Margin of Safety Calculator

There is no single universal threshold — it depends on the stock's risk profile. As a general framework, established large-cap stocks with stable earnings may warrant a 10–15% discount to fair value. Higher-growth or less-predictable businesses typically require 20–30%, and speculative or cyclical situations may require 30–50% or more to justify the additional uncertainty.

Fair value can be estimated through several methods: discounted cash flow (DCF) analysis projects future free cash flows and discounts them to a present value; the Graham Number uses earnings per share and book value; and industry P/E or EV/EBITDA multiples benchmark a company against comparable peers. Each method has strengths and blind spots, which is why blending multiple models tends to produce a more reliable estimate.

Yes. A negative margin of safety means the current market price exceeds your fair value estimate — the stock appears to be trading at a premium. This does not necessarily mean the stock is a poor long-term holding, but it does mean there is no price cushion relative to your estimate. Many high-quality compounders trade at persistent premiums to simple valuation models.

Equity Rank blends 8–15 valuation models — including DCF, Graham Number, P/E, P/B, P/S, EV/EBITDA, PEG, and DDM — weighted by sector-calibrated method weights. The result is a model fair value range (25th/75th percentile across methods), not a single point estimate. The displayed margin of safety is a model residual: the percentage difference between the blended model fair value and the current market price, after applying dispersion shrinkage when methods disagree widely. It is not a probability of gain or loss, nor a prediction of future performance. It reflects model assumptions that may differ from market reality. You can explore the full methodology on the Methodology page.