May have a problem with Ally. This is from their site:
Pricing information for low-priced securities We require a minimum opening purchase of $100 per order on OTCBB and Pink Sheet stocks. We don’t charge commissions for stocks and ETFs priced $2 and higher. Low-priced securities are charged a $4.95 base commission plus one cent per share on the entire order. We define a low-priced security as any equity below $2.00. In general, the maximum commission charge doesn’t exceed 5% of the value of the trade. If the principal value of the order is less than the base, the commission is equal to the full trade value.