Free tools

Free, no sign-up: 203 U.S. stocks measured weekly against economic forces, with tools to explore, compare and test what you think you know.

• StocksEvery stock on record against rates, inflation, the dollar, oil and credit. Sort by any force, filter by name.
• SectorsHow each S&P 500 sector has moved with each force: the median move and how many stocks held up each way.
• Economic forcesNineteen forces, from oil and gold to the yen and bitcoin, and the stocks that moved up and down with each.
• What if?Pick a force, drag the size of the move, and see which stocks rose and fell most in weeks like it. Follow your own tickers too.
• Compare two stocksTwo stocks side by side, force by force, and where they clearly differ.
• Daily quizTen questions a day: when a force moved, did a stock rise, fall, or show no clear link?
• What changed this weekReadings that started or stopped holding up in the latest week, and the largest shifts.
• Track recordHow readings measured this way held up over the following year, out of sample, published whatever it shows.

For your own portfolio

Everything above reads one stock or one force at a time. The app measures a whole portfolio the same way, stress-tests it, and explains its past returns.

This describes the past, and it is not a forecast. Nothing here is a recommendation to buy, sell or hold any security.