My husband has an HSA through his employer (I'm a SAHM). So far it's just in a savings account, and we decided this year not to touch it but use it as another retirement savings vehicle. The balance is about $4000 but we'll have over $10,000 by the end of the year.
His 401K (our only other investment) is 100% in a Vanguard U.S. large cap stock index fund (VINIX). The balance is only about $218,000 but just this year he started contributing the max ($24,000 since he's over 50). We should be on track for him to retire in ten years.
In light of that, I'm wondering if we should keep the HSA in the savings account or something similarly "safe." Any thoughts or advice? Thanks!