Although neural networks possess the properties required for technical financial forecasting, they cannot be used to explain the causal relationship between input and output variables because of their black box nature. Neuro-fuzzy hybridization synergizes neural networks and fuzzy systems by combining the human-like reasoning style of fuzzy systems with the learning and connectionist structure of neural networks. Neuro-fuzzy hybridization is widely termed as fuzzy neural networks (FNNs) or neuro-fuzzy systems (NFSs) in the literature [27]. NFSs incorporates the human-like reasoning style of fuzzy systems through the use of fuzzy sets and a linguistic model consisting of a set of IF–THEN fuzzy rules. Thus the main strength of NFSs is that they are universal approximators [28]–[30] with the ability to solicit interpretable IF–THEN rules [31]. In recent years, increasing number of research applied NFSs in financial engineering [32]. Someworks that applied NFSs in forecasting stock price are [8], [21], [33]–[35].