This just means that you need cash or collateral to buy the shares, and they won't let you use leverage to buy it. This is very reasonable given the huge volat

This just means that you need cash or collateral to buy the shares, and they won't let you use leverage to buy it. This is very reasonable given the huge volatility on this stock. The price could very easily totally collapse, and IB would be left holding the bag if it's allowing margin purchases.