Expected vs. Unexpected Inflation
We spend decades building wealth. Inflation spends decades quietly dismantling it.
But here’s what most physician investors miss: not all inflation works the same way. There’s expected inflation that the market already prices in, and unexpected inflation, a surprise that actually destroys purchasing power.
The distinction matters more than most advisors will tell you. And knowing which tools protect against which type can fundamentally change how you build your retirement portfolio.
Let me break this down the way I wish someone had explained it to me when I was still rounding on patients.
Expected Inflation: The Market Already Did the Math
Bond markets have already priced in expected inflation. Right now, long-term expectations hover around 2–2.5%.
Here’s the key: the market builds this expectation directly into the yields on nominal Treasury bonds.
When you buy a 10-year Treasury yielding 4.2%, roughly 2% of that is compensation for the inflation everyone already expects. The remaining 2.2% is your real return: your actual purchasing power return on investment.
So if inflation comes in exactly as predicted? Your nominal bonds did the job. Your purchasing power held. Same story with high-yield savings accounts and CDs — when rates rise with Fed policy, they adjust to the expected inflation environment automatically.
No fancy tools required. For expected inflation, plain vanilla bonds and cash equivalents work fine.
Unexpected Inflation: The Real Retirement Killer
Unexpected inflation is when actual CPI runs hotter than the market predicted.
Think 2021–2022. Breakeven inflation expectations were sitting around 2.5%, and then reality delivered 7–9%. That gap — the difference between what was expected and what actually happened — is the bad news.
When that happens:
- The real value of your fixed nominal payments drops. A bond that looked great on paper suddenly buys 15–20% less than you planned.
- Sequence risk compounds the pain. If you’re drawing down in early retirement and a surprise inflation spike hits, the math gets ugly fast. Inflation coumpounds sequence of returns risk.
This is where most physicians get caught. We hear “high inflation = bad for bonds” without asking why inflation is high — or whether it was already priced in.
TIPS: Purpose-Built for the Surprise
Treasury Inflation-Protected Securities (TIPS) are the only mainstream investment specifically designed to hedge unexpected inflation.
Here’s how they work:
- The principal adjusts with CPI every six months. If inflation runs hot, your principal grows with it.
- You earn a fixed real yield on top of that adjusted principal. Buy TIPS at +2% real, and you lock in roughly 2% above whatever inflation actually does.
The mechanism is elegant: the breakeven rate — the spread between nominal Treasury yields and TIPS yields. This tells you exactly what the market expects. If actual inflation beats that breakeven, TIPS outperform nominals. If it comes in lower, nominals win.
That’s the critical insight: expected inflation is already baked into current prices. TIPS don’t help you there. They earn their keep when inflation surprises to the upside. This is precisely the scenario that wrecks a nominal bond portfolio in retirement.
Other Inflation Hedges (and Their Limits)
TIPS aren’t the only game in town:
I Bonds — Great for short-term cash you want inflation-protected. They carry a 0% deflation floor, offer tax deferral, and work well as part of an emergency fund. The $10,000 annual purchase limit caps their usefulness for larger portfolios.
Equities — Over the very long run, stocks tend to outpace inflation because companies can raise prices. But “long run” means decades, and in the short term, high inflation often hurts stock valuations. Not a reliable hedge when you need one most.
Real Estate — Rents and property values generally rise with inflation, making real estate a partial hedge — especially if you own your clinic building or have rental properties. The tradeoff is illiquidity and concentration risk.
The best approach usually combines all three: nominal bonds for the expected inflation component, a healthy allocation of TIPS for the unexpected part, and equities and real assets for long-term growth. And don’t forget about managed futures.
What This Means for Your Physician Portfolio
Most of us have long time horizons and high incomes, which buys flexibility. But once you’re within 5–10 years of retirement — or already retired — the expected vs. unexpected distinction matters enormously.
A few practical guidelines:
- Don’t chase yesterday’s inflation. If CPI already spiked and the market repriced, that surprise is over. TIPS bought after a spike protect you against the next surprise, not the last one.
- Use TIPS to liability-match inflation-sensitive spending. Short-duration TIPS for expenses in the next 1–3 years. Intermediate-duration for the bulk of your bond allocation.
- Keep nominal bonds for the predictable part. They still earn a real return when inflation behaves as expected — and they’re simpler to manage.
The Bottom Line
Inflation itself isn’t the enemy. Unexpected inflation is.
Understand the difference, match the right tool to each type, and you’ll sleep better knowing your purchasing power is protected — no matter what the next decade throws at us.
How much of your fixed-income allocation is in TIPS? I’d be curious to hear your approach — drop me an email and by the way, I don’t recommend TIPS unless you are doing asset liability matching. I have never owned TIPS and I like never will.