BigCapital beta

Time machine · 1871–2026 · with dividends, after inflation

What if you had invested…

Pick an amount, the dates and the assets. See what the money would have become — in dollars of the time and in today's dollars — with dividends and coupons reinvested.

Your scenario

If I had put from to into:

$87,200
S&P 500 in Oct 2026, in today's dollars
$43,800
in dollars of Jan 2000
+5.7% a year, real

Money put in: $10,000 in January 2000, that is $19,900 in today's dollars. What it became by October 2026, in today's dollars:

S&P 500 with dividends
$87,200
+5.7% a year, real×4.38 after inflation
US 10-year Treasuries
$26,600
+1.1% a year, real×1.34 after inflation
Gold
$144,000
+7.7% a year, real×7.26 after inflation
Cash under the mattress
$10,000
−2.5% a year, real×0.5 after inflation
S&P 500TreasuriesGoldCash
$10,000 once from Jan 2000 · in today's dollars (Oct 2026) · log scaleSource: Robert J. Shiller (S&P 500, bonds, inflation) · Source: World Bank (gold, CC BY 4.0) · Data: Coin Metrics (bitcoin, ether; CC BY-NC 4.0)
AssetValue at the endIn today's dollarsPurchasing powerA year, nominalA year, realWorst fallWorst fall, real
S&P 500$87,200$87,200×4.388.4%5.7%−49.0%Oct 2007 – Mar 2009−51.8%
Treasuries$26,600$26,600×1.343.7%1.1%−25.2%Jul 2020 – Oct 2023−37.3%
Gold$144,000$144,000×7.2610.5%7.7%−39.3%Sep 2011 – Dec 2015−41.8%
Cash$10,000$10,000×0.50.0%−2.5%0.0%−49.7%

Nominal: dollars of each date. Real: after US inflation. Purchasing power: what the final sum buys compared with the money put in. Worst fall: the largest drop of the asset from a high to a later low within the period, by monthly values.

Gold did best$144,000 in today's dollars: purchasing power grew 7.26 times, 7.7% a year after inflation.

Cash under the mattress did worst$10,000 in today's dollars: purchasing power fell by 49.7%, −2.5% a year after inflation.

Prices rose by 98.9%A dollar kept as cash from the start lost 49.7% of its purchasing power over the period.

$10,000 invested at the start of a year: worth in Oct 2026

Lump sum invested in January of each year; values in Oct 2026, in today's dollars. The second column is what $10,000 of that year is in today's money: the bar an investment had to clear just to keep up with prices.

Invested in January$10,000 then, in today's dollarsS&P 500TreasuriesGoldBitcoinEtherCash
1871$269,000$11.9B$10.1M———$10,000
1900$425,000$1.93B$2.7M———$10,000
1929$196,000$102M$902,000———$10,000
1950$143,000$47.4M$463,000———$10,000
1960$115,000$8.48M$418,000$1.16M——$10,000
1970$88,800$3.98M$330,000$1.17M——$10,000
1980$43,200$2.17M$190,000$60,800——$10,000
1990$26,400$466,000$57,200$100,000——$10,000
2000$19,900$87,200$26,600$144,000——$10,000
2008$15,900$79,300$14,700$46,100——$10,000
2011$15,200$79,400$12,900$30,200$1.47B—$10,000
2013$14,600$66,100$10,900$24,600$37.7M—$10,000
2016$14,200$48,000$10,300$37,400$2.11M$10M$10,000
2018$13,500$31,700$10,400$30,800$77,000$20,500$10,000
2020$13,000$26,000$9,170$26,300$82,700$125,000$10,000
2022$11,900$18,000$8,970$22,600$20,100$8,380$10,000
2024$10,900$16,600$10,200$20,200$18,200$9,860$10,000

Bitcoin and ether are bought at the end of January. Linked numbers lead to a detailed page.

If you had invested $1,000…

Ready answers to the questions people ask most, in today's dollars:

S&P 500 with dividends
US 10-year Treasuries
Gold
Bitcoin
Ether (Ethereum)

Model portfolios: stocks and bonds together

A 60/40 mix of US stocks and Treasuries, rebalanced every January, returned 5.6% a year after inflation since 1871, against 7.1% for stocks alone, and its worst fall was 48.4% instead of 76.8%.

Compare the mixes

How it is calculated

Source: Robert J. Shiller (S&P 500, bonds, inflation) · Source: World Bank (gold, CC BY 4.0) · Data: Coin Metrics (bitcoin, ether; CC BY-NC 4.0)