What if you'd held PDFS?
A $1,000 investment in PDF Solutions, Inc. (PDFS) at the month-end close of 2001-07 would be worth $2,745 at the close of 2026-09 — +174.5% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $10,228.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-09, dividends included.
Every year, $1,000 from 2001
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2001 | $1,000 | — |
| 2002 | $330 | -67.0% |
| 2003 | $710 | +115.0% |
| 2004 | $767 | +8.1% |
| 2005 | $774 | +0.9% |
| 2006 | $688 | -11.1% |
| 2007 | $429 | -37.6% |
| 2008 | $68.57 | -84.0% |
| 2009 | $183 | +167.4% |
| 2010 | $230 | +25.2% |
| 2011 | $332 | +44.6% |
| 2012 | $656 | +97.7% |
| 2013 | $1,220 | +85.9% |
| 2014 | $708 | -42.0% |
| 2015 | $516 | -27.1% |
| 2016 | $1,074 | +108.0% |
| 2017 | $748 | -30.4% |
| 2018 | $401 | -46.3% |
| 2019 | $804 | +100.4% |
| 2020 | $1,029 | +27.9% |
| 2021 | $1,514 | +47.2% |
| 2022 | $1,358 | -10.3% |
| 2023 | $1,530 | +12.7% |
| 2024 | $1,290 | -15.7% |
| 2025 | $1,359 | +5.4% |
| 2026 | $2,070 | +52.3% |
Best and worst month-end to buy
The best single month-end close to have bought PDFS was 2009-02 ($1.07): $1,000 then is $40,617 today. The worst was 2026-06 ($70.79): $1,000 then is $614.
FAQ
What would $1,000 in PDFS be worth today?
A $1,000 investment in PDF Solutions, Inc. (PDFS) at the start of 2001 would be worth about $2,745 today, a total return of +174.5%. Dividends are reinvested in these figures.
What were the best and worst years for PDFS?
PDF Solutions, Inc. (PDFS)'s strongest calendar year since 2001 was 2009, a +167.4% return — $1,000 held through that year became about $2,674 by year-end. Its weakest year was 2008, at -84.0%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in PDFS have grown?
Investing $100 at the end of every month since 2001-07 would have grown to about $134,652 on $30,300 invested.
Did PDFS beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $10,228. PDFS trailed the S&P 500 by +73.2% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
PDF Solutions, Inc. (PDFS) historical total-return data from 2001-07 to 2026-09, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (EODHD): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-09-03. Not financial advice.