If You Invested in 2008

Everyone assumes this was a terrible time to begin. It was not, and the ranking is the surprise — buying into a crash and buying at a peak are very different things.

$10,000 invested in January 2008 would be $48,100 today, in 2026 money — 4.81× the original, or 8.86% a year after inflation over 18.5 years. Along the way it fell 43.8% from its peak, bottoming in Mar 2009.

Dividends are reinvested and the figure is adjusted by CPI; before inflation the same run returned 11.65% a year. It excludes fees and taxes and covers US large-cap stocks only.

Where 2008 ranks

Of the 155 years someone could have started in this record, 2008 ranks 18th on real annualised return. The median start year returned 7.19% a year; 2008 returned 8.86%, ahead by 1.67% a year.

A gap that small looks negligible and is not. Over the 19 years since, the difference between this year’s return and the median compounds into a materially different ending balance — which is the case for caring when you start, and also the case for not trying to time it.

The ride, not just the return

8.86% a year is the summary. The experience was a 43.8% fall that bottomed in Mar 2009, and then 3.0 years to climb back to the peak it had before. Anyone who sold at the bottom locked in the loss and never saw the number at the top of this page.

What you would have sat through

2 separate falls of more than 20% since 2008. Each one is a moment somebody sold.

Peak	Bottom	Fall	Took to fall	Back to peak
Jan 2008	Mar 2009	−43.8%	14 months	3.0 years
Nov 2021	Oct 2022	−24.5%	11 months	17 months

Nominal against real

Basis	Annualised	$10,000 became
Real (after inflation)	8.86%	$48,100
Nominal (before inflation)	11.65%	—

The real figure is the one worth planning on. To see what inflation did to a fixed sum over the same stretch, measure the purchasing power of $10,000 from 2008 to today on the same CPI series.

Change the assumptions

This page fixes one set of inputs so it can say something specific. For a different amount, a monthly contribution, a different end date or any start month at all, run the backtest with your own figures. To see how 2008 compares with every other starting point rather than just its rank, look at the full distribution of rolling returns by holding period.

Other starting years

See what starting in 2000 returned, or compare it with a 2010 start.

Common questions

What would $10,000 invested in 2008 be worth today?

$48,100 in today's money — 4.81 times the original amount — assuming it went into the S&P 500 in January 2008 with dividends reinvested and stayed there. That is 8.86% a year after inflation over 18.5 years. Before inflation the same run returned 11.65% a year, which is the larger and less useful number.

Was 2008 a good year to start investing?

It ranks 18th of 155 start years in the record, so better than most. The median start year returned 7.19% a year in real terms against this year's 8.86% — ahead by 1.67% a year. Compounded over decades that gap is much larger than it sounds.

What was the worst drop for someone who started in 2008?

The portfolio fell 43.8% from its peak, bottoming in Mar 2009. From that bottom it took 3.0 years to get back to where it had been. That is the part a single annualised return hides, and it is the part people actually have to live through.

Does this include dividends and inflation?

Both. Dividends are reinvested monthly, and the headline figure is real — adjusted by CPI to 2026 dollars — because that is what the money can actually buy. It excludes fees and taxes, and covers US large-cap stocks only.

S&P Composite total return, dividends reinvested, 1871-01 to 2026-07, deflated by CPI. Before fees and taxes; US large-cap only. Past returns describe what already happened and are not a forecast. Source: Robert J. Shiller, Online Data (shillerdata.com) — S&P Composite, dividends and CPI, monthly from 1871. Estimates for general information only — not financial, tax, or investment advice. Permalinks exist for start years with at least 10 years of data.