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Collateral Eligibility Tiers: What Counts as Good Collateral
Not every asset makes acceptable collateral. A counterparty that lends against a portfolio wants something it can seize and sell fast if the borrower defaults, so it ranks pledged assets into quality tiers and discounts each by a haircut. Understanding those tiers tells you what you can actually pledge and how much of it you will need.
Key Takeaways
- Collateral eligibility is the set of rules that decide which assets a counterparty will accept to secure an exposure, and at what discounted value.
- Assets fall into quality tiers, roughly cash, then government bonds, then investment-grade credit, then equities, with riskier or less liquid assets excluded entirely.
- Each eligible asset carries a haircut: a percentage cut to its market value that buffers the lender against price drops and sale delays.
- Higher-quality collateral gets a smaller haircut, so pledging cash or Treasuries lets you cover the same exposure with far less posted value than equities would require.
Key Takeaways
- Collateral eligibility is the set of rules that decide which assets a counterparty will accept to secure an exposure, and at what discounted value.
- Assets fall into quality tiers, roughly cash, then government bonds, then investment-grade credit, then equities, with riskier or less liquid assets excluded entirely.
- Each eligible asset carries a haircut: a percentage cut to its market value that buffers the lender against price drops and sale delays.
- Higher-quality collateral gets a smaller haircut, so pledging cash or Treasuries lets you cover the same exposure with far less posted value than equities would require.
What It Is
Collateral eligibility is the schedule, written into a credit agreement, that lists which asset types a counterparty will accept as security and how it will value each one. Two things sit at the core: an eligibility list (what is allowed at all) and a haircut schedule (how much each allowed asset is discounted). Anything not on the list is simply not collateral, no matter how valuable it is on paper.
A haircut is the percentage subtracted from an asset's market value to get its recognized collateral value. A 2% haircut on a $1,000,000 bond means the lender credits it as $980,000 of coverage.
The Intuition
A lender who holds your collateral has one worry: if you default, can it turn that collateral into enough cash to cover what you owe, quickly and without a fire-sale loss? Cash needs no selling and cannot fall in price, so it is the gold standard. A liquid government bond is nearly as good. A thinly traded small-cap stock might drop 30% before the lender can sell it, and might take days to unwind. Eligibility tiers and haircuts are simply the lender pricing that risk. The riskier and less liquid the asset, the deeper the discount, until at some point the asset is refused outright.
How It Works
Counterparties group acceptable assets into tiers by credit quality and liquidity, then attach a haircut to each:
- Tier 1: Cash in the agreement's base currency. Typically a 0% haircut.
- Tier 2: Government securities such as US Treasuries. Small haircuts that rise with maturity, from well under 1% for short bills to a few percent for long bonds.
- Tier 3: Investment-grade credit, such as high-grade corporate and agency bonds. Mid-single-digit to low-double-digit haircuts.
- Tier 4: Equities, usually only large-cap or index names. Haircuts commonly around 15% or more.
Assets below these tiers, such as junk bonds, private holdings, or illiquid securities, are often excluded. The recognized value of any pledge is its market value times one minus the haircut. Because prices move, counterparties revalue collateral daily and issue a margin call when coverage falls short. Concentration limits and currency-mismatch add-ons can raise the effective haircut further.
Worked Example
A fund must post collateral to cover a $10,000,000 exposure. It pledges a mix, valued under the counterparty's haircut schedule:
| Asset | Market value | Haircut | Recognized value |
|---|---|---|---|
| Cash (USD) | $4,000,000 | 0% | $4,000,000 |
| US Treasuries | $3,000,000 | 2% | $2,940,000 |
| Investment-grade corporate bonds | $2,000,000 | 8% | $1,840,000 |
| Large-cap equities | $2,000,000 | 15% | $1,700,000 |
| Total | $11,000,000 | $10,480,000 |
The fund posts $11,000,000 of market value but the counterparty only recognizes $10,480,000 after haircuts. That still clears the $10,000,000 requirement, leaving a $480,000 cushion. Notice the leverage of quality: the $4,000,000 of cash covers a full $4,000,000, while the $2,000,000 of equities covers only $1,700,000. Had the fund tried to meet the whole requirement with equities at a 15% haircut, it would have needed about $11,764,706 of stock (since $11,764,706 x 0.85 = $10,000,000) instead of $10,000,000 of cash.
Common Mistakes
- Confusing market value with collateral value. The number that matters to the lender is post-haircut. Pledging exactly $10,000,000 of market value against a $10,000,000 need leaves you short the moment any haircut applies.
- Assuming an asset qualifies. If it is not on the eligibility list, it counts as zero. A valuable but ineligible holding does nothing to reduce a margin call.
- Ignoring that haircuts move. In a stress event, counterparties widen haircuts and tighten eligibility, so collateral that covered you yesterday may not today.
- Overlooking currency and concentration add-ons. A collateral currency different from the exposure currency, or too much of one issuer, can trigger extra discounts that erode coverage.
Frequently Asked Questions
Q: What does collateral eligibility mean? Collateral eligibility is the set of rules in a credit agreement that specifies which assets a counterparty will accept as security and how it discounts each one. An asset that is not eligible provides no coverage at all, regardless of its market worth.
Q: How do quality tiers affect collateral eligibility haircuts? Higher tiers get smaller haircuts. Cash sits at the top with a 0% haircut, government bonds take small cuts, investment-grade credit takes more, and equities take the largest among eligible assets. The lower the quality and liquidity, the deeper the discount.
Q: Why is cash the best collateral? Cash needs no sale to realize value and cannot lose market price, so a lender faces no liquidation or price risk. That is why it carries a 0% haircut and covers an exposure dollar for dollar.
Q: What happens if my collateral falls below the required value? The counterparty issues a margin call, requiring you to post additional eligible collateral or cash to restore coverage. Because collateral is revalued daily, shortfalls surface fast and must be cured, often the same day.
Q: Can collateral eligibility rules change over time? Yes. Counterparties can widen haircuts, add concentration or currency add-ons, or drop asset types from the eligible list, especially during market stress. What qualified comfortably in calm markets may be discounted or refused in a crisis.
Sources
- Investopedia. "Collateral." https://www.investopedia.com/terms/c/collateral.asp
- Investopedia. "Haircut." https://www.investopedia.com/terms/h/haircut.asp
- Bank for International Settlements. "Basel III: Finalising Post-Crisis Reforms." https://www.bis.org/bcbs/publ/d424.htm
- ISDA. "2016 Credit Support Annex for Variation Margin." https://www.isda.org/books/2016-credit-support-annex-for-variation-margin/
Disclaimer
This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.