A "lot" refers to a standardized quantity of shares/products. The most common lot size is 100 shares, known as a "round lot". Smaller quantities, such as 1 to 99 shares (if the lot size is 100 shares), are referred to as "odd lots." Some markets or brokers may have different definitions or standards for what constitutes a lot, especially in the context of different asset classes like options or futures.
On Saxo platform, you can see the Lot size in Trading conditions:
Typically it is required to trade at least 1 lot and round lots with some exchanges.
If you have odd lots, for example by receiving 50 shares as dividends (less than one lot), and you want to sell it, you may not be able to do so from the platform. Please contact us for manual handling.