Non-supportive boss downplays my contribution, though CIO supports career growth

Currently a research analyst at a very small shop running one equity strategy in a LCOL city in the US. I have been here for 6 months (after couple years in EQR). Even though this is a long-only AM, I am pulling very long hours (7.30 AM - midnight, though I don't work much on the weekends).

My boss likes to make me run around, chasing way too many companies and I barely get any rest or chance to do my own independent work. Plus, he seems to be very territorial. Just in my annual review, he (in front of our CIO) tried to downplay my contribution (basically said I have been helping out on Sector X while completely removing any mention of all the other work in other sectors). I did try to correct him during the session in a non-confrontational way but it was clear that he was being very territorial.

Talking to the CIO, I feel they want me to succeed here and move up the ladder but my own boss is mostly just interested in using me for his own personal gain in the short term, just have me here to do the crap work without any career progression.

Any advice is welcomed on how to deal with this dynamic? Under any normal situation, I would have asked for a bit more responsibility and independence but given how treacherous this market has been in 2022, I've tried my best to keep everyone happy and not try to shake the tree too much.

TLDR: My boss is not interested in my career growth and downplays my contributions. He is very territorial but my CIO is supportive. What should I do?