The Investment Rule Most People Can't Follow (And Why It Matters)

The hardest part of investing isn't picking stocks—it's mastering yourself.
There's one investment rule that sounds deceptively simple, yet proves nearly impossible for most investors to follow consistently. It's not about complex financial formulas or insider market knowledge. It's about something far more challenging: doing nothing when everything inside you screams to do something.

Author Image
AARAV SHAH
June 12, 2025
Blog Image

The Rule That Breaks Most Investors

Buy and hold during market volatility.

That's it. Three words that represent one of the most profitable investment strategies ever documented, yet one that fewer than 5% of investors can execute successfully over the long term.

When markets crash by 20%, 30%, or even 50%, the logical response seems obvious: sell before you lose more, or at least stop adding new money to your investments. When markets soar to seemingly unsustainable heights, the temptation to cash out and "lock in gains" becomes overwhelming.

But here's the brutal truth: these natural, logical responses are exactly what destroys long-term wealth.

Why Our Brains Sabotage Our Portfolios

The Pain of Loss Hurts Twice as Much

Behavioral economists have proven that humans feel the pain of losing $1,000 roughly twice as intensely as the pleasure of gaining $1,000. This isn't a character flaw—it's evolutionary wiring that helped our ancestors survive.

But what kept early humans alive now keeps modern investors poor.

When your portfolio drops 25% in a month, your brain interprets this as a genuine threat to survival. Every instinct screams "ESCAPE!" The fact that you're still employed, housed, and fed doesn't matter to your amygdala—it only sees danger.

The Illusion of Control

Humans are hardwired to believe they can control outcomes through action. Sitting still while your portfolio gyrates feels irresponsible, even reckless.

"Surely," we think, "I can time this better. I can get out before it gets worse and get back in before it recovers."

The data says otherwise. Study after study shows that investors who trade frequently—who act on these impulses—underperform those who do nothing by 2-3% annually. Over decades, this difference is catastrophic.

Social Proof Gone Wrong

When your coworker mentions they "got out of the market just in time," when financial media screams about impending doom, when your neighbor brags about their market timing success, the pressure to act becomes nearly unbearable.

We're social creatures who survived by following the herd. But in investing, the herd is usually wrong at exactly the wrong time.

The Mathematical Reality

Let's examine why buy-and-hold is so powerful, even though it feels so wrong:

Missing the Best Days Destroys Returns

From 1993 to 2013, the S&P 500 generated an annualized return of 9.22%. But if you missed just the 10 best days during those 20 years—just 10 days out of 5,000+ trading days—your return dropped to 5.49%.

Miss the best 20 days? Your return falls to 3.02%.

Miss the best 40 days? You actually lose money: -1.4% annually.

The cruel irony? The best days often come immediately after the worst days. When you sell in panic, you're not just avoiding further losses—you're likely missing the recovery too.

Compound Interest Needs Time

‍Einstein allegedly called compound interest "the eighth wonder of the world." But compounding doesn't work if you keep interrupting it.

Every time you sell out of fear and buy back later, you're resetting your compounding clock. You're turning a smooth exponential curve into a jagged line of missed opportunities.

A $10,000 investment growing at 10% annually becomes:

• $67,275 after 20 years

• $174,494 after 30 years

• $452,593 after 40 years

But those numbers assume you never panic-sold, never tried to time the market, never got spooked by a recession or excited by a bubble.

The Emotional Roller Coaster

Peak Greed and Maximum Fear

The market has a cruel sense of humor. It tends to reach maximum pessimism right at the bottom and peak optimism right at the top.

In March 2009, with unemployment soaring and banks failing, it felt insane to buy stocks. The S&P 500 sat at 676 points, down 57% from its peak. Rational people were selling.

Those "irrational" enough to buy or hold saw their investments more than triple over the next five years.

In early 2000, as dot-com stocks reached stratospheric valuations, it felt crazy not to join the party. Rational people were buying. The subsequent crash wiped out trillions in wealth.

The News Media Amplifies Everything

Financial media makes money from attention, not from giving good investment advice. Fear and greed generate clicks; "stay the course" doesn't.

When markets are crashing, you'll see headlines like "Is This the Next Great Depression?" When they're soaring, it's "New Era of Prosperity" or "This Time Is Different."

The buy-and-hold investor learns to treat financial news like weather reports—interesting, but largely irrelevant to their long-term plans.

How to Actually Follow the Rule

1. Automate Your Emotions Away

Set up automatic investments that occur regardless of market conditions. When the decision is automated, emotion can't interfere.

Dollar-cost averaging—investing the same amount regularly—naturally buys more shares when prices are low and fewer when they're high. It's buy-and-hold with a mathematical edge.

2. Zoom Out Your Perspective

Daily market movements are noise. Monthly movements are usually noise too. Annual movements start to matter, but even then, what matters most is the decade-plus view.

Change your perspective by changing your timeline. Check your portfolio quarterly at most. Daily checking trains your brain to overreact to meaningless short-term volatility.

3. Prepare for Pain

Expect your portfolio to drop 20% at some point every few years. Expect a 50% drop every decade or so. When you're mentally prepared for these declines, they're less likely to trigger panic selling.

Keep a "crash fund"—extra cash specifically set aside to buy more investments when markets crater. Having a plan for market crashes transforms them from disasters into opportunities.

4. Focus on Income, Not Fluctuations

If you're investing in dividend-paying stocks or funds, focus on the dividend payments rather than share price movements. As long as companies keep paying (and ideally growing) their dividends, temporary price declines become irrelevant.

A stock that drops 30% but maintains its dividend is now yielding 30% more income per dollar invested. That's a gift, not a catastrophe.

5. Study the History

Every market crash in history has been followed by a recovery that reached new highs. Every time pessimism felt permanent, it wasn't.

The Great Depression, World War II, the 1970s stagflation, the 1980s recession, the 1987 crash, the dot-com bubble, the 2008 financial crisis, the 2020 pandemic—all seemed world-ending at the time. All were ultimately buying opportunities.

The Paradox of Trying Less

The hardest truth in investing is that trying harder usually makes things worse. The most successful investors aren't the smartest or the most active—they're the most patient.

Warren Buffett, the world's most famous investor, has held some stocks for decades without selling. His advice? "Time in the market beats timing the market." But Buffett isn't superhuman. He's just mastered the art of doing nothing when doing nothing is the hardest thing to do.

Your Two Choices

Every investor faces the same fundamental choice:

1. Trust the market's long-term growth trajectory and accept short-term volatility as the price of admission

2. Try to outsmart the market and accept that you'll likely underperform passive investors

The first choice requires emotional discipline but no special skill or knowledge. The second requires both exceptional skill AND emotional discipline, yet statistically leads to worse outcomes.

Most investors choose option two anyway, because option one feels too much like giving up control.

The Ultimate Test

The next major market crash will test every investor's resolve. Your portfolio will drop dramatically. Financial experts will debate whether "this time is different." Your neighbor will brag about selling at the top.

In that moment, you'll face the rule most investors can't handle: do nothing.

The investors who pass this test—who buy and hold through the chaos—will be rewarded with the wealth transferred from those who couldn't.

The question isn't whether you understand the rule. The question is whether you can follow it when it matters most.

What Doesn’t Work Anymore

Old-school SEO tricks don’t cut it anymore. Keyword stuffing, buying backlinks, and creating low-value or purely AI-generated content can hurt your rankings. Google's algorithms now favor useful, human-edited content that actually helps people.

Voice search is also growing fast, so optimizing for conversational keywords and questions is now essential. Lastly, having exact match domains doesn’t guarantee higher rankings anymore—what matters is your content quality, brand trust, and user experience.

Stay sharp. Stay ahead.

Insights & Ideas

Explore Real Strategies, Trends, and Tips to Help Your Brand Grow.