S&P 500 Index: current P/E Ratio

25.27
Last update: 13 March 2025

The estimated P/E Ratio for S&P 500 Index is 25.27, calculated on 13 March 2025.

Considering the last 5 years, an average P/E interval is [19.11 , 23.89]. For this reason, the current P/E can be considered Overvalued

P/E Ratio is calculated on the SPY Etf, whose benchmark is the S&P 500 Index.

Historical P/E Ratio

When evaluating the P/E Ratio, it's important to not only look at its absolute value but also compare it to the average of previous periods. This allows for a more comprehensive understanding of the index/market valuation.

The following chart shows how the S&P 500 Index P/E Ratio has changed over time. Furthermore, for some trailing timeframes, you can view the average P/E and standard deviation.

13 March 2025 · P/E Ratio: 25.27
13 March 2025 · P/E Ratio: 25.27 · 1Y Average: 26.48 · 1 Std Dev range: [25.77 , 27.18] · 2 Std Dev range: [25.07 , 27.89]
13 March 2025 · P/E Ratio: 25.27 · 5Y Average: 21.50 · 1 Std Dev range: [19.11 , 23.89] · 2 Std Dev range: [16.72 , 26.28]
13 March 2025 · P/E Ratio: 25.27 · 10Y Average: 18.65 · 1 Std Dev range: [16.27 , 21.02] · 2 Std Dev range: [13.90 , 23.40]
13 March 2025 · P/E Ratio: 25.27 · 20Y Average: 15.92 · 1 Std Dev range: [13.56 , 18.29] · 2 Std Dev range: [11.19 , 20.65]
Methodology
The Average P/E (μ) and the Standard Deviation (σ) are calculated excluding 20% outliers (i.e. over a range of values excluding 10% of observations from the top and 10% from the bottom of the dataset).
A P/E between (μ - σ) and (μ + σ) is considered "Fair", over a specific timeframe.
A P/E greater than (μ + σ) is defined "Overvalued", greater than (μ + 2σ) is defined "Expensive".
A P/E less than (μ - σ) is defined "Undervalued", less than (μ - 2σ) is defined "Cheap".
13 March 2025 · P/E Ratio: 25.27 · Last Periods metrics
Show all periods
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Range
Analysis
Period Average P/E
(μ)		 Std Dev
(σ)		 Std Dev Range
[ μ-2σ · μ-σ , μ+σ · μ+2σ ]		 vs Current P/E
( 25.27 )		 Deviation
vs μ		 Valuation
Last 1Y 26.48 0.70 [25.07 · 25.77 , 27.18 · 27.89]
-1.72 σ
Undervalued
Last 2Y 24.34 2.09 [20.15 · 22.24 , 26.43 · 28.52]
+0.45 σ
Fair
Last 3Y 21.59 3.47 [14.65 · 18.12 , 25.06 · 28.53]
+1.06 σ
Overvalued
Last 4Y 21.35 2.76 [15.82 · 18.58 , 24.11 · 26.88]
+1.42 σ
Overvalued
Last 5Y 21.50 2.39 [16.72 · 19.11 , 23.89 · 26.28]
+1.58 σ
Overvalued
Last 6Y 20.48 2.60 [15.28 · 17.88 , 23.08 · 25.67]
+1.84 σ
Overvalued
Last 7Y 19.72 2.74 [14.24 · 16.98 , 22.46 · 25.20]
+2.03 σ
Expensive
Last 8Y 19.30 2.46 [14.38 · 16.84 , 21.76 · 24.22]
+2.43 σ
Expensive
Last 9Y 18.91 2.38 [14.15 · 16.53 , 21.28 · 23.66]
+2.68 σ
Expensive
Last 10Y 18.65 2.38 [13.90 · 16.27 , 21.02 · 23.40]
+2.79 σ
Expensive
Last 11Y 18.24 2.30 [13.63 · 15.94 , 20.54 · 22.84]
+3.06 σ
Expensive
Last 12Y 17.89 2.31 [13.26 · 15.58 , 20.21 · 22.52]
+3.19 σ
Expensive
Last 13Y 17.48 2.33 [12.82 · 15.15 , 19.82 · 22.15]
+3.34 σ
Expensive
Last 14Y 17.08 2.52 [12.04 · 14.56 , 19.59 · 22.11]
+3.25 σ
Expensive
Last 15Y 16.79 2.65 [11.48 · 14.13 , 19.44 · 22.09]
+3.20 σ
Expensive
Last 16Y 16.51 2.60 [11.31 · 13.91 , 19.12 · 21.72]
+3.37 σ
Expensive
Last 17Y 16.22 2.66 [10.90 · 13.56 , 18.88 · 21.54]
+3.40 σ
Expensive
Last 18Y 16.06 2.53 [11.00 · 13.53 , 18.59 · 21.12]
+3.64 σ
Expensive
Last 19Y 15.94 2.44 [11.05 · 13.50 , 18.38 · 20.83]
+3.82 σ
Expensive
Last 20Y 15.92 2.36 [11.19 · 13.56 , 18.29 · 20.65]
+3.95 σ
Expensive

S&P 500 Index Trend

Trend is evaluated considering the price of the SPY Etf and its 200/50-day moving averages (SMA).

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Trend Indicator Valuation Margin
Long Term Price vs SMA200 -3.43% 13 Mar
Short Term Price vs SMA50 -6.80% 13 Mar
The 200-day moving average is a long-term indicator that takes into account the average price of a stock over the past 200 trading days. It is considered a significant level of support or resistance, meaning that when the stock price is above the 200-day moving average (i.e. margin vs moving average is positive), it is generally viewed as bullish, while when it is below, it is viewed as bearish.

The 50-day moving average, on the other hand, is a shorter-term indicator that measures the average price of a stock over the past 50 trading days. It is also viewed as a significant level of support or resistance and can be used to identify shorter-term trends.