Aspectual Compresence

Some properties come necessarily clustered. Something, a clustering device, must necessarily keep them clustered. Compresence is one candidate, and it is unclear how to understand it. I discern two aspects of it: compresence as simultaneity and compresence as co-location. Then I clarify certain issues over it, particularly regarding whether or not it is transitive and whether or not it figures in the bundle. Contrary to popular belief, I argue that compresence, under the two-aspectual reading, is transitive and constitutive of the bundle.