is precisely the kind that blows up when you need it least.

What's Mandated, What's Voluntary, and What's Exempt (The Regulatory Map)

The Dodd-Frank Act (and its European counterpart, EMIR) mandated central clearing for the most liquid, standardized OTC derivatives. In practice, this means:

Here's what the numbers actually look like: clearing rates for vanilla interest rate swaps now exceed 95% in major currencies. OIS clearing rates hit 99% even without a full mandate — participants clear voluntarily because the capital and netting benefits are overwhelming. But inflation swaps sat at just 10% cleared before UMR implementation pushed them to 83% (proof that regulation reshapes markets fast when it arrives). FX options and swaptions remain stubbornly bilateral — no CCP has successfully built a cleared options market yet.

Why this matters: if you're trading standard rate swaps, you're almost certainly clearing already. The real decisions happen at the edges — cross-currency basis swaps with non-standard features, exotic structures, or products where clearinghouse eligibility is partial or recent.

The Margin Math (Why Cleared Costs More Upfront but Less Overall)

You'll hear that bilateral swaps are "cheaper" because you avoid clearing fees. That's true in the narrowest sense and misleading in every way that matters. Let's run the actual numbers.

Your trade: $200 million, 10-year USD interest rate swap

The point is: the line items that show up on invoices favor bilateral. The line items that show up on your balance sheet — regulatory capital — overwhelmingly favor clearing. For a bank, the capital relief from a 2% risk weight versus 50-100% on the same notional dwarfs every explicit fee. That's why banks push nearly everything clearable through the CCP, even products without a mandate.

For buy-side firms (hedge funds, asset managers), the calculus differs. You don't face the same capital charges, so the margin funding cost matters more. But the netting benefit still tilts toward clearing — multilateral netting across all your cleared trades with every counterparty, versus bilateral netting only within each individual ISDA relationship.

The real play against "bilateral is cheaper" thinking: calculate your all-in cost including capital, netting benefit, and operational overhead — not just the fee schedule. For most participants trading standard products, clearing wins by a wide margin (no pun intended).

What Happens When Someone Defaults (The Stress Test That Matters)

This is where the structural difference between cleared and bilateral becomes vivid. Walk through it.

Scenario: Your counterparty (a mid-tier bank) defaults. You're in the money by $8.5 million on a 10-year rate swap.

If you cleared through LCH:

1. LCH declares a default event for the clearing member (your counterparty's FCM)
2. Your position is unaffected — LCH is your counterparty, not the defaulting bank
3. LCH uses the defaulter's posted margin ($8M+) to cover the position
4. If margin is insufficient, LCH taps the default waterfall (default fund, CCP capital)
5. Your daily variation margin continues flowing normally
6. You likely don't even notice operationally

Your loss: zero (unless the CCP itself fails — an event that hasn't happened at a major clearinghouse since the clearing mandate began).

If you traded bilaterally:

1. You trigger ISDA close-out netting across all trades with the defaulting bank
2. You calculate a net close-out amount across the entire ISDA relationship
3. You hold their posted VM ($8.5M) and IM (segregated at a custodian)
4. If your net claim exceeds collateral held (entirely possible in a volatile market where the default is happening precisely because of large market moves), the shortfall becomes an unsecured claim
5. You join the bankruptcy queue — recovering perhaps 40-60 cents on the dollar after years of litigation
6. Meanwhile, you need to replace the hedge at current (crisis-distorted) market levels

The lesson worth internalizing: collateral helps in bilateral, but it doesn't make you whole in tail scenarios. CCPs are designed specifically for tail scenarios — that's the entire product. The $431 billion in uncleared initial margin collected across the industry in 2024 provides meaningful protection, but it's fundamentally different from a CCP's mutualized, pre-funded, stress-tested default waterfall.

The CCP Landscape (Who Clears What, and Why Concentration Matters)

The clearing world is surprisingly concentrated:

LCH's dominance creates a liquidity magnet effect — because 95% of trades clear there, the netting pool is deepest there, which makes margin most efficient there, which attracts even more trades. This is rational for individual participants but creates systemic concentration risk (the "too important to fail" problem that regulators watch nervously).

JSCC's 100% volume growth in 2024 is worth noting — Japan's shift away from yield curve control and the BOJ's rate hikes drove massive hedging demand, and JSCC was the natural home for yen-denominated interest rate risk. When monetary policy regime changes happen, clearing volumes respond immediately because every hedger needs the same trades at the same time.

Why this matters: your choice of CCP isn't just about price. It's about where the netting pool lives for your currency and product mix. Clearing a USD swap at CME when 95% of the market clears at LCH means your margin won't benefit from multilateral netting against the broader pool — a hidden cost that doesn't appear on any fee schedule.

Bilateral's Remaining Stronghold (When Customization Justifies the Risk)

Not everything can — or should — be cleared. Bilateral swaps survive for good reasons in specific contexts:

Bespoke structures that CCPs won't accept: exotic coupon formulas, non-standard currencies, embedded optionality, or unusual tenors. If your corporate treasurer needs a 7-year-3-month cross-currency swap with a knock-in barrier tied to a commodity index, no clearinghouse will take it. That's a bilateral trade governed by an ISDA Master Agreement with a negotiated CSA.

End-user exemptions that make clearing unnecessary: a corporation hedging its floating-rate debt with a plain vanilla swap can elect the end-user exemption under Dodd-Frank, avoiding the cost of establishing clearing infrastructure (FCM relationships, margin accounts, connectivity) for what might be a handful of trades per year.

Relationship and flexibility value: bilateral trades can be amended by mutual agreement. Cleared trades require novation — a formal process of replacing one cleared trade with another. If you routinely restructure hedges, bilateral offers operational flexibility that cleared lacks.

The test: if you're choosing bilateral for a standard, clearing-eligible product, ask yourself — am I doing this because of genuine structural need, or because I haven't calculated the true all-in cost of not clearing? For most vanilla rate swaps, the answer points firmly toward clearing. For genuinely bespoke products, bilateral remains the only option (and the ISDA/CSA framework, while imperfect, has decades of legal precedent behind it).

The UMR Revolution (Why Bilateral Got More Expensive)

The Uncleared Margin Rules (UMR), fully phased in through 2022, fundamentally changed the bilateral cost equation. Before UMR, bilateral swaps often required only variation margin — daily mark-to-market settlement. No initial margin. That made bilateral dramatically cheaper.

Now, any firm with an average aggregate notional amount (AANA) above the threshold (roughly $8 billion in the US) must exchange initial margin on uncleared derivatives, calculated using either the ISDA SIMM model (adopted by most firms) or a standardized schedule. That IM must be posted to a segregated, third-party custodian — you can't rehypothecate it or net it against other obligations.

The ISDA SIMM calculation uses a 99% confidence interval over a 10-day margin period of risk. In 2024, the 32 largest dealers collected $431 billion in uncleared IM — essentially flat year-over-year, with regulatory IM under SIMM actually declining by $9.8 billion (2.7%) for the first time, to $354 billion. That decline signals a market gradually migrating clearable products out of bilateral and into CCPs, leaving only the genuinely unclearable in the bilateral pool.

The practical point: UMR closed the cost gap between cleared and bilateral for standard products. The remaining bilateral market is increasingly composed of trades that genuinely can't be cleared — which is exactly what regulators intended.

Decision Framework (When to Clear, When to Stay Bilateral)

Clear the swap when:

• The product is standard and CCP-eligible (this covers the vast majority of rate swaps, index CDS)
• You value capital efficiency (banks: almost always)
• You want multilateral netting across counterparties
• Counterparty creditworthiness is uncertain or variable
• You trade frequently enough to justify FCM infrastructure

Keep it bilateral when:

• The structure is genuinely bespoke (non-standard features the CCP won't accept)
• You qualify for an end-user exemption and trade infrequently
• You need amendment flexibility that cleared markets don't offer
• Your AANA is below UMR thresholds (making bilateral IM-free)

The causal chain that drives most decisions: Clearing mandate (regulatory push) → Capital relief (balance sheet pull) → Netting efficiency (margin pull) → Liquidity concentration at CCP (market pull) → Voluntary clearing even where not mandated

Clearing Setup Checklist (Tiered)

Essential (do these before your first cleared trade)

These items prevent operational failure on day one:

• Establish an FCM relationship with a major clearing broker (and document fee schedules for clearing, execution, margin financing)
• Execute the clearing addendum to your trading documentation
• Fund initial margin accounts at the CCP (expect T+1 calls)
• Test trade submission connectivity to your target CCP (LCH, CME, or both)

High-Impact (systematic risk management)

For firms clearing regularly:

• Establish a backup FCM — if your primary FCM defaults, you need porting capability within hours, not weeks
• Configure intraday margin monitoring (CCPs can and do make intraday calls during volatile markets)
• Build a margin forecasting model that estimates IM requirements before trade execution
• Implement compression cycles (TriOptima, LCH's own compression service) to reduce line items and margin

Optional (for sophisticated operations)

If you're optimizing beyond the basics:

• Evaluate cross-margining programs (CME offers cross-margining between futures and cleared swaps)
• Analyze CCP selection by netting pool depth for your specific currency and tenor profile
• Monitor CCP default fund sizing and stress test disclosures (CPMI-IOSCO quantitative disclosures, published quarterly)

Next Step (Put This Into Practice)

Pull your current swap portfolio and classify every trade: cleared or bilateral, and if bilateral, clearing-eligible or genuinely bespoke.

How to do it:

1. Export your swap positions with product type, currency, tenor, and any non-standard features
2. Check each bilateral trade against your CCP's eligible product list (LCH SwapClear publishes theirs by currency and tenor)
3. Flag any bilateral trade that could be cleared but isn't

What you'll likely find:

• 0-5% clearing-eligible but bilateral: You're well-optimized — focus on compression and margin efficiency
• 5-20% clearing-eligible but bilateral: Meaningful capital and netting savings available — prioritize migration
• 20%+: Significant structural inefficiency — the cost of not clearing is almost certainly exceeding the cost of establishing or expanding your clearing infrastructure

Action: For every clearing-eligible bilateral trade you find, estimate the capital charge differential (2% risk weight cleared vs. your current counterparty risk weight bilateral). Multiply by your cost of capital. That number is the annual drag you're paying for a structure that adds risk rather than reducing it.