Yeah, this bank doesnt do a float with the no cost option.
so everyone is aware...CloneGuy8's 3.5% with no costs and your comment about no floating looks like this to a bank...
3.5% might pay the bank 190 bps (basis points), which is the loan amount x .019. (That 190 a fairly accurate estimate based on yesterday's rates). That's the Service Release Premium that is paid to the bank to sell the loan to their investor. So based on that information, they know they can cover your costs and make a little money. If the bank ends up servicing the loan, they may not make an SRP so they have to account for what they'll earn in servicing the loan.
Presently, most servicers sell their loans to Fannie/Freddie at a loss in order to remain competitive. Instead, they count on having the loan in their portfolio for years to come...usually the break even is around 2-2.5 years. Then, they get paid by the GSE for servicing.
The reason they don't float that no cost piece is because they know their costs fairly well...so if they allow you to float, their srp payment and relative revenue can change based on the market conditions.
When you lock your loan, they take "coverage" and commit to selling your loan along with a certain amount of other loans. That 3.5% loan will be in a traunch that requires them to deliver that loan or pay a pair off fee. So if they are a seller/servicer, they have a mandatory delivery which means they want to ensure you are committed to the process...again, why they won't allow you to float.
Don't get greedy in a market like this. The difference in rates/payments is minimal at some point and just getting something that moves your payment considerably is key.
Not sure on CloneGuy8's loan amount but here's how it looks for PI on some rates at $175k on a 30-year, just to show you how tight the payment's are within an eighth.
Be careful playing the float game in this environment. The 10-year and spike quickly and rates can be quickly out of market to be beneficial for most people.
175,000 @ 4.25% = $860 PI
175,000 @ 3.25% = $761 PI
175,000 @ 3.375% = $773 PI
175,000 @ 3.5% = $785 PI
175,000 @ 3.625% = $798 PI
175,000 @ 3.75% = $810 PI