Can I leave 6 months in?

Monkeys,

I need some advice. I have the opportunity to leave my current role as a credit analyst at a commercial bank to join a boutique AM firm focused on debt. The only problem is that I've only been working in my current role for 6 months. I like my current job, but I think that jumping to AM would benefit my career trajectory and provide better opportunities when it comes time for B-School. I also don't plan on being a career commercial banker so I will likely leave in 2-3 years regardless.

Is it bad to leave so early if I'm clearly leaving for a better job? I feel like that would be relatively easy to explain to future employers but I could be wrong. I also realize that if I do take this job I would pretty much have to stay for at least 2 years no matter what. Again, I like my current job so there is a level of risk that if I don't like my new role I would be stuck.

Any opinions or advice would be much appreciated.

Thanks.