PEG Ratio of the US Stock Market
Price to earnings divided by earnings growth, for the largest US companies, built from their own filings. The growth is what each company has reported over the last three years, not an analyst forecast, so this is a trailing PEG: what the market pays for growth already delivered.
Bands follow the usual rule of thumb (below 1 cheap, above 2 expensive), a convention rather than a tested threshold. 142 of 325 companies have no PEG: losses or falling earnings.
Latest read
On October 6, 2026, the typical large US company trades at 1.98 times its trailing P/E per point of reported earnings growth: the PEG ratio of the median company among 183 with a defined PEG. That is the 5th highest of 52 quarterly readings since 2014. Weighted by size, the 310 companies together trade at 28.2 times earnings that grew 19.6% a year over three years, a PEG of 1.44: lower than the typical company's because several of the largest companies grew earnings very quickly. 142 companies have no PEG because they lost money or their earnings per share fell.
Sources, methodology & freshnessSEC EDGAR XBRL filings for the covered companies (net income, reported diluted EPS and shares outstanding) and daily closing prices · Daily: prices move the P/E every session, and growth updates as each company files a new annual report.Data as of 2026-10-06 · Open ↓Close ↑
The typical company's PEG
Why the market-wide PEG cannot be ranked
The largest companies
The 40 largest companies by market value, with trailing P/E, the compound annual growth of their reported diluted earnings per share over three and five fiscal years, and the PEG on each. A dash means the ratio is undefined: a loss, negative earnings at the start of the window, or falling earnings per share.
Method
Market value over the last four quarters of net income, each quarter entering on the day it was first filed. It is the P/E published on Market P/E Ratio, from the same companies and the same filings.
The compound annual growth of reported annual diluted earnings per share, latest fiscal year against three and five years earlier, split-adjusted as filed. Most published PEG ratios use analysts’ forecasts instead, which we do not hold, so a reading here can differ widely from a brokerage figure.
A PEG is undefined with losses or falling earnings. Today 56 companies are out for losses at either end of the window, 83 for falling earnings per share and 3 for missing history. The median describes the 183 that remain.
One group throughout: companies with trailing earnings today and three years earlier, their combined value over their combined earnings, divided by the compound growth of those earnings. The companies are today’s, carried back, so earlier readings leave out companies that later shrank or disappeared.
Bands follow the usual rule of thumb (below 1 cheap, above 2 expensive), a convention rather than a tested threshold. 142 of 325 companies have no PEG: losses or falling earnings.
How PEG Ratio Works
- 1Take the P/E from the filingsEach company's price-to-earnings ratio is its market value over its last four quarters of net income, with every quarter entering on the day it was first filed. It is the same P/E the Market P/E Ratio page publishes, so the two cannot disagree.
- 2Divide by growth the company has reportedGrowth is the compound annual growth of reported diluted earnings per share over three years, and over five as a check. Most quoted PEG ratios use analysts' forecasts instead; this one uses delivered growth, so it measures what the market pays for growth that has already happened.
- 3Leave out what a PEG cannot describeA PEG is undefined for a company with losses or shrinking earnings. Those companies are left out of the PEG and counted beside it, because dropping them silently would make the typical reading look better than it is.
- 4Lead with the typical companyThe headline is the median company's PEG. The whole market's PEG is published too, but its denominator, the basket's earnings growth, swings so much from year to year that the ratio jumps around and is sometimes undefined.