Guides & Insights
In-depth articles to help you make better financial decisions — backed by the same math our calculators use.
The S&P 500 Just Crossed 7,600 — But 'You' Don't Own as Much of It as You Think
The index is up double digits in 2026 and hit a fresh record on June 2. The catch: the top 10 stocks now make up about 36% of it, so a 'diversified' index fund behaves more like a bet on a dozen AI names. Here are the myths to drop before you chase the high — or the SpaceX IPO.
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Trump Accounts vs. 529 Plans: Which Is Better for Your Child?
The new government-seeded Trump Account offers tax-free growth for kids — but 529 plans have a 30-year head start. Here's how to decide.
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What Is a Trump Account? Everything Parents Need to Know
A $1,000 government seed, $5,000/year in contributions, and tax-free growth to age 18 — here's how the new children's savings account actually works.
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Dollar-Cost Averaging: Does Investing Every Month Actually Work?
DCA is the default investing strategy for most people — but is it actually optimal? We break down the math and when it beats lump-sum investing.
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The Real Power of Compound Interest Over 30 Years
Starting 10 years earlier can double your final balance. Here's the math — and how small monthly contributions change everything.
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Index Funds vs Picking Stocks: The Evidence After 30 Years
Individual stock picking is exciting. But three decades of data are unambiguous about what most investors should do with their money.
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Roth vs Traditional IRA: Which Wins for Your Situation
The Roth vs Traditional question comes down to one prediction: will your tax rate be higher now or in retirement? Here's how to decide.
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