Trading bots are available in a variety of forms and sizes. One bot may simply buy and "hodl," while other bots may execute many daily transactions. One subset of algorithmic trading is so-called High-Frequency Trading. These bots make tiny profits in milliseconds to microseconds. You may wonder if it is worth it, considering they only make small profits. However, if a bot performs this a thousand times each day, these profits can grow significantly. Another subset is Low-Frequency Trading bots that trade over longer periods and fewer times. They might still be based on sophisticated algorithms that consider a variety of factors and indicators before entering or exiting a position. They may, however, be also built on strategies humans could follow without bots.