If you are looking for a report that can give you a simple view of on-hand and some options for how you show on-hand over a period of time then the inventory by item group aging report might be something that can help. It will allow you to set date buckets so you can see the on-hand balances relevant to those buckets. You can run it by item or item group. So this could be helpful when looking at setting minimums for example you can see some history.
As well you can look at it as value or quantity.
Here is a quick overview.
AX2012 R3 CU11