Finance Definitions Hub
Definitions and entity pages built for semantic clarity. Each term links to adjacent calculators, guides, and comparison pages so users can move from concept to scenario modeling.
Compound Interest
Compound interest is interest earned on both principal and previously earned interest over repeated periods.
Read definitionCAGR (Compound Annual Growth Rate)
CAGR is the annualized rate that would turn a starting value into an ending value over a defined period.
Read definitionROI (Return on Investment)
ROI measures total gain or loss relative to initial cost over a period.
Read definitionSafe Withdrawal Rate (SWR)
SWR is a planning rate used to estimate annual withdrawals that aim to keep retirement portfolios sustainable.
Read definitionSequence of Returns Risk
Sequence risk is the risk that poor early returns during withdrawals harm long-term sustainability.
Read definitionLoan Amortization
Loan amortization is structured repayment where each installment includes both interest and principal.
Read definitionAPR vs APY
APR is a nominal annual rate, while APY reflects compounding and effective annual yield or cost.
Read definitionReal vs Nominal Return
Nominal return is unadjusted growth; real return adjusts for inflation and reflects purchasing-power change.
Read definitionInflation
Inflation is the sustained increase in general prices that reduces money’s purchasing power over time.
Read definitionDebt-to-Income Ratio (DTI)
DTI measures monthly debt obligations relative to gross monthly income as a borrowing capacity signal.
Read definitionExpense Ratio
Expense ratio is the annual management cost charged by a fund, expressed as a percentage of assets.
Read definitionLumpsum Investing
Lumpsum investing deploys a large amount at once rather than spreading entries over time.
Read definitionSIP (Systematic Investment Plan)
SIP is recurring periodic investing, usually monthly, into selected assets or funds.
Read definitionXIRR
XIRR is an annualized return metric for investments with irregular cash-flow timing.
Read definitionDrawdown
Drawdown is the decline from a portfolio’s peak value to a subsequent trough.
Read definitionFIRE Number
FIRE number is the portfolio target intended to support long-term expenses using a chosen withdrawal framework.
Read definitionBreak-Even Analysis
Break-even analysis identifies when an option’s cumulative benefits exceed its costs.
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