Let's make 2026 your best investing year yet.

December is the perfect time to reset. While everyone else is distracted by the holidays, we are going to sharpen the fundamentals that will make you money next year.

I’ve noticed that while many readers follow our big themes, some of the core mechanics of the market get lost in the noise.

So today, we’re clearing the deck.

Here are the 3 simple concepts that will make you a better investor in the new year.

#1: Let’s Start with a Pop Quiz (aka The Pizza Theory) 

Here’s a quick warm-up.

Apple (AAPL) trades for about $278 a share.

Alphabet (GOOG) trades for roughly $322 a share.

Which company is bigger?

Some people would guess Alphabet. After all, its stock price is higher.

But the correct answer is Apple.

Apple’s market cap is around $4.1 trillion compared to Alphabet’s $3.9 trillion.

The key metric here is market capitalization.

Think of a company as a pizza.

The number of shares is the number of slices.

The stock price is what one slice costs.

The market cap is the value of the entire pizza.

Apple simply has a bigger pizza, even if the slices cost less.

This is why stock prices alone tell you almost nothing.

Berkshire Hathaway trades for hundreds of thousands of dollars per share.

That doesn’t make it the world’s largest business.

It just means the company issued fewer slices.

Once you understand this the market becomes much easier to navigate.

Never compare companies by their share price. Compare them by market cap.

#2: Understanding Ratios Is Key

Since stock prices aren’t helpful on their own, we need a way to compare companies on equal footing.

That’s where the price-to-earnings ratio, or P/E ratio, comes in.

The P/E ratio shows how much you’re paying for one dollar of a company’s earnings.

At the grocery store, you don’t compare items by package size.

You check the cost per pound label to see which option gives the best value.

The P/E ratio works the same way.

Imagine Company A trades at $50 a share and earned $5 per share last year. Its P/E is 10.

Company B trades at $100 a share and earned $10. Its P/E is also 10.

Even though one stock costs more per share, both are priced the same relative to earnings.

That’s why the P/E ratio matters.

It gives context. It tells you whether a stock is expensive or cheap compared to the profits it generates.

But even this metric has limits, which brings us to the final point.

#3: The Market Looks Forward! Not Backward

The most important thing to understand about investing is that the stock market is always looking ahead.

Historical financial statements are useful, but they describe what has already happened.

The market moves based on expectations about what will happen next.

This is what makes investing challenging and exciting.

You need to form an opinion about the future.

Will Apple sell more iPhones than investors currently expect?

Will Alphabet’s Waymo come to dominate the self-driving car market?

Is Google Search really “toast” with the rollout of OpenAI and other chatbots?

This is where real opportunity lives.

I lean heavily on earnings expectations and revisions.

Analysts on Wall Street build these forecasts and each analyst typically covers only a handful of companies.

So they typically know these businesses extremely well.

Their estimates give you a window into what informed professionals believe is coming.

You can access these estimates for free on Yahoo Finance by clicking the Analysis tab.

Pay attention to whether expectations are rising or falling by using the EPS Trend section. 

These changes often tell you more about future performance than last year’s earnings ever could.

The Bottom Line

Investing doesn't have to be complicated, but it does have to be disciplined.

By looking at market caps instead of share price, using Price to Earnings to compare stocks, and focusing on future expectations...

You’re already ahead of 90% of other investors out there.

Take some time this week to review your portfolio with these three rules in mind. 

We’ll be back soon with more insights to help you navigate the markets.

Until then, here’s to a profitable 2026!