SAP total stock value is zero

Hello experts,

The total stock value for finished material is showing zero in MB5l report though it has some stock quantity.I did GR for production order with stock type Q( project stock).In production order cost analysis report i could see the COGM value is zero.I have checked the standard cost estimate was successfully executed for the material and price got updated in material master.

So could anyone tell me why the total value is not showing up in production order cost analysis report.