What are some good ways to raytrace skinned meshes?

Hey all, so I'm using an octree to raytrace meshes at the moment and it's working out nicely, but now I'm wondering how to apply it to skinned meshes.

Does it make sense to store the octree structure for every frame on disk, or possibly just compressed deltas? I'm thinking that could add up.

I'm hoping I don't have to generate it in realtime, it may be possible but that would take up some valuable compute time per frame.

Are there any techniques people here use or have heard about that could work?