Why Is Locking Unique to Mortgages?
August 6, 2001, Revised November 13, 2006, November 12, 2008
"I am an economist, puzzled by the phenomena of "locking". None of the
markets I have studied have anything like it. Can you explain the
economics of locking in one lesson?"
What It Means to "Lock" a Mortgage
When lenders "lock", they commit to lend at a specified interest rate
and points, provided the loan is closed within a specified "lock
period". (Points are an upfront charge expressed as a percent of the
loan amount). For example, a lender agrees to lock a 30-year fixed-rate
mortgage of $200,000 at 7.5% and 1 point for 30 days. A lock is
contingent on the borrower meeting the lender’s underwriting
requirements for the loan.
Why Locking is Needed
The need for locking arises out of two special features of the home loan
market: volatility and process delays. Volatility means that rates and
points are reset each day, and sometimes within the day. Process delays
refer to the lag between the time when the terms of the loan are
negotiated, and the time when the loan is closed and funds disbursed.
If prices are stable, locking isn’t needed even if there are process
delays. If there are no process delays, locking isn’t needed even if
prices are volatile. It is the combination of volatility and process
delays that creates the need for locking.
For example, Smith is shopping for a loan on June 5 for a house purchase
scheduled to close July 15. Smith is comfortable with the rates and
points quoted on June 5, but a rate increase of 1/2% within the
following 40 days could make the house unaffordable, and Smith doesn’t
want to take that risk. Smith wants a lock, and lenders competing for
Smith’s loan will offer it.
Why It Costs Lenders to Lock
If locks were equally binding on lender and borrower, locks would not
cost the borrower anything. While lenders would lose when interest rates
rose during the lock period, they would profit when interest rates fell.
Over a large number of customers they would break even.
In reality, however, borrowers are not as committed as lenders. The
number of deals that don’t close, known as "fallout", increases during
periods of falling rates, when borrowers find they can do better by
starting the process anew with another lender. Fallout declines during
periods of rising rates.
This means that locking imposes a cost on lenders, which they in turn
pass on to borrowers. The cost is included in the points quoted to
borrowers, which are higher for longer lock periods. The lender who
quoted 7.5% and 1 point for a 30-day lock, for example, might charge
1.125-1.25 points for a 60-day lock.
Controlling Lock Costs
Years ago, lenders controlled lock costs by requiring borrowers to pay a
commitment fee in cash. The fee was returned to them at closing but
forfeited if they walked from the deal. But today, commitment fees have
mostly died out. Borrowers don’t like them, and lenders and mortgage
brokers don’t want to place themselves at a disadvantage in competing
for customers.
To control lock costs today, many lenders refuse to lock until borrowers
demonstrate commitment to the deal by completing one or more critical
steps in the lending process. For example, one lender recently explained
its lock policy to its mortgage brokers as follows:
Our loans are well priced, but we only commit to you when you commit to
us. To lock, you must submit the completed lock form, application
(original, no copies allowed), credit report, appraisal, and either a
purchase agreement or escrow instructions.
The logic of this lender’s policy is that its procedural requirements
reduce fallout costs, allowing it to offer lower prices. Lenders who
make it easy to lock have large fallout costs because some shoppers will
lock with them as protection against a rate increase while they continue
to shop for a better deal elsewhere.
Implications For Borrower Shopping
While the best (honest) quote is likely to be from a lender who requires
extensive documentation to lock, these requirements impede effective
shopping. For example, if the shopper identifies the lender offering the
best deal but it takes 3 days to lock with that lender, the shopper is
in limbo for 3 days. He has to hope that market rates don’t increase
during the period, and if they do that the lender doesn’t pad the
increase.
A mortgage shopper thus needs to know what each lender requires to lock,
and how quickly the process can be completed if the shopper does her
part. A good mortgage broker can help enormously. Brokers know lender
lock requirements, can help expedite the process, and will keep the
lender honest if the market changes during the lock process.