Start with the matching loan type
Conventional, jumbo, FHA, VA, USDA, and 15-year loans can move differently. Compare the index closest to the program you are considering.
LenderCity Mortgage Market Indices
See where locked mortgage rates are moving.
Mortgage rate indices show national market direction based on observed rate-lock activity. They are useful context, but they are not your personal quote. Your actual rate depends on the loan, property, credit, points, and lock period.
Compare rates for my scenarioPowered by Optimal Blue
The live national rate-lock picture.
Choose a loan type, credit band, or loan-to-value range inside the index to see how market pricing differs.
Market data and widget provided by Optimal Blue. Optimal Blue describes OBMMI as observed mortgage rate-lock data aggregated daily and updated nightly. Displayed separately from personalized LenderCity offers.
How to read it
Use the index as a compass, not a quote.
Look at direction and range
A daily move tells you what changed in the broader market. A 30-day range shows whether today is near the recent high, low, or middle.
Then price your actual loan
Your property, credit, loan amount, equity, points, and lock period turn national context into a real offer. That is where Lenny compares the tradeoff.
Index vs. matched offer
Same market. Different questions.
Mortgage rate indexMatched mortgage offer
National market directionPricing for one completed scenario
Observed rate-lock activityRate, APR, payment, fees, and credits
Useful for timing contextUseful for choosing between available offers
Questions worth asking
What the index can and cannot tell you.
What is a mortgage rate index?
A mortgage rate index summarizes rate activity across many loans to show market direction. It is a national reference point, not a quote for one borrower or property.
Are the LenderCity Mortgage Market Indices my mortgage rate?
No. Your available rate can differ based on loan purpose, program, credit profile, property, loan amount, loan-to-value ratio, points, and lock period. Use the indices for context and matched offers for a personal comparison.
Why can my quote be higher or lower than the index?
The index blends observed rate-lock activity across the market. Your quote reflects the specific risk, program, costs, credits, and timing attached to your loan.
How often are the Optimal Blue mortgage market indices updated?
Optimal Blue says its mortgage market indices are aggregated daily and updated nightly with the previous business day's rate-lock activity, excluding weekends and market holidays.
Should I wait for the mortgage rate index to fall before locking?
An index can show direction, but it cannot predict the best lock day for your loan. Compare the payment, upfront lender cost, timeline, closing date, and risk of waiting before deciding with a licensed mortgage professional.
Now make it personal
Compare matched rates See the offers available for your numbers.
No name, email, or phone number is required to run the comparison.