There are situations where the value placed on a business appears to be substantially removed from its intrinsic value. SpaceX may be a useful case in point, not because the business lacks quality or ambition, but because the investment case seems to depend heavily on what the business may become, rather than what it is currently producing in cash flows.
The first question is not whether the price is high. The first question is how far, if at all, the price is removed from intrinsic value. Intrinsic value is ultimately driven by future cash flows. That means the analysis has to work backwards from the current valuation and ask what level of future revenue, margins, reinvestment, growth and cash generation would be required to justify the price.
In the case of SpaceX, reported valuation levels have implied very high revenue multiples, with Reuters reporting a targeted valuation of about $1.75 trillion against 2025 revenue of approximately $18.67 billion, a trailing price-to-revenue multiple of about 93.7 times. That is before even focusing on profitability and free cash flow. On that basis, the investor is not primarily buying current earnings. The investor is buying a vision of substantial future dominance, expansion and optionality.
That does not automatically make the investment irrational. Some companies with enormous long-term growth potential may look expensive for many years before the fundamentals catch up. The key issue is whether the assumptions required to support the current price are realistic. When will the cash flows be generated? How much of today’s value depends on cash flows that may only arise far into the future? What are the drivers of that long-term growth? And how probable is it that those drivers will materialise at the required scale?
Once it is established that the price is materially ahead of intrinsic value, the next question is how long it would take for earnings and cash generation to catch up if the share price remained static. If it would take many years, then the investor needs to accept that, during that period, the return is not coming from distributable cash flows or current earnings. It is coming from continued confidence that future growth assumptions can keep being rolled forward.
That is where the sanity check becomes important. A share price can continue to rise even when it is removed from current fundamentals, provided the market remains convinced that the long-term opportunity is expanding. But if the vision weakens, or if the growth path becomes less credible, there may be no fundamental support for the price at that level.
In the end, there are two possible ways for the gap to close. Either the fundamentals catch up to the price through exceptional growth and cash generation, or the price corrects downward when the market decides that the original expectations were too aggressive. The purpose of the valuation sanity check is not to dismiss the vision. It is to measure how much of the investment case depends on it — and whether that dependence is still reasonable.