My investment portfolio using fidelity is 100% VT in my taxable brokerage, 100% FXAIX in my Roth IRA, and 100% VINIX in my 403b. Is there anything that you would change or would have done differently? Some things I was considering is splitting my 403b contributions to a target retirement date fund, and/or splitting my Roth IRA contributions to VT as well.