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A fractional share is a fraction of a whole share. Companies issue whole units of stocks, called shares, which are then traded on the public market for investors to buy. If you buy a fractional share, that means you're buying a piece of a company's stock.

Whereas a single share in a company might cost USD 1,000, fractional shares mean you can still invest in a company with USD 10 or USD 100.

You'll need to invest at least USD 1 for US securities and EUR 1 for EU securities. The minimum amount of shares you can buy is 0.00000001.

Currently, you cannot submit fractional shares for limit orders.