Just released SpaceX's prospectus revealing its holdings of 18712 BTC, with an average cost of $35000 and a total cost of approximately $655 million, now valued at $1.45 billion. Elon Musk stated in July 2021 that SpaceX holds BTC. On chain data shows that in early 2021, multiple large purchases were made through channels such as Coinbase, with single transactions often at the level of 1000+BTC. At most, it is speculated that nearly 28000 BTC may have been bought. But later on, the Luna Thunder market went bear, and SpaceX should have sold most of the BTC, but did not clear the position, and the remaining has been held until now. The disclosure before this IPO is quite meaningful. We pay attention to BTC and the data on the chain, but the vast majority of outsiders are unaware of it. After all, SpaceX is now a globally recognized behemoth, and being able to hold BTC to this day indicates that it is an important part of the balance sheet rather than a peripheral asset. This reinforces the narrative of 'BTC as a corporate treasury asset', especially when compared to MicroStrategy and others. Although the holding size is relatively small compared to SpaceX's huge valuation (target of $1.75T+), it has strong symbolic significance - recognizing the long-term potential of BTC.