I've got a couple grand in an HSA. There's a minimum that must remain in my HSA that I can't invest, and they recommend that you keep at least your annual deductible in cash in your HSA (which makes sense). So, we're talking *maybe* a couple grand of investment @ .08% cost monthly.
Even with great returns we're not talking anything close to $100. It isn't worth my time (or a financial planner's time) to invest anything in the question. That's why you bring it to CB. You get a quick and dirty answer that suits the purpose.
You're crazy if you think I'm going to find a financial planner so I can get an answer on investing $2k in a managed fund.