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Missing the best stock market days calculator

Compare a continuous historical holding with a hypothetical path that removes the largest single-day gains. Select a US stock or ETF and the number of best days to see how a small set of sessions changed the compounded result.

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How this is calculated

Daily returns are split-adjusted, then the largest single-day gains are removed and the remainder compounded. A day the stock did not trade counts as a flat day and cannot be selected. This is arithmetic on the historical series, not a claim about any strategy: nobody could have known in advance which days these were, in either direction.

The heaviest horizontal line on the chart marks the amount originally invested.

What this calculator shows

Two return paths
The chart keeps the actual buy-and-hold record beside the hypothetical missed-days result.
Daily compounding
The comparison removes selected split-adjusted daily returns before recompounding the series.
Historical illustration
The calculation does not assume anyone could identify the largest gains in advance.