Daily analysis of S&P 500 stocks, built on observed data
TopStockUS tracks prices, total returns, valuation and risk for S&P 500 companies, with histories going back decades. Fewer stocks, analysed in depth, every day.
The app is in development for iPhone, iPad and Android.
What the app will show
Total return, four ways
Price only (TR0), with dividends reinvested (TR1), adding share buybacks (TR2), and net of new share issuance (TR3). Each one per share and daily.
Valuation
Price-earnings ratio and earnings yield, trailing and indicated dividend yield, and each stock's yield against the 10-year Treasury and the S&P 500.
Risk
Volatility over 1, 3, 6 and 12 months, and beta over 60 months of total returns, shown as a measure of correlated risk relative to the market.
Buybacks and issuance
Daily shares outstanding turned into how much each company returns to, or raises from, its shareholders, alongside its dividends.
The index as a security
The S&P 500 with the same metrics as a stock: price, dividends, yield, PE and total return, for direct comparison.
Charts that compare
Log-scale price, valuation and risk through time, and any two stocks rebased side by side.
Observed data, explained gaps
Figures come from company filings with the SEC and from prices as they traded, with every source recorded. Where a number would mislead, it is left blank and the reason is shown, rather than filled with an estimate.
A company earning a few cents a share can show a price-earnings ratio in the thousands. TopStockUS shows its earnings and earnings yield instead, and says why the ratio is not meaningful.
The rules behind every figure are published. Read the methodology.
Who it is for
Investors and traders who want more than a quote, and academics, journalists, regulators and institutions who need long, consistent daily histories.