Blackflag FTS
ATR SuperTrend trail with extreme tracking + Fibonacci pullback levels.
What it is
ATR SuperTrend trail with extreme tracking + Fibonacci pullback levels.
Blackflag FTS (Fast Trail System) is a published Pine variant of SuperTrend. It swaps standard true range for a 'modified' true range that adjusts for gaps and recent-bar extremes, then runs the usual ATR-band trailing-stop logic on top of it for slightly earlier flips than vanilla SuperTrend.
On top of the trend line, Blackflag tracks `ex` — the highest high since the last bull flip or the lowest low since the last bear flip — and projects Fibonacci retracement levels from `ex` back toward the trend stop (61.8%, 78.6%, 88.6%). Those Fib lines are intended as pullback entry zones inside the active trend.
Use it the same way as SuperTrend, but treat the Fib levels as 'where to re-enter after a pullback' rather than as standalone reversal signals.
Live chart
TradingView has no built-in study for this indicator, so there's no live chart to embed here. It's a structure / smart-money tool — the best way to see it is to run it inside a strategy and backtest it.
The strategies below put this indicator to work — open one and backtest it.
Parameters
| Parameter | Default | Range |
|---|---|---|
| ATR period | 28 | 2 – 200 |
| ATR factor | 5 | 0.5 – 20 |
| Trail type | modified | — |
| Fib 1 | 0.618 | 0.01 – 0.99 |
| Fib 2 | 0.786 | 0.01 – 0.99 |
| Fib 3 | 0.886 | 0.01 – 0.99 |
Output fields
The named values this indicator exposes to your entry and exit rules.
Related strategies
Ready-made, runnable templates that use this indicator. Open one to inspect or backtest it.
Backtest this indicator
Drop this indicator into a rule-set, run it over years of BTC/USDT data, and see whether the edge is real or just curve-fit — no credit card required.