如何 lock rate?

房子9月底10月初close，我应该现在选择银行的120天lock period rate 6.875%，或是等到9月初选择30天lock period rate ???. 根据现在的情况，4个月后30-year fixed 有可能涨到 > 6.875% 吗？

所有跟帖： 

• You don't have to lock rate now -CaLoanAgent- ♂ (240 bytes) () 06/13/2008 postreply 20:46:58

• How comes if the inflation keep rising? -maque- ♂ (71 bytes) () 06/13/2008 postreply 21:43:02