Bull Flag Pattern — what it is and how to read it

Bullish pattern Classic and harmonic chart patterns

A sharp rally (the pole) followed by a small, downward-sloping or narrowing rest (flag/pennant); at most half of the pole is given back. Completes when the flag's upper line breaks.

How to read it

A bullish structure is only a candidate until its trigger (neckline / breakout level) is broken. StockFortuna draws the ▲ marker only on a green candle that closes above the trigger — a description of what the chart did, not a recommendation.

Our backtest: ⚪ Not backtested (added 9 Sep 2026) — information on the chart only; it does not enter the buying system.

BIST 100 stocks where our scan detected it (last 30 trading days, 19 Oct 2026)

No BIST 100 stock formed this pattern in the last 30 trading days — our scan re-checks it every day.

Try it on a live chart →

FAQ

What is the Bull Flag Pattern?
A sharp rally (the pole) followed by a small, downward-sloping or narrowing rest (flag/pennant); at most half of the pole is given back. Completes when the flag's upper line breaks.
Is the Bull Flag Pattern bullish or bearish?
It is a bullish (upside) pattern.
When is it marked on the chart?
Only when a green candle closes above the trigger (neckline / breakout level); the ▲ marker describes what the chart did, it is not a recommendation.
Has it been backtested?
⚪ Not backtested (added 9 Sep 2026) — information on the chart only; it does not enter the buying system.
How can I see the Bull Flag Pattern on a live chart?
Open StockFortuna → Markets → Chart Studio and pick it from the list; the pattern is detected automatically on real data.

Related

For information and education only — not investment advice.

The data and measures on this page are StockFortuna's own technical calculation, based on end-of-day, delayed data. This is not investment advice (no investment advisory service is provided under Turkish Capital Markets Law No. 6362). Verify from your own source before deciding. This English text is a convenience translation; the Turkish version is binding. Not investment advice · Risk disclosure · Data and method · Methodology and data sources · About · Cookie preferences