Start with its own history
At 9.58×, ISAE3.SA is 12.6% above its 10-observation annual average. A lower multiple can reflect a lower price, higher earnings, or weaker growth expectations—not necessarily a bargain.
SAO · ISAE3.SAIndependent Power ProducersUpdated Oct 22, 2026
Isa Energia Brasil S.A. P/E ratio
Current valuation, historical context, and peer comparisons.
Current P/E ratio
9.58×
12.6% abovethe 10-year annual average
Share price35.59
÷Earnings per share3.715
Price and EPS in quote currency. Calculation details
Investors are paying 9.58 for every 1 of reported earnings per share.
P/E over time
2014 – 2023
Annual P/ESelected-period average 8.51×
3-year average7.81×3 positive annual observations
5-year average7.49×5 positive annual observations
10-year average8.51×10 positive annual observations
Peer median · TTM4.45×3 peers with positive P/E
Historical P/E ratios
Annual period-end data · 20 observations
| Period end | P/E | Change |
|---|---|---|
| Dec 31, 2023 | 8.32× | -1.3% |
| Dec 31, 2022 | 8.43× | +26.1% |
| Dec 31, 2021 | 6.68× | +16.1% |
| Dec 31, 2020 | 5.75× | -30.6% |
| Dec 31, 2019 | 8.29× | +39.0% |
| Dec 31, 2018 | 5.96× | -16.1% |
| Dec 31, 2017 | 7.10× | +263.5% |
| Dec 31, 2016 | 1.95× | -85.8% |
View all 20 annual observations +
| Period end | P/E | Change |
|---|---|---|
| Dec 31, 2015 | 13.72× | -27.2% |
| Dec 31, 2014 | 18.85× | -90.8% |
| Dec 31, 2013 | 205.54× | +2478.7% |
| Dec 31, 2012 | 7.97× | -11.2% |
| Dec 31, 2011 | 8.97× | -20.9% |
| Dec 31, 2010 | 11.35× | +15.8% |
| Dec 31, 2009 | 9.80× | N/M |
| Dec 31, 2008 | N/M | N/M |
| Dec 31, 2007 | 6.18× | -100.0% |
| Dec 31, 2006 | 36200.00× | +246.6% |
| Dec 31, 2005 | 10442.86× | +197764.7% |
| Dec 31, 2004 | 5.28× | N/M |
Change is relative to the preceding observation. N/M values are excluded from averages.
How ISAE3.SA compares
Company P/E vs. peer trailing-12-month ratios
| Company | P/E ratio |
|---|---|
 ISAE3.SA This stockIsa Energia Brasil S.A. | 9.58× |
 ISAE4.SAISA Energía Brasil S.A. | 6.64× |
 TAEE3.SATransmissora Aliança de Energia Elétrica S.A. | 3.64× |
 ALUP3.SAAlupar Investimento S.A. | 4.45× |
Peers are selected by the data provider. Business models and earnings definitions can differ.
Put the numbers in context
What does ISAE3.SA’s P/E tell you?
Compare like with like
The median of the 3 positive peer ratios above is 4.45×. Check growth, margins, debt, and earnings quality before interpreting the gap. A faster-growing business may justify a higher multiple.
Check what drives earnings
One-off gains can temporarily lower P/E; unusual charges can raise it. Reported earnings and forward estimates answer different questions. Pair this view with return on equity and liquidity for a fuller picture.
Keep your research connected
Take ISAE3.SA into your spreadsheet
Pull historical P/E into Excel or Google Sheets with Wisesheets. Build your own comparisons alongside the rest of your financial model.
Explore WisesheetsQuarterly P/E · latest quarterLQ selects the latest reported quarter. Requires the Wisesheets add-in. See available data
=WISE("ISAE3.SA", "PE Ratio", "LQ")Sources & calculation methodology
Current P/E
Share price 35.59 ÷ EPS 3.715 = 9.58×. Data is supplied by Financial Modeling Prep through Wisesheets. Quote feed updated Oct 22, 2026; this is not a real-time trading quote.
History & averages
Annual and quarterly P/E observations are provided separately from the current quote. Averages use the latest 3, 5, or 10 annual observations, excluding missing and nonpositive ratios. Pre-IPO observations are omitted. These are period-end observations, not daily averages.
Data definitions and limitations
The current quote feed does not specify the exact EPS filing-period end or whether EPS is basic or diluted. We do not label it as forward P/E. Peer ratios are explicitly trailing-12-month (TTM) values. Historical observations do not include independently verified price and EPS inputs. Sources may update on different schedules; rounded inputs can produce small calculation differences. Historical comparisons describe past pricing, not an estimate of fair value.
ISAE3.SA P/E ratio: common questions
The essentials behind the numbers.
Isa Energia Brasil S.A.'s current P/E is 9.58× based on the quote data last updated Oct 22, 2026. It represents the share price divided by reported earnings per share. Prices and earnings may refresh on different schedules.
Annual P/E uses earnings for a completed fiscal year. Trailing-12-month (TTM) P/E uses the latest four quarters, while forward P/E uses forecast earnings. These are not interchangeable. This page labels peer ratios as TTM and shows dated annual or quarterly historical observations; it does not show forward estimates.
N/M means not meaningful: the feed has no positive P/E for that observation. Negative or zero earnings should not be ranked as a low positive valuation multiple. N/M observations are excluded from the averages shown above.
Divide the share price by earnings per share (EPS). For example, a share price of 100 and EPS of 5 gives a P/E of 20×. This page uses the price and EPS supplied together in the quote when both are positive.
Price timestamps, EPS definitions, share classes, adjustments, and fiscal periods can differ. A forward P/E also uses forecast earnings rather than reported earnings. Compare the inputs and as-of dates before comparing two displayed ratios.
Not necessarily. The average describes previous market pricing, not fair value. Changes in earnings quality, growth expectations, debt, accounting, and business risk can justify a different multiple today.