Interactive Brokers can, at its discretion, remove any stock from the list of stocks eligible for fractional trading:
- Once a stock is removed from the list, no new positions can be opened.
- Interactive Brokers will close existing positions in stocks not eligible for fractional trading. This will occur on 21st day, or as soon as practically possible after that, after the end of the quarter in which the stock became ineligible to trade in fractions.
Additional Information: