Hi, some loan officers subscribe to paid services that claim to give “market information” that they can pass along to their clients on when to lock. This gives the illusion that they know something that you don’t know, so that you stay with them and they seem authoritative. As you’ll see in the main lock section, no one can predict the future of rates, so if you have a rate that is good, it is really the terms that dictate whether you should lock or not. If you lock, can you take advantage of an even lower rate if the rates fall? What is the cost of the lock for different durations, etc.? The devil is in the details.