S&P 500 Index: current P/E Ratio

27.66
Last update: 21 October 2024

The estimated P/E Ratio for S&P 500 Index is 27.66, calculated on 21 October 2024.

Considering the last 5 years, an average P/E interval is [18.55 , 22.75]. For this reason, the current P/E can be considered Expensive

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.

21 October 2024 · P/E Ratio: 27.66
21 October 2024 · P/E Ratio: 27.66 · 1Y Average: 24.56 · 1 Std Dev range: [22.99 , 26.12] · 2 Std Dev range: [21.43 , 27.68]
21 October 2024 · P/E Ratio: 27.66 · 5Y Average: 20.65 · 1 Std Dev range: [18.55 , 22.75] · 2 Std Dev range: [16.45 , 24.85]
21 October 2024 · P/E Ratio: 27.66 · 10Y Average: 18.25 · 1 Std Dev range: [16.15 , 20.34] · 2 Std Dev range: [14.06 , 22.44]
21 October 2024 · P/E Ratio: 27.66 · 20Y Average: 15.77 · 1 Std Dev range: [13.60 , 17.94] · 2 Std Dev range: [11.44 , 20.11]
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".
21 October 2024 · P/E Ratio: 27.66 · 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
( 27.66 )		 Deviation
vs μ		 Valuation
Last 1Y 24.56 1.56 [21.43 · 22.99 , 26.12 · 27.68]
+1.99 σ
Overvalued
Last 2Y 21.97 2.97 [16.03 · 19.00 , 24.95 · 27.92]
+1.91 σ
Overvalued
Last 3Y 20.56 2.70 [15.16 · 17.86 , 23.26 · 25.96]
+2.63 σ
Expensive
Last 4Y 20.79 2.14 [16.52 · 18.65 , 22.93 · 25.06]
+3.22 σ
Expensive
Last 5Y 20.65 2.10 [16.45 · 18.55 , 22.75 · 24.85]
+3.34 σ
Expensive
Last 6Y 19.67 2.38 [14.90 · 17.29 , 22.05 · 24.44]
+3.35 σ
Expensive
Last 7Y 19.19 2.34 [14.51 · 16.85 , 21.53 · 23.87]
+3.62 σ
Expensive
Last 8Y 18.82 2.15 [14.52 · 16.67 , 20.97 · 23.12]
+4.12 σ
Expensive
Last 9Y 18.46 2.11 [14.23 · 16.34 , 20.57 · 22.68]
+4.36 σ
Expensive
Last 10Y 18.25 2.09 [14.06 · 16.15 , 20.34 · 22.44]
+4.50 σ
Expensive
Last 11Y 17.86 2.10 [13.66 · 15.76 , 19.96 · 22.06]
+4.67 σ
Expensive
Last 12Y 17.54 2.15 [13.23 · 15.38 , 19.69 · 21.84]
+4.70 σ
Expensive
Last 13Y 17.13 2.25 [12.62 · 14.87 , 19.38 · 21.63]
+4.68 σ
Expensive
Last 14Y 16.73 2.44 [11.86 · 14.30 , 19.17 · 21.61]
+4.49 σ
Expensive
Last 15Y 16.51 2.50 [11.51 · 14.01 , 19.01 · 21.51]
+4.46 σ
Expensive
Last 16Y 16.20 2.51 [11.18 · 13.69 , 18.70 · 21.21]
+4.57 σ
Expensive
Last 17Y 15.99 2.48 [11.03 · 13.51 , 18.47 · 20.95]
+4.71 σ
Expensive
Last 18Y 15.86 2.34 [11.17 · 13.51 , 18.20 · 20.54]
+5.04 σ
Expensive
Last 19Y 15.74 2.25 [11.24 · 13.49 , 18.00 · 20.25]
+5.29 σ
Expensive
Last 20Y 15.77 2.17 [11.44 · 13.60 , 17.94 · 20.11]
+5.48 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 +10.15% 21 Oct
Short Term Price vs SMA50 +3.50% 21 Oct
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.