What if you'd held NEPH?
A $1,000 investment in Nephros, Inc. (NEPH) at the month-end close of 2004-09 would be worth $4.39 at the close of 2026-09 — -99.6% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $10,500.
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 2004
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2004 | $1,000 | — |
| 2005 | $304 | -69.6% |
| 2006 | $306 | +0.7% |
| 2007 | $105 | -65.5% |
| 2008 | $25.32 | -76.0% |
| 2009 | $165 | +550.0% |
| 2010 | $21.10 | -87.2% |
| 2011 | $7.28 | -65.5% |
| 2012 | $12.55 | +72.5% |
| 2013 | $4.43 | -64.7% |
| 2014 | $8.33 | +88.1% |
| 2015 | $2.32 | -72.2% |
| 2016 | $3.90 | +68.2% |
| 2017 | $4.75 | +21.6% |
| 2018 | $6.01 | +26.7% |
| 2019 | $11.66 | +94.0% |
| 2020 | $10.06 | -13.8% |
| 2021 | $6.92 | -31.2% |
| 2022 | $1.36 | -80.3% |
| 2023 | $4.06 | +198.3% |
| 2024 | $1.72 | -57.5% |
| 2025 | $5.72 | +232.0% |
| 2026 | $4.76 | -16.8% |
Best and worst month-end to buy
The best single month-end close to have bought NEPH was 2022-09 ($0.91): $1,000 then is $4,462 today. The worst was 2005-02 ($1,022): $1,000 then is $3.97.
FAQ
What would $1,000 in NEPH be worth today?
A $1,000 investment in Nephros, Inc. (NEPH) at the start of 2004 would be worth about $4.39 today, a total return of -99.6%. Dividends are reinvested in these figures.
What were the best and worst years for NEPH?
Nephros, Inc. (NEPH)'s strongest calendar year since 2004 was 2009, a +550.0% return — $1,000 held through that year became about $6,500 by year-end. Its weakest year was 2010, at -87.2%.
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 NEPH have grown?
Investing $100 at the end of every month since 2004-09 would have grown to about $21,856 on $26,500 invested.
Did NEPH 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 $10,500. NEPH trailed the S&P 500 by +100.0% 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
Nephros, Inc. (NEPH) historical total-return data from 2004-09 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 2026-09-04. Not financial advice.