Few bits and pieces concerning Voldo Punishment
1 - There's really not a lot, Voldo's a pretty damn safe, mixup oriented character. Sure his lows are punishable like most, but if you're blocking BS 1a and 11K, he's doing something wrong.
2 - BCR B, a very common combo start voldo's will do, is -16. Voldo's WR B is hella unsafe, his 3A should be AA punishable, if not -15 punishable(Cassandra's 6B, an i15 with decent range, punishes it)
3 - stepping Voldo and making him whiff will get you more punishment then relying on blocked moves from him. he's a very linear character, it's just his move set and mixups are so threatening a lot of players fail to recognize this.
4 - 66:B, the big scary 75+ dmg Voldo punisher, is i16. This is the unsafe number you have to be really careful of giving Voldo. punishes from decent range, mid, NH stun, etc. Least it's not i14 like the sisters, or worse, Sets. His normal 66B is i15, for some odd reason.
5 - Voldo, from BS, has an i11 A, the single a does kill step both ways, leaves him at advantage, and is one of his best step killers(22A is great too, but unsafe), though the range is pretty bad. Many people do not know Voldo has an i11. Careful.
Rest I'm sure can be found in his frames thread. Just don't expect a lot, he's pretty safe.