Fuel Tech, Inc. (FTEK) P/E Ratio History
Deep ValueTrading at -20.5x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 1999–2021
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P/E Ratio Analysis
As of June 22, 2026, Fuel Tech, Inc. (FTEK) trades at a price-to-earnings ratio of -20.5x, with a stock price of $1.54 and trailing twelve-month earnings per share of $-0.09.
The current P/E is 120% below its 5-year average of 100.8x. Over the past five years, FTEK's P/E has ranged from a low of 20.0x to a high of 498.1x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.6x, FTEK trades at a 180% discount to its sector peers. The sector includes 403 companies with P/E ratios ranging from 0.1x to 198.8x.
Relative to the broader market, FTEK trades at a notable discount to the S&P 500 median P/E of 24.4x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our FTEK DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
FTEK Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
FTEK P/E vs Peers
Air and Water Treatment Systems peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $4B | 71.8 | 1.67 | +281%Best | |
| $298B | 62.7 | - | +217% | |
| $164B | 40.3 | 1.64Best | +10% | |
| $84B | 37.3 | 8.26 | +18% | |
| $54B | 37.1 | 3.32 | +8% | |
| $34B | 23.3Lowest | 2.43 | -1% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
FTEK Historical P/E Data (1999–2021)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2021 Q4 | Dec 31 2021 | $1.40 | $0.00 | 482.8x | +281% |
| FY2021 Q2 | Jun 30 2021 | $2.35 | $0.02 | 106.3x | -16% |
| FY2014 Q2 | Jun 30 2014 | $5.64 | $0.09 | 62.4x | -51% |
| FY2014 Q1 | Mar 31 2014 | $5.00 | $0.17 | 29.1x | -77% |
| FY2013 Q4 | - | $7.09 | $0.22 | 32.4x | -74% |
| FY2013 Q3 | Sep 30 2013 | $4.36 | $0.20 | 22.0x | -83% |
| FY2013 Q2 | Jun 30 2013 | $3.83 | $0.10 | 39.2x | -69% |
| FY2013 Q1 | Mar 31 2013 | $4.32 | $0.05 | 85.4x | -33% |
| FY2012 Q4 | Dec 31 2012 | $4.20 | $0.11 | 37.7x | -70% |
| FY2012 Q3 | Sep 30 2012 | $4.17 | $0.18 | 22.7x | -82% |
| FY2012 Q2 | Jun 30 2012 | $4.88 | $0.24 | 20.0x | -84% |
| FY2012 Q1 | Mar 31 2012 | $5.46 | $0.26 | 20.9x | -83% |
| FY2011 Q4 | Dec 31 2011 | $6.58 | $0.25 | 26.2x | -79% |
| FY2011 Q3 | Sep 30 2011 | $5.82 | $0.22 | 26.1x | -79% |
| FY2011 Q2 | - | $6.63 | $0.14 | 46.5x | -63% |
| FY2011 Q1 | - | $8.90 | $0.11 | 81.1x | -36% |
| FY2010 Q4 | Dec 31 2010 | $9.71 | $0.07 | 139.1x | +10% |
| FY2010 Q3 | - | $6.27 | $0.04 | 170.4x | +34% |
| FY2009 Q1 | - | $10.46 | $0.02 | 498.1x | +293% |
| FY2008 Q4 | Dec 31 2008 | $10.59 | $0.16 | 68.0x | -46% |
| FY2008 Q3 | - | $18.09 | $0.41 | 44.1x | -65% |
| FY2008 Q2 | Jun 30 2008 | $17.62 | $0.36 | 48.9x | -61% |
| FY2008 Q1 | Mar 31 2008 | $20.50 | $0.35 | 58.6x | -54% |
| FY2007 Q4 | Dec 31 2007 | $22.65 | $0.31 | 73.1x | -42% |
| FY2007 Q3 | Sep 30 2007 | $22.09 | $0.15 | 150.2x | +18% |
| FY2007 Q2 | Jun 30 2007 | $34.25 | $0.20 | 173.8x | +37% |
| FY2007 Q1 | Mar 31 2007 | $24.65 | $0.27 | 92.3x | -27% |
| FY2006 Q4 | Dec 31 2006 | $24.64 | $0.30 | 82.9x | -35% |
| FY2006 Q3 | Sep 30 2006 | $14.89 | $0.36 | 41.4x | -67% |
| FY2006 Q2 | Jun 30 2006 | $12.10 | $0.32 | 37.8x | -70% |
| FY2006 Q1 | Mar 31 2006 | $15.99 | $0.38 | 42.1x | -67% |
| FY2005 Q4 | Dec 31 2005 | $9.07 | $0.35 | 25.9x | -80% |
| FY2005 Q3 | Sep 30 2005 | $9.25 | $0.29 | 32.2x | -75% |
| FY2005 Q2 | - | $6.05 | $0.29 | 21.1x | -83% |
| FY2005 Q1 | - | $5.91 | $0.13 | 44.3x | -65% |
| FY2004 Q4 | Dec 31 2004 | $4.67 | $0.08 | 60.3x | -52% |
| FY2004 Q2 | Jun 30 2004 | $5.10 | $0.01 | 850.0x | +571% |
| FY2004 Q1 | Mar 31 2004 | $5.00 | $0.05 | 100.2x | -21% |
| FY2003 Q4 | Dec 31 2003 | $3.55 | $0.05 | 71.9x | -43% |
| FY2003 Q3 | - | $5.35 | $0.13 | 40.4x | -68% |
| FY2003 Q2 | Jun 30 2003 | $5.60 | $0.09 | 60.7x | -52% |
| FY2003 Q1 | Mar 31 2003 | $3.31 | $0.11 | 29.5x | -77% |
| FY2002 Q4 | - | $4.19 | $0.15 | 28.2x | -78% |
| FY2002 Q3 | Sep 30 2002 | $4.29 | $0.06 | 73.8x | -42% |
| FY2002 Q2 | Jun 30 2002 | $6.60 | $0.02 | 271.6x | +114% |
| FY2001 Q2 | Jun 30 2001 | $3.20 | $0.00 | 1391.3x | +998% |
| FY2000 Q4 | Dec 31 2000 | $1.69 | $0.02 | 78.2x | -38% |
| FY2000 Q3 | Sep 30 2000 | $2.06 | $0.04 | 56.9x | -55% |
| FY2000 Q2 | Jun 30 2000 | $2.28 | $0.02 | 140.7x | +11% |
| FY1999 Q3 | - | $2.56 | $0.03 | 98.1x | -23% |
Average P/E for displayed period: 126.7x
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
27+ years return with dividends reinvested.
DCA Calculator
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Peer Comparison
Compare growth, multiples, and margins vs sector.
FTEK — Frequently Asked Questions
Quick answers to the most common questions about buying FTEK stock.
What is FTEK's P/E ratio?
Fuel Tech, Inc. (FTEK) trailing twelve-month P/E ratio is -20.5x, based on TTM diluted EPS of $-0.09. The 5-year average P/E is 100.8x and the historical range spans 20.0x to 498.1x.
Is FTEK stock overvalued or undervalued?
FTEK trades at -20.5x P/E, below its 5-year average of 100.8x. At the 0th percentile of its historical range (20.0x–498.1x), the stock is priced at a discount to its own history.
Is FTEK stock expensive?
No, FTEK is not expensive on a historical basis. The current P/E of -20.5x is below the 5-year average of 100.8x and sits at the 0th percentile of its valuation range.
What is FTEK's historical P/E range?
Over the past 5 years, FTEK's P/E ratio has ranged from 20.0x to 498.1x, with a median of 46.5x and an average of 100.8x. The current P/E of -20.5x places the stock at the 0th percentile of this range. Full historical data spans 1999–2021.
How does FTEK's P/E compare to the S&P 500?
FTEK trades at -20.5x P/E versus the S&P 500 median of 24.4x. The 184% discount to the market suggests lower growth expectations or perceived higher risk.
How does FTEK's valuation compare to Industrials peers?
Fuel Tech, Inc. P/E of -20.5x compares to the Industrials sector median of 25.6x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is FTEK's PEG ratio?
FTEK PEG ratio is N/A, based on a P/E of -20.5x and EPS growth of -18.1%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is FTEK's earnings yield?
FTEK earnings yield is N/A, the inverse of its -20.5x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.