I have the following formula: =IF(ISNUMBER(MATCH(B2,'1 31 07 FAS sheet
1'!$AG$2:$AG$65536,0)),"Matched",IF(ISNUMBER(MATCH (B2,'1 31 07 FAS sheet
2'!$AG$4:$AG$58232,0)),"Matched","Unmatched"))

If I manipulate other data outside the ranges in the above formula, the
whole workbook recalculates. I've never seen MATCH referred to as volatile.

Thoughts?
--
Brevity is the soul of wit.