Research — June 28, 2026
SpaceX and the Power of Intraday Data
The Value of Live Data in Understanding Post-IPO Securities Financing.
Source: S&P Global Market Intelligence Securities Finance Data
© 2026 S&P Global Market Intelligence
SpaceX (SPCX) began trading on the Nasdaq on June 12, 2026, in what has been described as one of the largest initial public offerings in history. The securities financing markets responded with substantial lending activity in the days following the IPO, and intraday data provides a unique window into how this activity unfolded in near real-time.
Analysis of securities lending data for SpaceX from June 15 to June 22, 2026, demonstrates the significant advantage of live, intraday reporting over traditional end-of-day data. During this period, the stock traded at prices ranging from $185.00 to $201.80, and the quantity of shares on loan grew from approximately 15,500 shares to over 36 million shares.
The First Days of Lending Activity
On June 15, 2026, lending activity commenced modestly with 15,500 shares reported on loan at noon. By the end of that trading day, the live quantity on loan had grown to 9.79 million shares. This represented a 631-fold increase within a single trading session, a level of activity that traditional end-of-day reporting would capture only as a single snapshot.
June 16 saw continued growth, with the live quantity on loan reaching 14.46 million shares at its intraday peak before settling at 14.15 million by close. The following day, June 17, marked the first appearance of comparative end-of-day data (reflecting positions as of June 15), which showed 16.04 million shares. However, the live intraday figure had already reached 26.26 million shares, a 64% higher reading than the lagged end of day data would indicate.
The Divergence Between Live and End-of-Day Data
Source: S&P Global Market Intelligence Securities Finance Data
© 2026 S&P Global Market Intelligence
This graph illustrates the distinction between intraday quantity on loan and end of day quantity on loan. This comparison reveals a consistent pattern: the intraday data captures market activity that end-of-day figures do not reflect until the settlement cycle completes. Having this additional level of detail shows a clearer picture of market activity and offers an extra level of transparency to market participants.
Implications for Market Practitioners
The SpaceX IPO provides a practical example of why intraday securities lending data matters. Fund managers, securities lenders, and risk teams all benefit from understanding current market conditions as they prevail.
During periods of heightened activity, such as the days following a major IPO, the gap between intraday and settlement data can be substantial. The SpaceX data shows differences ranging from 2.75 million to over 11 million shares between the two measures.
For market participants assessing borrowing costs, availability, or short interest, reliance on end-of-day data alone, in this instances, would provide an incomplete picture. The live data captured intraday fluctuations, such as the peak of 14.46 million shares on June 16 at 17:00, which settled lower at 14.15 million by close, a detail invisible to those viewing only end-of-day snapshots.
Conclusion
The securities financing activity surrounding the SpaceX IPO illustrates the value of real-time data transparency. Intraday reporting enables market participants to observe lending activity as it develops, rather than waiting for end-of-day settled figures. As new issues enter the market and trading activity intensifies, the distinction between these data sources can be material for a broad range of market participants.