The derivatives markets in the Asian region have shown significant growth and development since their inception. Similarly, derivatives market in Malaysia and Bursa Malaysia Derivatives have experienced remarkable changes and developments. This study focuses mainly on the stock index futures contract (FKLI) and its relationship with the underlying spot index (FBM KLCI). The FKLI is chosen instead of other permissible futures due to availability of the data and its relevance in the context of fund managers' asset allocation strategy. The FKLI is chosen instead of other permissible futures due to availability of the data and its relevance in the context of fund managers’ asset allocation strategy. Mainly based on intraday data, this study makes an analysis of issues on pricing efficiency, the expiration-day effects on volume and volatility, the lead lag relationship between stock index and stock index futures, in Malaysian derivatives market as a newly advanced emerging market. Based on the underlying assumption that if a mispricing were to arise, unlimited arbitrage trading would trigger the market price back to its theoretical fair value and hedging effectiveness may go down as a result of pricing inefficiency, the first essay investigates the study of pricing efficiency specifically on the extent of mispricing by contract, evolution of mispricing, and mispricing episodes. Daily data based on the cost-of-carry model and 15-minute intraday data based on the basis model are used to address the issue of pricing efficiency. This essay fills the gap by introducing 15-minute intraday data, in addition to a larger time span of daily data. The results show variations in mispricing over time under study and provide valuable information for policymakers and fund managers as the Malaysia markets become more efficient and seem to provide a better avenue to hedge their positions and protect their investment values.