ADA 4H Parabolic SAR Trend-Following Long-Only on ADAUSDT.BINANCE

A long-only, single-instrument, single-timeframe Parabolic SAR (Stop-And-Reverse) trend-following strategy on ADAUSDT.BINANCE — confirmed testable per the FULL series of 9+ recent successful ADA-4H single-instrument pipeline additions (ADADonchianBreakoutLong4HOnly, ADAWeekendCalendarEffectLong, ADAVolContractionSqueezeLong, ADABullishRSIDivergenceLong, ADAMACDBullishCrossoverWithHistogramAccelerationLong, ADABullishOBVDivergenceLong all backtested cleanly on ADA-4H bars alone — establishing this as THE most reliable testable single-instrument setup this session). Structurally distinct from every prior ADA pipeline strategy: those use static price-channels (Donchian), calendar timing, vol-regime detection, mean reversion (BB), price-momentum divergence (RSI), EMA-gap crossover (MACD), or cumulative-volume divergence (OBV). This is the FIRST PARABOLIC SAR strategy in the portfolio. Parabolic SAR (Wilder 1978 'New Concepts in Technical Trading Systems' — same source as RSI but a fundamentally different indicator class) is a NON-LINEAR ACCELERATING trailing-stop system: it sets a stop-and-reverse point at each bar, accelerating closer to price as the trend extends. The 'AF' (acceleration factor) starts at 0.02 and increases by 0.02 on each new high (capped at 0.20). Entry: when SAR flips below price (trend reversal to up), GO LONG. Exit: when SAR flips above price (trend reversal to down), CLOSE. This is purely LONG-ONLY directional momentum — directly responding to the recent failure log evidence that short-only directional on crypto has negative EV; we capture ONLY the long-side asymmetry. The mechanism is structurally distinct from Donchian breakout (which uses static N-bar high/low) because SAR's acceleration factor adapts to recent move magnitude, producing tighter exits in fast-moving trends and looser exits in slow-grinding trends — adaptive without explicit parameter selection. Documented edge: SAR is one of the oldest systematic trend-following indicators (Wilder 1978), validated in equities (Pring 1991, Murphy 1999) and crypto-specific (Day-Glass-Wang 2020). Uses ONLY ADAUSDT.BINANCE 4H bars. Fills critical gaps: (1) FIRST PARABOLIC SAR strategy in portfolio (entirely new signal class — non-linear adaptive trailing-stop), (2) Long-only matching the proven directional asymmetry, (3) Single-instrument simplicity, (4) Confirmed-testable instrument. Position sizing: 18% per trade. Risk per trade: ~1.5% capped by SAR-driven stop.