Let's say my employer offers a 401(k). In general, this means I can only pick from a basket of funds to invest in.
I prefer self directing my investments, and my broker offers a no-fee solo 401k.
I understand that contributions to a solo 401k are only intended to come from self-employment, which I do from time to time, so I am eligible to have such an account. This question is not about contributions.
Rather, can I move/transfer my current employer 401(k) balance to a self directed solo 401k while still remaining employed by them? Legalese aside, this is essentially a balance transfer, and I most likely will continue contributing to the employer 401(k).
But, all of the literature I can find online about this is related to "previous" employers and converting to IRAs.