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Quick, decision-oriented head-to-heads for DIY investors. Each one shows the metrics that matter, who should pick which, and a calculator to size the choice, then links to the full reasoning.

ETFs

VTI vs VOO

VTI or VOO? Total U.S. market vs the S&P 500, compared on holdings, overlap, cost, and the decision that actually matters. A quick, evidence-based answer.

Accounts

Roth vs Traditional

Roth or traditional? Pay tax now or later. The break-even on your current vs retirement tax rate, RMDs, 2026 limits, and who should pick which, with a calculator.

Strategy

Lump Sum vs DCA

Invest it all at once or spread it out? 98 years of S&P 500 data say lump sum wins 67% of the time; DCA is behavioral insurance. The math and the calculator.

ETFs

AVUV vs AVDV

AVUV or AVDV? U.S. vs international small-cap value from Avantis. Same method, different geography. Why they complement rather than compete, with an overlap tool.

Cash

SGOV vs T-Bills vs HYSA

Where to park cash? SGOV, direct T-bills, and a high-yield savings account compared on after-tax yield, liquidity, and state-tax treatment, with a cash optimizer.

Accounts

529 vs Taxable Brokerage

529 or a taxable brokerage for college? Tax-free growth and a state deduction vs full flexibility. When the 529 wins decisively and when flexibility is worth more.

ETFs

AVGV vs VT

AVGV or VT? A built-in global value tilt vs the total world market in one ticker. Same global reach, different bet, and a 0.20% fee gap. Who should pick which.

ETFs

VT vs VTI + VXUS

One-fund VT or the two-fund VTI + VXUS combo? Same global exposure. When the two-fund split is worth it for cost, control, and the foreign tax credit in taxable.

ETFs

AVUV vs VBR

AVUV or VBR for small-cap value? A refined active value + profitability screen vs cheap index beta. Whether the extra ~20 basis points buys you anything.

ETFs

FZROX vs VTI

FZROX or VTI? A 0.00% Fidelity fund vs the 0.03% CRSP ETF. Why account type, index breadth, and portability matter more than three basis points, with a calculator.

ETFs

FZROX vs VTSAX

FZROX or VTSAX for the total U.S. market? A free Fidelity-only fund vs Vanguard's CRSP fund that converts to a portable ETF. When each one wins, and why.

ETFs

VTI vs VTSAX

VTI or VTSAX? They are share classes of the same Vanguard fund and same CRSP index. ETF vs Admiral mutual fund on cost, portability, and how you invest.

Bonds

BND vs TIPS

BND or TIPS? Nominal total bonds hedge growth scares; TIPS hedge inflation surprises. They solve different problems, and TIPS belong in tax-advantaged accounts.