WAT
Waters
PE ratio, current and historical analysis
- Stocks
- Healthcare
- NYSE: WAT
- PE Ratio
The PE ratio for Waters stock stands at 101.91 as of Aug 21, 2026. This is calculated based on the TTM EPS of $4.03 and the stock price of $410.7 per share. An increase of 109% has been observed in the PE ratio compared to its average of 48.6 of the past four quarters.
WAT PE ratio history
Over the last ten years, the average PE ratio of Waters has been 73.48. The current 101.91 price-to-earnings ratio is 39% more than the historical average. Analyzing the last ten years, WAT's PE ratio reached its highest point in the Dec 2017 quarter at 772.76, with a price of $193.19 and an EPS of $0.25. The Dec 2016 quarter saw the lowest point at 20.8, with a price of $134.39 and an EPS of $6.46.
Waters PE ratio by year
Maximum annual increase: 3,615.19% in 2017
Maximum annual decrease: -96.83% in 2018
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 35.17 | 1.91% | $379.83 | $10.8 |
| 2024 | 34.51 | 13.93% | $370.98 | $10.75 |
| 2023 | 30.29 | 4.34% | $329.23 | $10.87 |
| 2022 | 29.03 | -12.35% | $342.58 | $11.8 |
| 2021 | 33.12 | 12.46% | $372.6 | $11.25 |
| 2020 | 29.45 | 10.42% | $247.42 | $8.4 |
| 2019 | 26.67 | 8.99% | $233.65 | $8.76 |
| 2018 | 24.47 | -96.83% | $188.65 | $7.71 |
| 2017 | 772.76 | 3,615.19% | $193.19 | $0.25 |
| 2016 | 20.8 | -11.9% | $134.39 | $6.46 |
| 2015 | 23.61 | 7.22% | $134.58 | $5.7 |
| 2014 | 22.02 | 16.02% | $112.72 | $5.12 |
| 2013 | 18.98 | 14.41% | $100 | $5.27 |
| 2012 | 16.59 | 6.89% | $87.12 | $5.25 |
| 2011 | 15.52 | -17.53% | $74.05 | $4.77 |
Waters PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Jul 2026 | 94.12 | 144.09% | $379.29 | $4.03 |
| Apr 2026 | 38.56 | 9.64% | $304.24 | $7.89 |
| Dec 2025 | 35.17 | 31.53% | $379.83 | $10.8 |
| Sep 2025 | 26.74 | -15.54% | $291.71 | $10.91 |
| Jun 2025 | 31.66 | -3.33% | $352.41 | $11.13 |
| Mar 2025 | 32.75 | -5.1% | $362.16 | $11.06 |
| Dec 2024 | 34.51 | 1.5% | $370.98 | $10.75 |
| Sep 2024 | 34 | 18.01% | $357.33 | $10.51 |
| Jun 2024 | 28.81 | -14.2% | $290.12 | $10.07 |
| Mar 2024 | 33.58 | 10.86% | $344.23 | $10.25 |
| Dec 2023 | 30.29 | 22.29% | $329.23 | $10.87 |
| Sep 2023 | 24.77 | 5.85% | $274.21 | $11.07 |
| Jul 2023 | 23.4 | -12.72% | $266.54 | $11.39 |
| Apr 2023 | 26.81 | -7.65% | $309.63 | $11.55 |
| Dec 2022 | 29.03 | 23.95% | $342.58 | $11.8 |
WAT Price vs fair value
WAT average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
The current PE ratio of WAT is above its 3, 5 and 10-year averages.
PE comparison
With a price to earnings (P/E) of 101.91, WAT stands higher than the Healthcare sector, the industry and its peers average. Looking at the Healthcare sector average of 24.52, Waters's price to earnings (P/E) is 316% higher.
WAT PE vs peers
Frequently asked questions
What is Waters's PE ratio?
The price to earnings ratio for WAT stock is 101.91 as of Aug 21, 2026.
What is the 3-year average PE ratio for Waters (WAT)?
The average PE ratio for WAT stock over the past 3 years is 37.08.
What is the 5-year average PE ratio for Waters (WAT)?
The average PE ratio for WAT stock over the past 5 years is 33.42.
What is the highest PE ratio for WAT?
Over the last ten years, the Dec 2017 quarter recorded the highest quarterly PE ratio at 772.76.
How does the current PE ratio for WAT compare to its historical average?
The current PE ratio of WAT is 39% higher than the 10-year historical average.
Why is Waters's PE ratio so high?
WAT's PE ratio of 101.91 is considered high because the company's stock price is trading at a higher multiple of earnings.
How is WAT's PE ratio calculated (Waters PE ratio formula)?
The P/E ratio is calculated by taking the latest stock price and dividing it by the earnings per share(EPS) for the last 12 months. As of today (Aug 21, 2026), Waters's share price is $410.7. The company's earnings per share for the trailing twelve months (TTM) ending Jul 2026 is $4.03. Therefore, Waters's price to earnings ratio for today is 101.91. PE RATIO(101.91) = STOCK PRICE($410.7) / TTM EPS($4.03)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.