There is provided a prediction device that analyzes a chart image indicating price fluctuations of a financial instrument and predicts a future price of the financial instrument, the prediction device including an image acquiring unit that acquires a prediction target image to be a prediction target of the future price, an outputting unit that inputs the prediction target image to a learned model and outputs type data serving as a type of a chart included in the prediction target image from the learned model, and a predicting unit that outputs a predicted value of the future price based on a price after a lapse of a predetermined period from the type data.