Acuity Brands, Inc. (AYI) P/E Ratio History
Premium ValuationTrading at 25.3x vs 5Y avg 19.8x · 90th percentile · Premium to historical baseline · Data 2002–2026
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P/E Ratio Analysis
As of June 22, 2026, Acuity Brands, Inc. (AYI) trades at a price-to-earnings ratio of 25.3x, with a stock price of $317.28 and trailing twelve-month earnings per share of $13.00.
The current P/E is 28% above its 5-year average of 19.8x. Over the past five years, AYI's P/E has ranged from a low of 13.0x to a high of 28.2x, placing the current valuation at the 90th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.6x, AYI is roughly in line with its sector peers. The sector includes 403 companies with P/E ratios ranging from 0.1x to 198.8x.
The PEG ratio of 1.71 (P/E divided by -7% EPS growth) suggests a fair valuation relative to its earnings growth. Peter Lynch popularized the rule that a PEG below 1.0 indicates an attractive entry point.
Relative to the broader market, AYI trades roughly in line with 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 AYI 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.
AYI Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
AYI P/E vs Peers
Lighting and Building Controls peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $28B | 31.7 | 1.52 | +15% | |
| $29B | 41.1 | - | +119% | |
| $3B | 4.6Lowest | 0.10Best | +223%Best | |
| $164B | 40.3 | 1.64 | +10% | |
| $54B | 37.1 | 3.32 | +8% | |
| $4B | 12.4 | - | +26% | |
| $88B | 55.1 | 2.15 | +4% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
AYI Historical P/E Data (2002–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | Nov 30 2025 | $366.42 | $12.99 | 28.2x | +37% |
| FY2025 Q4 | Aug 31 2025 | $326.47 | $12.53 | 26.1x | +26% |
| FY2025 Q3 | May 31 2025 | $259.89 | $12.69 | 20.5x | -1% |
| FY2025 Q2 | Feb 28 2025 | $297.13 | $13.19 | 22.5x | +9% |
| FY2025 Q1 | Nov 30 2024 | $320.69 | $13.59 | 23.6x | +14% |
| FY2024 Q4 | Aug 31 2024 | $254.70 | $13.44 | 19.0x | -8% |
| FY2024 Q3 | May 31 2024 | $259.61 | $12.30 | 21.1x | +2% |
| FY2024 Q2 | - | $251.24 | $11.96 | 21.0x | +2% |
| FY2024 Q1 | - | $179.26 | $11.69 | 15.3x | -26% |
| FY2023 Q4 | - | $161.28 | $10.77 | 15.0x | -27% |
| FY2023 Q3 | May 31 2023 | $150.69 | $11.62 | 13.0x | -37% |
| FY2023 Q2 | - | $193.96 | $11.41 | 17.0x | -18% |
| FY2023 Q1 | Nov 30 2022 | $188.29 | $10.97 | 17.2x | -17% |
| FY2022 Q4 | Aug 31 2022 | $163.93 | $11.14 | 14.7x | -29% |
| FY2022 Q3 | - | $175.02 | $10.38 | 16.9x | -18% |
| FY2022 Q2 | Feb 28 2022 | $182.37 | $9.68 | 18.8x | -9% |
| FY2022 Q1 | - | $201.35 | $9.29 | 21.7x | +5% |
| FY2021 Q4 | - | $184.53 | $8.40 | 22.0x | +6% |
| FY2021 Q3 | May 31 2021 | $185.75 | $7.55 | 24.6x | +19% |
| FY2021 Q2 | Feb 28 2021 | $123.30 | $6.70 | 18.4x | -11% |
| FY2021 Q1 | Nov 30 2020 | $118.72 | $6.40 | 18.6x | -10% |
| FY2020 Q4 | Aug 31 2020 | $109.29 | $6.27 | 17.4x | -16% |
| FY2020 Q3 | May 31 2020 | $86.15 | $6.82 | 12.6x | -39% |
| FY2020 Q2 | Feb 29 2020 | $102.86 | $7.52 | 13.7x | -34% |
| FY2020 Q1 | Nov 30 2019 | $130.78 | $7.75 | 16.9x | -18% |
| FY2019 Q4 | Aug 31 2019 | $125.41 | $8.29 | 15.1x | -27% |
| FY2019 Q3 | May 31 2019 | $123.67 | $8.57 | 14.4x | -30% |
| FY2019 Q2 | - | $130.12 | $8.15 | 16.0x | -23% |
| FY2019 Q1 | Nov 30 2018 | $130.02 | $8.81 | 14.8x | -28% |
| FY2018 Q4 | Aug 31 2018 | $152.84 | $8.53 | 17.9x | -13% |
| FY2018 Q3 | - | $118.25 | $7.98 | 14.8x | -28% |
| FY2018 Q2 | Feb 28 2018 | $142.58 | $8.08 | 17.6x | -14% |
| FY2018 Q1 | - | $171.42 | $7.28 | 23.5x | +14% |
| FY2017 Q4 | - | $176.79 | $7.44 | 23.8x | +15% |
| FY2017 Q3 | May 31 2017 | $162.91 | $7.18 | 22.7x | +10% |
| FY2017 Q2 | - | $211.30 | $6.97 | 30.3x | +47% |
| FY2017 Q1 | Nov 30 2016 | $251.41 | $6.93 | 36.3x | +76% |
| FY2016 Q4 | Aug 31 2016 | $275.12 | $6.64 | 41.4x | +101% |
| FY2016 Q3 | - | $259.04 | $6.13 | 42.3x | +105% |
| FY2016 Q2 | Feb 29 2016 | $209.43 | $5.92 | 35.4x | +71% |
| FY2016 Q1 | Nov 30 2015 | $230.88 | $5.50 | 42.0x | +103% |
| FY2015 Q4 | Aug 31 2015 | $194.87 | $5.10 | 38.2x | +85% |
| FY2015 Q3 | May 31 2015 | $176.49 | $4.98 | 35.4x | +72% |
| FY2015 Q2 | Feb 28 2015 | $158.48 | $4.51 | 35.1x | +70% |
| FY2015 Q1 | Nov 30 2014 | $138.20 | $4.19 | 33.0x | +60% |
| FY2014 Q4 | Aug 31 2014 | $123.88 | $4.05 | 30.6x | +48% |
| FY2014 Q3 | May 31 2014 | $125.51 | $3.82 | 32.9x | +59% |
| FY2014 Q2 | Feb 28 2014 | $141.05 | $3.54 | 39.8x | +93% |
| FY2014 Q1 | Nov 30 2013 | $102.53 | $3.36 | 30.5x | +48% |
| FY2013 Q4 | Aug 31 2013 | $85.50 | $2.94 | 29.1x | +41% |
| FY2013 Q3 | May 31 2013 | $75.07 | $2.69 | 27.9x | +35% |
| FY2013 Q2 | - | $68.13 | $2.75 | 24.8x | +20% |
| FY2013 Q1 | Nov 30 2012 | $66.15 | $2.64 | 25.1x | +21% |
| FY2012 Q4 | Aug 31 2012 | $64.16 | $2.73 | 23.5x | +14% |
| FY2012 Q3 | - | $54.50 | $2.77 | 19.7x | -5% |
| FY2012 Q2 | Feb 29 2012 | $62.19 | $2.60 | 23.9x | +16% |
| FY2012 Q1 | Nov 30 2011 | $50.25 | $2.59 | 19.4x | -6% |
| FY2011 Q4 | Aug 31 2011 | $46.04 | $2.45 | 18.8x | -9% |
| FY2011 Q3 | - | $60.96 | $2.27 | 26.9x | +30% |
| FY2011 Q2 | Feb 28 2011 | $56.52 | $2.13 | 26.5x | +29% |
| FY2011 Q1 | - | $53.86 | $1.85 | 29.1x | +41% |
| FY2010 Q4 | - | $38.74 | $1.82 | 21.3x | +3% |
| FY2010 Q3 | May 31 2010 | $41.13 | $1.86 | 22.1x | +7% |
| FY2010 Q2 | Feb 28 2010 | $38.98 | $1.89 | 20.6x | -0% |
| FY2010 Q1 | Nov 30 2009 | $32.28 | $2.06 | 15.7x | -24% |
| FY2009 Q4 | Aug 31 2009 | $32.11 | $2.01 | 16.0x | -23% |
| FY2009 Q3 | May 31 2009 | $27.18 | $2.36 | 11.5x | -44% |
| FY2009 Q2 | Feb 28 2009 | $22.92 | $2.85 | 8.0x | -61% |
| FY2009 Q1 | Nov 30 2008 | $26.96 | $3.33 | 8.1x | -61% |
| FY2008 Q4 | Aug 31 2008 | $43.51 | $3.57 | 12.2x | -41% |
| FY2008 Q3 | May 31 2008 | $53.25 | $3.74 | 14.2x | -31% |
| FY2008 Q2 | Feb 29 2008 | $44.41 | $3.62 | 12.3x | -41% |
| FY2008 Q1 | Nov 30 2007 | $39.49 | $3.35 | 11.8x | -43% |
| FY2007 Q4 | Aug 31 2007 | $43.75 | $3.40 | 12.9x | -38% |
| FY2007 Q3 | - | $50.55 | $3.15 | 16.0x | -22% |
| FY2007 Q2 | Feb 28 2007 | $46.10 | $2.90 | 15.9x | -23% |
| FY2007 Q1 | - | $43.85 | $2.67 | 16.4x | -20% |
| FY2006 Q4 | - | $35.58 | $2.38 | 14.9x | -28% |
| FY2006 Q3 | May 31 2006 | $33.22 | $2.04 | 16.3x | -21% |
| FY2006 Q2 | - | $32.88 | $1.85 | 17.8x | -14% |
| FY2006 Q1 | Nov 30 2005 | $25.89 | $1.33 | 19.5x | -6% |
| FY2005 Q4 | Aug 31 2005 | $24.59 | $1.15 | 21.4x | +4% |
| FY2005 Q3 | - | $20.44 | $1.15 | 17.8x | -14% |
| FY2005 Q2 | Feb 28 2005 | $23.02 | $1.13 | 20.4x | -1% |
| FY2005 Q1 | - | $24.50 | $1.55 | 15.8x | -23% |
| FY2004 Q4 | - | $19.16 | $1.55 | 12.4x | -40% |
| FY2004 Q3 | May 31 2004 | $20.53 | $1.28 | 16.0x | -22% |
| FY2004 Q2 | Feb 29 2004 | $20.34 | $1.23 | 16.5x | -20% |
| FY2004 Q1 | Nov 30 2003 | $19.86 | $1.20 | 16.6x | -20% |
| FY2003 Q4 | Aug 31 2003 | $14.91 | $1.15 | 13.0x | -37% |
| FY2003 Q3 | May 31 2003 | $13.80 | $1.18 | 11.7x | -43% |
| FY2003 Q2 | Feb 28 2003 | $11.07 | $1.16 | 9.5x | -54% |
| FY2003 Q1 | Nov 30 2002 | $11.31 | $1.23 | 9.2x | -55% |
| FY2002 Q4 | Aug 31 2002 | $11.66 | $1.26 | 9.3x | -55% |
| FY2002 Q3 | May 31 2002 | $14.07 | $1.05 | 13.4x | -35% |
Average P/E for displayed period: 20.6x
Full Stock Analysis
Deep dive into AYI consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
24+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
AYI — Frequently Asked Questions
Quick answers to the most common questions about buying AYI stock.
What is AYI's P/E ratio?
Acuity Brands, Inc. (AYI) trailing twelve-month P/E ratio is 25.3x, based on TTM diluted EPS of $13.00. The 5-year average P/E is 19.8x and the historical range spans 13.0x to 28.2x.
Is AYI stock overvalued or undervalued?
AYI trades at 25.3x P/E, above its 5-year average of 19.8x. The 90th percentile ranking within the 13.0x–28.2x historical range indicates a premium to historical valuation.
Is AYI stock expensive?
Yes, AYI is expensive relative to its own history. The current P/E of 25.3x is above the 5-year average of 19.8x. The stock sits at the 90th percentile of its 5-year valuation range.
What is AYI's historical P/E range?
Over the past 5 years, AYI's P/E ratio has ranged from 13.0x to 28.2x, with a median of 20.5x and an average of 19.8x. The current P/E of 25.3x places the stock at the 90th percentile of this range. Full historical data spans 2002–2026.
How does AYI's P/E compare to the S&P 500?
AYI trades at 25.3x P/E versus the S&P 500 median of 24.4x. The 4% premium to the market typically reflects higher expected earnings growth or quality.
How does AYI's valuation compare to Industrials peers?
Acuity Brands, Inc. P/E of 25.3x 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 AYI's PEG ratio?
AYI PEG ratio is 1.71, based on a P/E of 25.3x and EPS growth of -6.8%. A PEG between 1 and 2 suggests valuation aligns with growth expectations — typically considered fair.
What is AYI's earnings yield?
AYI earnings yield is 3.95%, the inverse of its 25.3x 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.