What if you invested $1,000 in Costco in 2005? (Inflation-Adjusted)
COST · Consumer · Adjusted to 2026 dollars using BLS CPI-U data
View nominal (non-adjusted) versionUsing BLS CPI-U data, cumulative inflation from 2005 to 2026 totals 72%. Your $1,000 in Costco grew to $29,701 in raw dollar terms, but in real purchasing power terms that gain is equivalent to $17,268 in constant 2005 dollars. That reflects a +14.2% per year real annualized return after accounting for price changes over 22 years.
Nominal final value
$29,701
+2870.1% total return
Real value (2005 dollars)
$17,268
+1626.8% real total return
Real annualized return
+14.2%
vs. +17.1% nominal annualized
Year-by-Year (Inflation-Adjusted)
$1,000 in Costco since 2005, values in constant 2005 dollars
| Year | Nominal Value | Real Value (2005 $) |
|---|---|---|
| 2005 | $1,000 | $1,000 |
| 2006 | $1,066 | $1,035 |
| 2007 | $1,211 | $1,141 |
| 2008 | $1,480 | $1,342 |
| 2009 | $991 | $904 |
| 2010 | $1,281 | $1,140 |
| 2011 | $1,624 | $1,388 |
| 2012 | $1,882 | $1,576 |
| 2013 | $2,537 | $2,080 |
| 2014 | $2,815 | $2,275 |
| 2015 | $3,623 | $2,928 |
| 2016 | $3,998 | $3,184 |
| 2017 | $4,387 | $3,418 |
| 2018 | $5,489 | $4,149 |
| 2019 | $6,109 | $4,511 |
| 2020 | $8,782 | $6,382 |
| 2021 | $10,484 | $7,253 |
| 2022 | $15,141 | $9,595 |
| 2023 | $15,423 | $9,415 |
| 2024 | $21,607 | $12,813 |
| 2025 | $30,647 | $17,818 |
| 2026 | $29,561 | $17,186 |
Inflation adjustment uses BLS CPI-U annual data, deflated to 2026 dollars. Nominal stock data from Yahoo Finance (split-adjusted closing prices). Real values are expressed in constant 2005 purchasing-power dollars. For informational and educational purposes only. Not financial advice. Past performance does not guarantee future results. See our methodology and full disclaimer.