RE: Defence Spending9 Jan 2026 12:11
JDS15,
You’re not a simpleton at all — you’re noticing a very real inconsistency that comes up all the time in markets. The short answer is: people are often talking past each other about why a P/E is high, not just that it is high.
Let’s break it down cleanly.
1. P/E is not “high” or “low” in isolation
A P/E ratio only makes sense relative to expectations:
P/E
≈
Growth
+
Stability
+
Risk
+
Capital intensity
P/E≈Growth+Stability+Risk+Capital intensity
So two stocks can have wildly different P/Es and both be rationally priced — or irrationally priced — for different reasons.
2. Why people tolerate huge P/Es in Nvidia & tech
High-growth tech stocks (like Nvidia) are often valued on future earnings, not current ones.
Investors are implicitly saying:
Earnings today are small relative to what’s coming
Margins may expand dramatically
The company may dominate a massive, growing market
Capital-light, scalable business model
So when Nvidia trades at a very high P/E, the market is effectively saying:
“We don’t care about this year’s earnings — we’re paying for what earnings might look like 5–10 years from now.”
That doesn’t mean they’re right — just that the story is growth-driven, not yield-driven.
3. Why Rolls-Royce (RR) gets judged differently
Rolls-Royce is seen as:
Cyclical
Capital intensive
Operationally complex
Historically volatile (near-death experience not long ago)
Lower long-term growth ceiling
So value-oriented investors look at RR and think:
Earnings are more “here and now”
Growth will likely be moderate, not exponential
Cash flows are more predictable but less scalable
That leads them to say:
“If growth is limited, I want a lower P/E to compensate.”
In other words, they’re applying a value lens to RR and a growth lens to Nvidia — even if they don’t explicitly say so.
(TBC in Part 2)