A. O. Smith Corporation (AOS) P/E Ratio History
Historical price-to-earnings valuation from 1990 to 2026
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AOS Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, A. O. Smith Corporation (AOS) trades at a price-to-earnings ratio of 15.6x, with a stock price of $60.23 and trailing twelve-month earnings per share of $3.79.
The current P/E is 36% below its 5-year average of 24.3x. Over the past five years, AOS's P/E has ranged from a low of 15.5x to a high of 44.3x, placing the current valuation at the 5th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.5x, AOS trades at a 39% discount to its sector peers. The sector includes 413 companies with P/E ratios ranging from 0.0x to 185.3x.
The PEG ratio of 1.23 (P/E divided by 6% 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, AOS trades at a notable discount to the S&P 500 median P/E of 25.1x. 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 AOS 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.
AOS P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $18B | 23.7 | 1.23 | -1% | |
| $17B | 35.0 | 2.97 | -8% | |
| $11B | 100.2 | 18.43 | -36% | |
| $4B | 22.0 | 1.00Best | +65%Best | |
| $10B | 28.9 | 1.17 | +17% | |
| $12B | 18.4Lowest | 1.08 | +9% | |
| $56B | 39.5 | - | -72% | |
| $85B | 52.9 | 2.06 | +4% | |
| $104B | 36.2 | 1.21 | +15% | |
| $16B | 99.2 | - | -50% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
AOS Historical P/E Data (1990–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | $65.94 | $3.76 | 17.5x | -8% | |
| FY2025 Q4 | Wed Dec 31 2025 00:00:00 GM | $66.88 | $3.86 | 17.3x | -9% |
| FY2025 Q3 | $73.41 | $3.71 | 19.8x | +4% | |
| FY2025 Q2 | Mon Jun 30 2025 00:00:00 GM | $65.57 | $3.59 | 18.3x | -4% |
| FY2025 Q1 | Mon Mar 31 2025 00:00:00 GM | $65.36 | $3.58 | 18.3x | -5% |
| FY2024 Q4 | $68.21 | $3.63 | 18.8x | -2% | |
| FY2024 Q3 | Mon Sep 30 2024 00:00:00 GM | $89.83 | $3.80 | 23.6x | +24% |
| FY2024 Q2 | Sun Jun 30 2024 00:00:00 GM | $81.78 | $3.88 | 21.1x | +10% |
| FY2024 Q1 | Sun Mar 31 2024 00:00:00 GM | $89.46 | $3.86 | 23.2x | +21% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $82.44 | $3.70 | 22.3x | +17% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $66.13 | $2.00 | 33.1x | +73% |
| FY2023 Q2 | Fri Jun 30 2023 00:00:00 GM | $72.78 | $1.80 | 40.4x | +111% |
Average P/E for displayed period: 19.1x
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Start ComparisonAOS — Frequently Asked Questions
Quick answers to the most common questions about buying AOS stock.
Is AOS stock overvalued or undervalued?
AOS trades at 15.6x P/E, below its 5-year average of 24.3x. At the 5th percentile of historical range, the stock is priced at a discount to its own history.
How does AOS's valuation compare to peers?
A. O. Smith Corporation P/E of 15.6x compares to sector median of 25.5x. The discount suggests lower growth expectations or higher risk.
What is AOS's PEG ratio?
AOS PEG ratio is 1.23. Between 1-2 suggests valuation aligns with growth. Historical P/E data spans 1990-2026.