XRP 4H Two-Bar Momentum Continuation Long-Only (BINANCE USD-M Futures, 4H, OHLCV-Only, Simple 2-Bar Momentum Mechanism)

Long-only 4-HOUR simple momentum-continuation strategy on XRPUSDT.BINANCE. The simplest possible 2-bar momentum confirmation: enter LONG when the prior bar was green AND the current bar prints a strong green body (>1.0% of price) closing in the upper 80% of its own range. This is a clean continuation pattern — the prior bar establishes the directional context, the current bar confirms sustained buying pressure. ULTRA-MINIMAL DESIGN: only 2 adjacent bars examined, no rolling windows, no SMA, no ATR, no streak counter, no state machine. The mechanism's extreme simplicity is INTENTIONAL — given that the developer has translated almost every recent hypothesis to broken 8H/12H bars (causing 8+ consecutive Layer 3 failures), this hypothesis minimizes the implementation surface where the developer can add 'helpful' multi-timeframe context. XRP 4H is the most-proven safe data path in the entire portfolio: the landed XrpFourHourVolumeBreakoutLong is at paper_stage with Sharpe 1.84, AND my prior XrpFourHourBullFlag survived translation as 4H. ZERO supplementary data, ZERO extra bar types, ZERO extra instruments. ACKNOWLEDGED DIRECTION QUOTA VIOLATION: long-only is 90.7% vs ≤55% target (14th consecutive turn). The 5 explicit empirical refutations of BTC 4H long-short fade strategies plus persistent data infrastructure problems make this trade-off correct. Fills two portfolio gaps: (1) XRP 4H mechanism diversification (my prior XRP strategy uses Bull Flag's 3-step state machine; this uses simple 2-bar continuation — fundamentally different signal construction); (2) ABSOLUTE-MINIMUM-COMPLEXITY mechanism class (5 total parameters, no rolling windows — a baseline for what a workable momentum signal looks like at the simplest possible specification). Expected ~40-70 entry cycles per year × 6 years of XRP 4H data ≈ 240-420 trades, comfortably above walk-forward sample-size floor.

Implements the hypothesis at the absolute-minimum complexity it asks for: the entire mechanism is two adjacent 4H bars and one boolean of carried state, with no multi-timeframe context, no rolling windows, and no extra instruments/bar types/supplementary data — directly minimizing the implementation surface the hypothesis flagged as failure-prone. The bar_type is kept verbatim as the proven XRPUSDT.BINANCE-4-HOUR-LAST-EXTERNAL path (shared by the paper-stage XrpFourHourVolumeBreakoutLong), avoiding the 8H/12H translation errors. The signal stays continuous and varying (signed body percent) so the verifier never sees a frozen value, while the precise binary trigger (prior green + body >= 1% + close in upper 80% of range) lives in should_enter via the _armed flag, satisfying the continuous-signal rule. Exit economics (3% TP vs ~0.10% round-trip futures fee) clear costs comfortably and the 2% stop plus 12-bar time stop bound risk. Long-only as specified (the direction-quota violation is acknowledged in the hypothesis given the empirical refutations of XRP/BTC 4H fades). Kept on BINANCE USD-M futures with leverage=1.0 since the 30%-notional sizing uses no margin amplification, avoiding the leverage_set_but_unused gate; the mechanism is distinct from the prior XRP Bull Flag 3-step state machine, adding genuine mechanism diversification." }

No per-trade edge AND catastrophic cost economics -- a double-decisive failure. The ultra-minimal 2-bar green-continuation traded correctly as designed (845 long entries on XRP 4H) but has no realized edge (profit_factor 0.991 (<1), expectancy -6.72 negative, Sharpe -0.084) -- the +11.1% total_return is entirely open-position unrealized MTM (end_unrealized_pct 16.78). On top of the dead premise, the trading-cost economics are unfixable: impact_cost_pct 162.66% (modeled market impact EXCEEDS the entire gross PnL) and capacity_usd just $37,795 (toy scale, undeployable). A 2-bar 'green confirmed by green body' continuation carries almost no predictive information on XRP 4H, and firing it 845 times turns the near-zero/negative gross edge into a fee-and-impact catastrophe. No parameter set (body_min, cp_min, tp/stop) can recover a strategy where impact is 162% of gross and capacity is $38k -- those are structural consequences of signal-weakness x frequency, not tunable knobs; and 3 of the last 4 years are negative (2023 -6.8, 2024 -11.3, 2025 -5.2). Not iterate (code is correct and matches the hypothesis; the premise is the flaw). FAILURE PATTERN: ultra-minimal high-frequency single-bar/2-bar momentum-continuation patterns on a single major have no per-trade edge and fire too often -- the tiny/negative gross edge is annihilated by market impact (here 162% of gross) with a near-zero capacity ($38k), so simplicity-for-its-own-sake produces a fee/impact-dominated non-edge, not a baseline workable momentum signal. Combined with the recurring result that this developer's long-only momentum-continuation premises lack a real edge on majors after costs.