Principle-Driven Investing: 5 Rules for Surviving a 127% Overvalued Market
Principle-Driven Investing: 5 Rules for Surviving a 127% Overvalued Market
People who lose money in stocks share one trait: no plan.
They buy the wrong companies. Or more commonly, they buy the right companies at the wrong prices. And when fear hits, they sell at exactly the wrong time. I did all of this for years. It felt like the market was rigged against me.
That feeling went away after I learned to invest properly. For me, "properly" crystallized into what I call principle-driven investing. Here are the five principles.
1. Don't Try to Call the Bottom
Trying to predict when the war ends or when the market bottoms is a trap. Nobody knows. Nobody can.
Most investors who tried to time the bottom in 2025 got it wrong and missed the recovery. The right move isn't guessing the moment — it's already owning the right things at the right prices when the recovery arrives.
This sounds easy but it's emotionally the hardest part. Buying more while watching prices fall feels fundamentally wrong. But that's exactly when great businesses trade at great prices.
2. Respect Your Time Horizon
If you're 10, 20, 30 or more years away from needing the money, current drops matter far less than they feel.
The longer you hold great businesses, the lower your probability of losing money — as long as you paid a reasonable price. History is clear on this. So stay invested.
For ETFs, keep dollar-cost averaging. When you stop trying to time the bottom and just buy consistently, you end up paying the right price over the long run. Don't let headlines convince you to stop doing the thing that actually builds wealth.
I've been saying "the market is significantly overpriced" from the rooftops for a while. I still own close to 30 companies and contribute to SCHD every month — because it fits my goals and my needs.
3. Be Selective
This is not the moment to buy the market blindly and hope a post-war boom bails everything out.
Some individual stocks are still very expensive even after the correction. Others are genuinely getting interesting. Knowing the difference is the most important skill at this point in the cycle.
Find businesses priced below what they're actually worth and buy those. Not everything. The right things at the right price.
Some readers hit this and say, "I don't know how to do that analysis." That's fair. Learning how is the work of investing, and it takes time.
4. Follow Price, Not News
News follows the stock price. When stocks fall hard, news justifying the decline will inevitably appear. Not the other way around.
Everyone says "I'll buy if stocks fall in half." Very few actually do. In 2006, I was talking retirement with a couple. I asked, "If stocks fall in half, what would you do?" The wife looked at her husband, then at me, and said, "We'd buy more, right?" During the 2008 crisis, stocks actually fell in half — and they sold everything. "We were too scared things would go to zero."
That's human nature. Without a plan written ahead of time, you start to experience news as fact in the moment itself. That's why you write the principles down.
5. Buy Only Below Intrinsic Value
It all collapses into one sentence. Price is what you pay. Value is what you get.
Identifying a great company and buying at a great price are entirely different skills. You can buy the best business in the world, and if you overpay, you won't make money. That's math, not opinion.
Steph Curry doesn't start his shooting routine at half-court. He starts three feet from the net, masters the fundamentals, then works backward. Fundamentals aren't sexy — but they pay.
A post-war boom might happen. It might not. We don't know the future. But one thing is certain: the biggest winners won't be the people who predicted the boom. They'll be the ones who already owned great businesses at reasonable prices, with the patience to hold through everything else.
FAQ
Q: If the market is 127% overvalued, is there any reason to keep buying ETFs now? A: If you can hold stocks long-term beyond your living expenses, stopping DCA often costs more than continuing. Investors who paused because "the market looks expensive" historically missed some of the largest upside moves. Check your time horizon and cash needs before changing your approach.
Q: Can principle-driven investing actually beat the broader market? A: Beating the market isn't the goal. Not making repeated emotional losses is. Decades of data show the average investor earns significantly less than the market itself because of buy/sell timing. Principles are the mechanism for narrowing that gap.
Q: How should I balance individual stocks and ETFs? A: If your analysis time and knowledge are limited, lean heavier on ETFs and concentrate individual-stock bets on a small number of companies you deeply understand. Individual analysis takes time but compounds as a learning curve over the long run.
Next Posts
Is Low Volume on SPY Uptrend a Bull Trap? What the Data Actually Says
Is Low Volume on SPY Uptrend a Bull Trap? What the Data Actually Says
SPY moved 632 to 710 in under three weeks while volume actually dropped into the 40M–60M range. The June-to-October 2024 uptrend ran on the same range. Volume surges happen at reversals and breakouts — not during trend continuation. As long as 695–698 holds, low volume alone is not a trap signal.
Semiconductors Are Driving the NASDAQ Run — 6 Names to Watch Now
Semiconductors Are Driving the NASDAQ Run — 6 Names to Watch Now
SMH is trading roughly 10% above its previous all-time high. NVDA just reclaimed $200 for the first time since November 2024. AVGO and AMD are back at all-time highs, and MU, SNDK, TSM are aligned. As long as semis lead like this, NASDAQ is not the short side.
Meta Is a Dormant Volcano — My Top Watch This Week
Meta Is a Dormant Volcano — My Top Watch This Week
Meta built a shelf above the 200 DMA and defended the $682 level. The near-term catalyst is a $700 breakout — and the air above it is thin, enabling fast extension. Zuckerberg's AI-infrastructure strategy and sector strength from Nebius, IREN, and CoreWeave support the thesis.
Previous Posts
Buffett Indicator at 127% Overvalued — S&P 7,022 and the Most Expensive Market in History
Buffett Indicator at 127% Overvalued — S&P 7,022 and the Most Expensive Market in History
The market cap / GDP ratio (Buffett Indicator) sits at 127% overvalued. The 10-year CAPE is 40.24 — 2.3x the historical average of 17.84. The 2000 dot-com peak (45-47%, CAPE 44.19) was lower than today, and Buffett closed his partnership in 1968 at just 24%. Costco and Walmart trade at 50-60x FCF, while some software names have pulled back into margin-of-safety territory.
If the Iran War Ends, Stocks Rally — What History Tells Us About the Post-War Boom Theory
If the Iran War Ends, Stocks Rally — What History Tells Us About the Post-War Boom Theory
Markets have recovered after every major modern conflict — Gulf War, 9/11, Russia-Ukraine. The S&P 500 gained 26% in 2023 after the 2022 Russia-Ukraine shock. In 2025, Q1 tariff panic ended with the year up 17%. An Iran de-escalation could trigger the four-stage post-war dividend: Strait of Hormuz reopening, supply-chain normalization, resumed business investment, and capital returning from the sidelines.
A Market Drop Isn't the Real Risk — The 5-Stage Chain Reaction I'm Actually Preparing For
A Market Drop Isn't the Real Risk — The 5-Stage Chain Reaction I'm Actually Preparing For
A market decline by itself isn't the worst case. The real risk is the chain reaction — rising oil → consumer spending weakens → earnings break → layoffs — where the job-loss stage forces retail investors to sell at the lows. A 6-month emergency fund, payoff of debt above 5%, maintained DCA, and sector discipline form the defensive setup that wins in either scenario.