Collateralized mortgage obligation
Encyclopedia
A collateralized mortgage obligation (CMO) is a type of financial debt vehicle that was first created in 1983 by the investment banks Salomon Brothers
and First Boston
for U.S. mortgage lender Freddie Mac. (The Salomon Brothers team was led by Gordon Taylor
. The First Boston team was led by Dexter Senft).
Legally, a CMO is a special purpose entity
that is wholly separate from the institution(s) that create it. The entity is the legal owner of a set of mortgages, called a pool. Investors in a CMO buy bonds issued by the CMO, and they receive payments according to a defined set of rules. With regard to terminology, the mortgages themselves are termed collateral
, the bonds are tranches (also called classes), while the structure is the set of rules that dictates how money received from the collateral will be distributed. The legal entity, collateral, and structure are collectively referred to as the deal.
Investors in CMOs include bank
s, hedge fund
s, insurance companies, pension fund
s, mutual fund
s, government agencies, and most recently central bank
s. This article focuses primarily on CMO bonds as traded in the United States of America.
The term collateralized mortgage obligation refers to a specific type of legal entity, but investors also frequently refer to deals issued using other types of entities such as REMIC
s as CMOs.
Salomon Brothers and First Boston created the CMO concept to address these issues. A CMO is essentially a way to create many different kinds of bonds from the same mortgage loan so as to please many different kinds of investors. For example:
Whenever a group of mortgages is split into different classes of bonds, the risk does not disappear. Rather, it is reallocated among the different classes. Some classes receive less risk of a particular type; other classes more risk of that type. How much the risk is reduced or increased for each class depends on how the classes are structured.
s (savings and loans), mortgage companies, and the consumer lending units of large commercial banks. Loans meeting certain size and credit criteria can be insured against losses resulting from borrower delinquencies and defaults by any of the Government Sponsored Enterprises (GSEs) (Freddie Mac, Fannie Mae, or Ginnie Mae). GSE guaranteed loans can serve as collateral for "Agency CMOs", which are subject to interest rate risk but not credit risk. Loans not meeting these criteria are referred to as "Non-Conforming", and can serve as collateral for "private label mortgage bonds", which are also called "whole loan CMOs". Whole loan CMOs are subject to both credit risk and interest rate risk. Issuers of whole loan CMOs generally structure their deals to reduce the credit risk of all certain classes of bonds ("Senior Bonds") by utilizing various forms of credit protection in the structure of the deal.
If the "overcollateralization" turns into "undercollateralization" (the assumptions of the default rate were inadequate), then the CMO defaults. CMOs have contributed to the subprime mortgage crisis.
with a cap of 16%, the other being an inverse floater that pays a coupon of 16% minus LIBOR.
A NAS tranche receives principal payments according to a schedule which shows for a given month the share of pro rata principal that must be distributed to the NAS tranche.
The construction of a floater/inverse can be seen in two stages. The first stage is to synthetically raise the effective coupon to the target floater cap, in the same way as done for the PO/Premium fixed rate pair. As an example using $100mm 6% collateral, targeting an 8% cap, we generate $25mm of PO and $75mm of '8 off 6'. The next stage is to cut up the premium coupon into a floater and inverse coupon, where the floater is a linear function of the index, with unit slope and a given offset or spread. In the example, the 8% coupon of the '8 off 6' is cut into a floater coupon of:
1 * LIBOR + 0.40%
(indicating a 0.40%, or 40bps, spread in this example)
The inverse formula is simply the difference of the original premium fixed rate coupon less the floater formula. In the example:
8% - (1 * LIBOR + 0.40%) = 7.60% - 1 * LIBOR
The floater coupon is allocated to the premium fixed rate tranche principal, in the example the $75mm '8 off 6', giving the floater tranche of '$75mm 8% cap + 40bps LIBOR SEQ floater'. The floater will pay LIBOR + 0.40% each month on an original balance of $75mm, subject to a coupon cap of 8%.
The inverse coupon is to be allocated to the PO principal, but has been generated of the notional principal of the premium fixed rate tranche (in the example the PO principal is $25mm but the inverse coupon is notionalized off $75mm). Therefore the inverse coupon is 're-notionalized' to the smaller principal amount, in the example this is done by multiplying the coupon by ($75mm /$25mm) = 3. Therefore the resulting coupon is:
3 * (7.60% - 1 * LIBOR) = 22.8% - 3 * LIBOR
In the example the inverse generated is a '$25mm 3 times levered 7.6 strike LIBOR SEQ inverse'.
Salomon Brothers
Salomon Brothers was a bulge bracket, Wall Street investment bank. Founded in 1910 by three brothers along with a clerk named Ben Levy, it remained a partnership until the early 1980s, when it was acquired by the commodity trading firm Phibro Corporation and then became Salomon Inc. Eventually...
and First Boston
First Boston
First Boston Corporation was a New York-based, bulge bracket, investment bank, founded in 1932 and acquired by Credit Suisse in 1990. Together with its sister investment banks, it was referred to as CS First Boston after 1993 and part of Credit Suisse First Boston after 1996, the First Boston part...
for U.S. mortgage lender Freddie Mac. (The Salomon Brothers team was led by Gordon Taylor
Gordon Taylor
Gordon Edward Taylor was a Canadian politician, businessman and teacher.-Provincial political career:He was first elected to the Legislative Assembly of Alberta in the 1940 provincial election representing Drumheller for Social Credit and continued to sit in the legislature for 39 years...
. The First Boston team was led by Dexter Senft).
Legally, a CMO is a special purpose entity
Special purpose entity
A special purpose entity is a legal entity created to fulfill narrow, specific or temporary objectives...
that is wholly separate from the institution(s) that create it. The entity is the legal owner of a set of mortgages, called a pool. Investors in a CMO buy bonds issued by the CMO, and they receive payments according to a defined set of rules. With regard to terminology, the mortgages themselves are termed collateral
Collateral (finance)
In lending agreements, collateral is a borrower's pledge of specific property to a lender, to secure repayment of a loan.The collateral serves as protection for a lender against a borrower's default - that is, any borrower failing to pay the principal and interest under the terms of a loan obligation...
, the bonds are tranches (also called classes), while the structure is the set of rules that dictates how money received from the collateral will be distributed. The legal entity, collateral, and structure are collectively referred to as the deal.
Investors in CMOs include bank
Bank
A bank is a financial institution that serves as a financial intermediary. The term "bank" may refer to one of several related types of entities:...
s, hedge fund
Hedge fund
A hedge fund is a private pool of capital actively managed by an investment adviser. Hedge funds are only open for investment to a limited number of accredited or qualified investors who meet criteria set by regulators. These investors can be institutions, such as pension funds, university...
s, insurance companies, pension fund
Pension fund
A pension fund is any plan, fund, or scheme which provides retirement income.Pension funds are important shareholders of listed and private companies. They are especially important to the stock market where large institutional investors dominate. The largest 300 pension funds collectively hold...
s, mutual fund
Mutual fund
A mutual fund is a professionally managed type of collective investment scheme that pools money from many investors to buy stocks, bonds, short-term money market instruments, and/or other securities.- Overview :...
s, government agencies, and most recently central bank
Central bank
A central bank, reserve bank, or monetary authority is a public institution that usually issues the currency, regulates the money supply, and controls the interest rates in a country. Central banks often also oversee the commercial banking system of their respective countries...
s. This article focuses primarily on CMO bonds as traded in the United States of America.
The term collateralized mortgage obligation refers to a specific type of legal entity, but investors also frequently refer to deals issued using other types of entities such as REMIC
Remic
Remic is a Japanese animation studio. They are notable for doing the animation in the anime series Renkin 3-kyū Magical ? Pokān and Dōjin Work.-Produced series:Renkin 3-kyū Magical ? Pokān*Series run: April 4, 2006 — June 20, 2006...
s as CMOs.
Purpose
The most basic way a mortgage loan can be transformed into a bond suitable for purchase by an investor would simply be to "split it". For example, a $300,000 30 year mortgage with an interest rate of 6.5% could be split into 300 1000 dollar bonds. These bonds would have a 30 year amortization, and an interest rate of 6.00% for example (with the remaining .50% going to the servicing company to send out the monthly bills and perform servicing work). However, this format of bond has various problems for various investors- Even though the mortgage is 30 years, the borrower could theoretically pay off the loan earlier than 30 years, and will usually do so when rates have gone down, forcing the investor to have to reinvest his money at lower interest rates, something he may have not planned for. This is known as prepayment risk.
- A 30 year time frame is a long time for an investor's money to be locked away. Only a small percentage of investors would be interested in locking away their money for this long. Even if the average home owner refinanced their loan every 10 years, meaning that the average bond would only last 10 years, there is a risk that the borrowers would not refinance, such as during an extending high interest rate period, this is known as extension risk. In addition, the longer time frame of a bond, the more the price moves up and down with the changes of interest rates, causing a greater potential penalty or bonus for an investor selling his bonds early. This is known as interest rate riskInterest rate riskInterest rate risk is the risk borne by an interest-bearing asset, such as a loan or a bond, due to variability of interest rates. In general, as rates rise, the price of a fixed rate bond will fall, and vice versa...
.
- Most normal bonds can be thought of as "interest only loans", where the borrower borrows a fixed amount and then pays interest only before returning the principal at the end of a period. On a normal mortgage, interest and principal are paid each month, causing the amount of interest earned to decrease. This is undesirable to many investors because they are forced to reinvest the principal. This is known as reinvestment riskReinvestment riskReinvestment risk is one of the main genres of financial risk. The term describes the risk that a particular investment might be canceled or stopped somehow, that one may have to find a new place to invest that money with the risk being there might not be a similarly attractive investment available...
.
- On loans not guaranteed by the quasi-governmental agencies Fannie Mae or Freddie Mac, certain investors may not agree with the risk reward tradeoff of the interest rate earned versus the potential loss of principal due to the borrower not paying. The latter event is known as default risk.
Salomon Brothers and First Boston created the CMO concept to address these issues. A CMO is essentially a way to create many different kinds of bonds from the same mortgage loan so as to please many different kinds of investors. For example:
- A group of mortgages could create 4 different classes of bonds. The first group would receive any prepayments before the second group would, and so on. Thus the first group of bonds would be expected to pay off sooner, but would also have a lower interest rate. Thus a 30 year mortgage is transformed into bonds of various lengths suitable for various investors with various goals.
- A group of mortgages could create 4 different classes of bonds. Any losses would go against the first group, before going against the second group, etc. The first group would have the highest interest rate, while the second would have slightly less, etc. Thus an investor could choose the bond that is right for the risk they want to take (i.e. a conservative bond for an insurance company, a speculative bond for a hedge fund).
- A group of mortgages could be split into principal-only and interest-only bonds. The "principal-only" bonds would sell at a discount, and would thus be zero coupon bonds (e.g., bonds that you buy for $800 each and which mature at $1,000, without paying any cash interest). These bonds would satisfy investors who are worried that mortgage prepayments would force them to re-invest their money at the exact moment interest rates are lower; countering this, principal only investors in such a scenario would also be getting their money earlier rather than later, which equates to a higher return on their zero-coupon investment. The "interest-only" bonds would include only the interest payments of the underlying pool of loans. These kinds of bonds would dramatically change in value based on interest rate movements, e.g., prepayments mean less interest payments, but higher interest rates and lower prepayments means these bonds pay more, and for a longer time. These characteristics allow investors to choose between interest-only (IO) or principal-only (PO) bonds to better manage their sensitivity to interest rates, and can be used to manage and offset the interest rate-related price changes in other investments.
Whenever a group of mortgages is split into different classes of bonds, the risk does not disappear. Rather, it is reallocated among the different classes. Some classes receive less risk of a particular type; other classes more risk of that type. How much the risk is reduced or increased for each class depends on how the classes are structured.
Credit protection
CMOs are most often backed by mortgage loans, which are originated by thriftThrift
Thrift may refer to:* A savings and loan association in the United States* Restrained or disciplined spending habits* Apache Thrift a remote procedure call framework developed at Facebook for "scalable cross-language services development"....
s (savings and loans), mortgage companies, and the consumer lending units of large commercial banks. Loans meeting certain size and credit criteria can be insured against losses resulting from borrower delinquencies and defaults by any of the Government Sponsored Enterprises (GSEs) (Freddie Mac, Fannie Mae, or Ginnie Mae). GSE guaranteed loans can serve as collateral for "Agency CMOs", which are subject to interest rate risk but not credit risk. Loans not meeting these criteria are referred to as "Non-Conforming", and can serve as collateral for "private label mortgage bonds", which are also called "whole loan CMOs". Whole loan CMOs are subject to both credit risk and interest rate risk. Issuers of whole loan CMOs generally structure their deals to reduce the credit risk of all certain classes of bonds ("Senior Bonds") by utilizing various forms of credit protection in the structure of the deal.
Credit tranching
The most common form of credit protection is called credit tranching. In the simplest case, credit tranching means that any credit losses will be absorbed by the most junior class of bondholders until the principal value of their investment reaches zero. If this occurs, the next class of bonds absorb credit losses, and so forth, until finally the senior bonds begin to experience losses. More frequently, a deal is embedded with certain "triggers" related to quantities of delinquencies or defaults in the loans backing the mortgage pool. If a balance of delinquent loans reaches a certain threshold, interest and principal that would be used to pay junior bondholders is instead directed to pay off the principal balance of senior bondholders, shortening the life of the senior bonds.Overcollateralization
In CMOs backed by loans of lower credit quality, such as subprime mortgage loans, the issuer will sell a quantity of bonds whose principal value is less than the value of the underlying pool of mortgages. Because of the excess collateral, investors in the CMO will not experience losses until defaults on the underlying loans reach a certain level.If the "overcollateralization" turns into "undercollateralization" (the assumptions of the default rate were inadequate), then the CMO defaults. CMOs have contributed to the subprime mortgage crisis.
Excess spread
Another way to enhance credit protection is to issue bonds that pay a lower interest rate than the underlying mortgages. For example, if the weighted average interest rate of the mortgage pool is 7%, the CMO issuer could choose to issue bonds that pay a 5% coupon. The additional interest, referred to as "excess spread", is placed into a "spread account" until some or all of the bonds in the deal mature. If some of the mortgage loans go delinquent or default, funds from the excess spread account can be used to pay the bondholders. Excess spread is a very effective mechanism for protecting bondholders from defaults that occur late in the life of the deal because by that time the funds in the excess spread account will be sufficient to cover almost any losses.Prepayment tranching
The principal (and associated coupon) stream for CMO collateral can be structured to allocate prepayment risk. Investors in CMOs wish to be protected from prepayment risk as well as credit risk. Prepayment risk is the risk that the term of the security will vary according to differing rates of repayment of principal by borrowers (repayments from refinancings, sales, curtailments, or foreclosures). If principal is prepaid faster than expected (for example, if mortgage rates fall and borrowers refinance), then the overall term of the mortgage collateral will shorten, and the principal returned at par will cause a loss for premium priced collateral. This prepayment risk cannot be removed, but can be reallocated between CMO tranches so that some tranches have some protection against this risk, whereas other tranches will absorb more of this risk. To facilitate this allocation of prepayment risk, CMOs are structured such that prepayments are allocated between bonds using a fixed set of rules. The most common schemes for prepayment tranching are described below.Sequential tranching (or by time)
All of the available principal payments go to the first sequential tranche, until its balance is decremented to zero, then to the second, and so on. There are several reasons that this type of tranching would be done:- The tranches could be expected to mature at very different times and therefore would have different yieldYield (finance)In finance, the term yield describes the amount in cash that returns to the owners of a security. Normally it does not include the price variations, at the difference of the total return...
s that correspond to different points on the yield curveYield curveIn finance, the yield curve is the relation between the interest rate and the time to maturity, known as the "term", of the debt for a given borrower in a given currency. For example, the U.S. dollar interest rates paid on U.S...
. - The underlying mortgages could have a great deal of uncertainty as to when the principal will actually be received since home owners have the option to make their scheduled payments or to pay their loan off early at any time. The sequential tranches each have much less uncertainty.
Parallel tranching
This simply means tranches that pay down pro rata. The coupons on the tranches would be set so that in aggregate the tranches pay the same amount of interest as the underlying mortgages. The tranches could be either fixed rate or floating rate. If they have floating coupons, they would have a formula that make their total interest equal to the collateral interest. For example, with collateral that pays a coupon of 8%, you could have two tranches that each have half of the principal, one being a floater that pays LIBORLondon Interbank Offered Rate
The LIBOR rate is the average interest rate that leading banks in London charge when lending to other banks. It is an acronym for London Interbank Offered Rate Banks borrow money for one day, one month, two months, six months, one year etc. and they pay interest to their lenders based on...
with a cap of 16%, the other being an inverse floater that pays a coupon of 16% minus LIBOR.
- A special case of parallel tranching is known as the IO/PO split. IO and PO refer to Interest Only and Principal Only. In this case, one tranche would have a coupon of zero (meaning that it would get no interest at all) and the other would get all of the interest. These bonds could be used to speculate on prepayments. A principal only bond would be sold at a deep discount (a much lower price than the underlying mortgage) and would rise in price rapidly if many of the underlying mortgages were prepaid. The interest only bond would be very profitable if few of the mortgages prepaid, but could get very little money if many mortgages prepaid.
Z bonds
This type of tranche supports other tranches by not receiving an interest payment. The interest payment that would have accrued to the Z tranche is used to pay off the principal of other bonds, and the principal of the Z tranche increases. The Z tranche starts receiving interest and principal payments only after the other tranches in the CMO have been fully paid. This type of tranche is often used to customize sequential tranches, or VADM tranches.Schedule bonds (also called PAC or TAC bonds)
This type of tranching has a bond (often called a PAC or TAC bond) which has even less uncertainty than a sequential bond by receiving prepayments according to a defined schedule. The schedule is maintained by using support bonds (also called companion bonds) that absorb the excess prepayments.- Planned Amortization Class (PAC) bonds have a principal payment rate determined by two different prepayment rates, which together form a band (also called a collar). Early in the life of the CMO, the prepayment at the lower PSAPSA prepayment modelPSA Prepayment Model is a prepayment model by the Bond Market Association formerly known as Public Securities Association or PSA that assumes increasing prepayment rates for the first 30 months of the lifetime and constant rates thereafter...
will yield a lower prepayment. Later in the life, the principal in the higher PSA will have declined enough that it will yield a lower prepayment. The PAC tranche will receive whichever rate is lower, so it will change prepayment at one PSA for the first part of its life, then switch to the other rate. The ability to stay on this schedule is maintained by a support bond, which absorbs excess prepayments, and will receive less prepayments to prevent extension of average life. However, the PAC is only protected from extension to the amount that prepayments are made on the underlying MBSs. When the principal of that bond is exhausted, the CMO is referred to as a "busted PAC", or "busted collar". - Target Amortization Class (TAC) bonds are similar to PAC bonds, but they do not provide protection against extension of average life. The schedule of principal payments is created by using just a single PSA.
Very accurately defined maturity (VADM) bonds
Very accurately defined maturity (VADM) bonds are similar to PAC bonds in that they protect against both extension and contraction risk, but their payments are supported in a different way. Instead of a support bond, they are supported by accretion of a Z bond. Because of this, a VADM tranche will receive the scheduled prepayments even if no prepayments are made on the underlying.Non-accelerating senior (NAS)
NAS bonds are designed to protect investors from volatility and negative convexity resulting from prepayments. NAS tranches of bonds are fully protected from prepayments for a specified period, after which time prepayments are allocated to the tranche using a specified step down formula. For example, an NAS bond might be protected from prepayments for five years, and then would receive 10% of the prepayments for the first month, then 20%, and so on. Recently, issuers have added features to accelerate the proportion of prepayments flowing to the NAS class of bond in order to create shorter bonds and reduce extension risk. NAS tranches are usually found in deals that also contain short sequentials, Z-bonds, and credit subordination.A NAS tranche receives principal payments according to a schedule which shows for a given month the share of pro rata principal that must be distributed to the NAS tranche.
NASquential
NASquentials were introduced in mid 2005 and represented an innovative structural twist, combining the standard NAS (Non-Accelerated Senior) and Sequential structures. Similar to a sequential structure, the NASquentials are tranched sequentially, however, each tranche has a NAS-like hard lockout date associated with it. Unlike with a NAS, no shifting interest mechanism is employed after the initial lockout date. The resulting bonds offer superior stability versus regular sequentials, and yield pickup versus PACs. The support-like cashflows falling out on the other side of NASquentials are sometimes referred to as RUSquentials (Relatively Unstable Sequentials).Coupon tranching
The coupon stream from the mortgage collateral can also be restructured (analogous to the way the principal stream is structured). This coupon stream allocation is performed after prepayment tranching is complete. If the coupon tranching is done on the collateral without any prepayment tranching, then the resulting tranches are called 'strips'. The benefit is that the resulting CMO tranches can be targeted to very different sets of investors. In general, coupon tranching will produce a pair (or set) of complementary CMO tranches.IO/discount fixed rate pair
A fixed rate CMO tranche can be further restructured in to an Interest Only (IO) tranche and a discount coupon fixed rate tranche. An IO pays a coupon only based on a notional principal, it receives no principal payments from amortization or prepayments. Notional principal does not have any cash flows but shadows the principal changes of the original tranche, and it is this principal off which the coupon is calculated. For example a $100mm PAC tranche off 6% collateral with a 6% coupon ('6 off 6' or '6-squared') can be cut into a $100mm PAC tranche with a 5% coupon (and hence a lower dollar price) called a '5 off 6', and a PAC IO tranche with a notional principal of $16.666667mm and paying a 6% coupon. Note the resulting notional principle of the IO is less than the original principal. Using the example, the IO is created by taking 1% of coupon off the 6% original coupon gives an IO of 1% coupon off $100mm notional principal, but this is by convention 'normalized' to a 6% coupon (as the collateral was originally 6% coupon) by reducing the notional principal to $16.666667mm ($100mm / 6).PO/premium fixed rate pair
Similarly if a fixed rate CMO tranche coupon is desired to be increased, then principal can be removed to form a Principal Only (PO) class and a premium fixed rate tranche. A PO pays no coupon, but receives principal payments from amortization and prepayments. For example a $100mm sequential (SEQ) tranche off 6% collateral with a 6% coupon ('6 off 6') can be cut into an $92.307692mm SEQ tranche with a 6.5% coupon (and hence a higher dollar price) called a '6.5 off 6', and a SEQ PO tranche with a principal of $7.692308mm and paying a no coupon. The principal of the premium SEQ is calculated as (6 / 6.5) * $100mm, the principal of the PO is calculated as balance from $100mm.IO/PO pair
The simplest coupon tranching is to allocate the coupon stream to an IO, and the principal stream to a PO. This is generally only done on the whole collateral without any prepayment tranching, and generates strip IOs and strip POs. In particular FNMA and FHLMC both have extensive strip IO/PO programs (aka Trusts IO/PO or SMBS) which generate very large, liquid strip IO/PO deals at regular intervals.Floater/inverse pair
The construction of CMO Floaters is the most effective means of getting additional market liquidity for CMOs. CMO floaters have a coupon that moves in line with a given index (usually 1 month LIBOR) plus a spread, and is thus seen as a relatively safe investment even though the term of the security may change. One feature of CMO floaters that is somewhat unusual is that they have a coupon cap, usually set well out of the money (e.g. 8% when LIBOR is 5%) In creating a CMO floater, a CMO Inverse is generated. The CMO inverse is a more complicated instrument to hedge and analyse, and is usually sold to sophisticated investors.The construction of a floater/inverse can be seen in two stages. The first stage is to synthetically raise the effective coupon to the target floater cap, in the same way as done for the PO/Premium fixed rate pair. As an example using $100mm 6% collateral, targeting an 8% cap, we generate $25mm of PO and $75mm of '8 off 6'. The next stage is to cut up the premium coupon into a floater and inverse coupon, where the floater is a linear function of the index, with unit slope and a given offset or spread. In the example, the 8% coupon of the '8 off 6' is cut into a floater coupon of:
1 * LIBOR + 0.40%
(indicating a 0.40%, or 40bps, spread in this example)
The inverse formula is simply the difference of the original premium fixed rate coupon less the floater formula. In the example:
8% - (1 * LIBOR + 0.40%) = 7.60% - 1 * LIBOR
The floater coupon is allocated to the premium fixed rate tranche principal, in the example the $75mm '8 off 6', giving the floater tranche of '$75mm 8% cap + 40bps LIBOR SEQ floater'. The floater will pay LIBOR + 0.40% each month on an original balance of $75mm, subject to a coupon cap of 8%.
The inverse coupon is to be allocated to the PO principal, but has been generated of the notional principal of the premium fixed rate tranche (in the example the PO principal is $25mm but the inverse coupon is notionalized off $75mm). Therefore the inverse coupon is 're-notionalized' to the smaller principal amount, in the example this is done by multiplying the coupon by ($75mm /$25mm) = 3. Therefore the resulting coupon is:
3 * (7.60% - 1 * LIBOR) = 22.8% - 3 * LIBOR
In the example the inverse generated is a '$25mm 3 times levered 7.6 strike LIBOR SEQ inverse'.