Miha Kralj
4.5 KiB
TTM_SCALPER: TTM Scalper Alert
TTM Scalper spots pivot reversals in real time, marking the bars where short-term direction flips.
| Property | Value |
|---|---|
| Category | Reversal |
| Inputs | OHLCV bar (TBar) |
| Parameters | useCloses (default false) |
| Outputs | Single series (TtmScalper) |
| Output range | Varies (see docs) |
| Warmup | 1 bar |
| PineScript | ttmscalper.pine |
- John Carter designed TTM Scalper Alert for quick identification of potential reversal points using a simple three-bar pattern recognition.
- Similar: TTM_Trend, Super | Complementary: TTM Squeeze | Trading note: John Carter's scalper; short-term reversal signals based on pivot analysis.
- Validated against TA-Lib, Skender, and Tulip reference implementations where available.
Pending Implementation - Placeholder for John Carter's TTM Scalper Alert indicator
Historical Context
John Carter designed TTM Scalper Alert for quick identification of potential reversal points using a simple three-bar pattern recognition. The indicator marks pivot highs and lows that can serve as entry triggers for scalping strategies, particularly when combined with other TTM suite indicators.
Algorithm
Pivot High Detection
pivotHigh = high[1] > high[2] AND high[1] > high[0]
// Three consecutive bars where middle bar has highest high
Pivot Low Detection
pivotLow = low[1] < low[2] AND low[1] < low[0]
// Three consecutive bars where middle bar has lowest low
Alternative: Close-Based Version
pivotHigh = close[1] > close[2] AND close[1] > close[0]
pivotLow = close[1] < close[2] AND close[1] < close[0]
Default Parameters
| Parameter | Value | Description |
|---|---|---|
| UseCloses | false | Use close prices instead of high/low |
| ShowPaintBars | true | Color bars at pivot points |
Outputs
| Output | Type | Description |
|---|---|---|
| PivotHigh | bool | True on confirmed pivot high (painted on bar-1) |
| PivotLow | bool | True on confirmed pivot low (painted on bar-1) |
| PivotHighPrice | double | Price level of pivot high |
| PivotLowPrice | double | Price level of pivot low |
Visual Markers
- ▼ (Down Triangle): Pivot high - potential short entry
- ▲ (Up Triangle): Pivot low - potential long entry
- Markers appear one bar after confirmation (on the middle bar of the 3-bar pattern)
Trading Strategy
- Long Entry: Pivot low signal + TTM Squeeze firing bullish + TTM Trend bullish
- Short Entry: Pivot high signal + TTM Squeeze firing bearish + TTM Trend bearish
- Stop Placement: Beyond the pivot point high/low
Category
Reversals - Detects potential trend reversal points using simple 3-bar pivot pattern.
See Also
Performance Profile
Operation Count (Streaming Mode)
TTM Scalper Alert uses a 3-bar high/low range comparison with price action pattern matching — O(1) per bar.
| Operation | Count | Cost (cycles) | Subtotal |
|---|---|---|---|
| Update 3-bar high ring buffer | 1 | 3 cy | ~3 cy |
| Update 3-bar low ring buffer | 1 | 3 cy | ~3 cy |
| Compute 3-bar highest high | 1 | 4 cy | ~4 cy |
| Compute 3-bar lowest low | 1 | 4 cy | ~4 cy |
| Bar pattern comparison (buy/sell signal) | 1 | 3 cy | ~3 cy |
| NaN guard + state update | 1 | 2 cy | ~2 cy |
| Total | O(1) | — | ~19 cy |
O(1) per bar. All state fits in two RingBuffers of size 3. Signal logic is a branchless comparison between current price and the 3-bar extremes.
Batch Mode (SIMD Analysis)
| Operation | Vectorizable? | Notes |
|---|---|---|
| 3-bar rolling max (high) | Partial | Small window; scalar faster than SIMD setup |
| 3-bar rolling min (low) | Partial | Same — short window overhead |
| Signal comparison | Yes | Vector conditional-select for buy/sell |
| Output array fill | Yes | Branchless signal assignment |
Limited SIMD benefit due to 3-bar window size — setup cost exceeds savings. The comparison/signal phase is SIMD-friendly for batch output.