How It Trades
- Track support (the lowest close of the previous 20 bars) and resistance (the highest).
- Buy when price closes below support and then snaps back above it on the next bar: a failed breakdown: sellers pushed under the floor and were rejected.
- Sell when the close reaches the 20-bar resistance.
Example Strategy
Pine Script
Paste it into TradingView’s Pine Editor to run these rules on any chart.
//@version=6
// Support Resistance Bounce — sort.finance. Fills at the signal bar's close, 0.02% fee a side,
// whole account per trade, as the backtest. History and indicator warm-up
// differ from the site's, so expect close to the same trades, not identical.
strategy("Support Resistance Bounce", overlay=true,
initial_capital=100, default_qty_type=strategy.percent_of_equity,
default_qty_value=100, commission_type=strategy.commission.percent,
commission_value=0.02, process_orders_on_close=true, pyramiding=0)
// The bar the current position opened on, and the bar the last one closed on.
var int entryBar = na
var int exitBar = -1
// ── Signals ──────────────────────────────────────────────────────────────
support = ta.lowest(close, 20)[1]
resistance = ta.highest(close, 20)[1]
// Back to support on the bar after a close below it.
enterNow = close[1] < support[1] and close >= support[1]
exitNow = close >= resistance
// ── Orders ───────────────────────────────────────────────────────────────
// Open on the first bar the entry holds while flat; close on the first
// later bar the exit holds; never reopen on the bar a position closed.
inTrade = strategy.position_size != 0
if inTrade and bar_index > entryBar and exitNow
strategy.close("Long")
exitBar := bar_index
else if not inTrade and bar_index > exitBar and enterNow
strategy.entry("Long", strategy.long)
entryBar := bar_index
// ── Drawing ──────────────────────────────────────────────────────────────
plot(support, "Support", color=#459b61)
plot(resistance, "Resistance", color=#b54a48)