What if you invested $1,000 in Amgen in 2005? (Inflation-Adjusted)
AMGN · Healthcare · 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 Amgen grew to $8,339 in raw dollar terms, but in real purchasing power terms that gain is equivalent to $4,848 in constant 2005 dollars. That reflects a +7.7% per year real annualized return after accounting for price changes over 21 years.
Nominal final value
$8,339
+733.9% total return
Real value (2005 dollars)
$4,848
+384.8% real total return
Real annualized return
+7.7%
vs. +10.5% nominal annualized
Year-by-Year (Inflation-Adjusted)
$1,000 in Amgen since 2005, values in constant 2005 dollars
| Year | Nominal Value | Real Value (2005 $) |
|---|---|---|
| 2005 | $1,000 | $1,000 |
| 2006 | $1,171 | $1,137 |
| 2007 | $1,131 | $1,065 |
| 2008 | $749 | $679 |
| 2009 | $881 | $804 |
| 2010 | $940 | $836 |
| 2011 | $885 | $756 |
| 2012 | $1,103 | $923 |
| 2013 | $1,414 | $1,159 |
| 2014 | $2,005 | $1,620 |
| 2015 | $2,616 | $2,114 |
| 2016 | $2,676 | $2,132 |
| 2017 | $2,818 | $2,195 |
| 2018 | $3,440 | $2,600 |
| 2019 | $3,561 | $2,630 |
| 2020 | $4,237 | $3,079 |
| 2021 | $4,866 | $3,366 |
| 2022 | $4,719 | $2,991 |
| 2023 | $5,410 | $3,303 |
| 2024 | $6,969 | $4,133 |
| 2025 | $6,521 | $3,791 |
| 2026 | $8,065 | $4,689 |
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.