Four people familiar with the company's thinking said that Elon Musk's SpaceX is leaning towards a Nasdaq listing. SpaceX hopes to be included in the Nasdaq 100 index as soon as possible, which is considered a prerequisite for listing on the exchange. Previous reports indicated that SpaceX was planning an IPO, possibly as early as June. Sources said the New York Stock Exchange is also vying for the listing, and neither exchange has yet been informed of a final decision. Last month, Nasdaq proposed a new rule that could expedite the inclusion of newly listed large companies in the Nasdaq 100 index. Under the "fast-track inclusion" rule, if a new company's market capitalization ranks among the top 40 existing constituents of the index, it could qualify for accelerated inclusion less than a month after listing. The proposed changes are not yet finalized and could take several months to take effect. Sources indicated that SpaceX is seeking a valuation of approximately $1.75 trillion in its IPO, which, based on the latest share price, would make it the sixth-largest company by market capitalization in the United States. (Reuters)