S&P 500 Year-over-Year Earnings Per Share Growth (TTM)

Live value temporarily unavailable.

Source: Company filings (aggregated)

Data updated daily

What it measures

The S&P 500 EPS growth rate measures the year-over-year percentage change in aggregate diluted earnings per share for index constituents on a trailing-twelve-month basis. A reading of +10% means that the aggregate earnings per share of the index grew 10% versus the equivalent twelve-month window one year earlier.

Why it matters

EPS growth is the most widely followed earnings metric because it directly drives per-share value and is the denominator input to P/E-based valuation. However, aggregate EPS growth conflates two distinct drivers: organic earnings improvement and share count reduction from buybacks. When EPS grows faster than net income, the difference is explained by share repurchase activity — a financial engineering effect rather than genuine operational improvement. Decomposing EPS growth into net income growth and share count change is therefore essential to understanding the quality and durability of the earnings trend.

How it is calculated

EPS Growth (YoY, TTM) = (Σ TTM Diluted EPS_t − Σ TTM Diluted EPS_t−4Q) ÷ |Σ TTM Diluted EPS_t−4Q| × 100

LENSE computes the S&P 500 EPS growth rate at the aggregate level — change in the sum of TTM diluted EPS across current index constituents relative to the prior-year period — rather than averaging individual company growth rates. TTM diluted EPS is constructed by summing the four most recently reported fiscal quarters per constituent using as-reported figures. The prior-year period is the same TTM window offset by four quarters. Constituents where the prior-period aggregate denominator is zero or negative are excluded from that period's calculation. Index constituency is resolved point-in-time using point-in-time index constituency.

Recent (monthly)

Recent data unavailable.

Data source: Company filings (aggregated). Computed and published by LENSE Analytics.