The RMT test, formulated by one of the authors as a tool for labeling big data by means of randomness, is applied on the real-data of price fluctuation recorded by each second in Tokyo market. It is suggested that a sudden deterioration of randomness level of the tickwise price fluctuation predicts a future decline of the market price, based on the example found in analyzing tick data of the TOPIX index.
Keywords
- Big data
- RMT test
- Randomness
- Price fluctuation
- Prediction