Trading math, not trade calls

Understand breakouts without market noise.

Free calculators and visual guides for breakout geometry, risk/reward and trading math. No live market data. No stock picks. No predictions. No signals.

  • Inputs stay in your browser
  • Synthetic examples
  • Transparent formulas
  • No accounts
SYNTHETIC EXAMPLENo ticker · No feed
reference levelfictional geometry only
Clear boundary

What PreBreakout is—and is not.

  • We do: show formulas, calculate user-entered values, explain chart vocabulary and use fictional visual examples.
  • We do not: publish market prices, tickers, rankings, watchlists, price targets for securities, BUY/SELL/HOLD labels or probability scores.
  • We do not: connect to brokers, portfolios or trading accounts.
  • We do not: claim that a chart pattern predicts a future outcome.

Read the methodology →