震盪指標 MomentumSelling PressureHistogram 在 Builder 中可用
Bears Power
Bears Power measures how far sellers can push the bar's low below an EMA baseline. It is the mirror of Bulls Power and the other half of Elder's Ray system — one side of the market isolated on purpose, rather than netted into a single reading.
- Default period
- 13
- Centre
- Zero line
- Pairs with
- Bulls Power
示意性 — 合成資料，非即時報價。
What Bears Power tells you
Bears Power reports how far below a moving baseline the sellers managed to drive the bar, using the low rather than the close. Like its counterpart it is deliberately one-sided: on its own it says how hard sellers pressed, not whether they won.
- Below zero: sellers pushed the low past the baseline
- Above zero: even the low stayed above it — unusual, and a strong bullish reading
- Falling while still positive: buying pressure is fading
- 1 Take an EMA of the close over 13 bars
- 2 Subtract it from the bar's low
- 3 Draw the difference around zero
顯示公式與計算詳情
Bears Power mirrors its counterpart exactly, measuring downward reach instead of upward:
- Compute an exponential moving average of the close over the chosen period — 13 bars by default.
- Subtract it from the current bar’s low:
Bears Power = Low − EMA(Close, 13). - Draw the result as a histogram around zero on buffer 0.
Using the low rather than the close is what separates this from an ordinary momentum reading. The close records where the bar finished after both sides had spent themselves; the low records the deepest point sellers reached at any moment during it. Measuring that depth against a lagging average asks how hard sellers pressed, not whether they succeeded — a bar can close higher while Bears Power records a serious excursion below the baseline.
The reading is unbounded and scales with the instrument, so a value of −0.0011 on EUR/USD and −4.6 on an index can describe equally strong selling. Only the sign, the direction of change, and the comparison against Bulls Power transfer between symbols.
In MQL5 the call is iBearsPower(symbol, period, ma_period) and it returns a handle to a single buffer. There is no applied-price argument — MT4’s version had one and MT5’s does not. Alexander Elder introduced the Elder-Ray system, of which this is one half, in Trading for a Living.
訊號
Bears Power 提供的可回測訊號 — 及每個訊號適合的市場狀態。
Turning Down Above Zero
Builder 可實現Paired With Bulls Power
Builder 可實現Divergence
進階邏輯MT5 實作
MetaTrader 5 實際計算與繪製的內容——本頁每條規則的依據。
緩衝區
| 索引 | 緩衝區 | MT5 中的繪製方式 | 存放內容 |
|---|---|---|---|
| 0 | MAIN_LINE | Histogram | Low minus the EMA of the same period, drawn as a histogram around zero. Negative means sellers pushed the bar below the baseline. One buffer and one colour — MT5 does not recolour the bars that cross to the positive side, and there is no signal line to cross. |
平台說明
最佳適用場景 / 謹慎使用
沒有任何指標具有普適優勢。以下是 Bears Power 發揮作用的場景 — 以及可能誤導的場景。
最佳適用場景
- Alongside Bulls Power
- Trending markets
- Higher timeframes
- As a confirmation rather than a trigger
謹慎使用
- Read entirely on its own
- Comparing values across instruments
- Very short baseline periods
- Optimised periods without validation
構建 Bears Power 策略
將訊號接入進場和出場規則，然後匯出可編譯的 MT5 EA — 無需撰寫程式碼。
- Bears Power (13)
- Bulls Power (13)
- Bears Power below zero → Open Sell · SL 40 / TP 80
- Bulls Power above zero → Open Buy
將 Bears Power 與其他指標組合
單一指標很少獨立有效。這些組合彌補了 Bears Power 的盲點。
Bears Power + Bulls Power
- Bears Power below zero
- Bulls Power above zero
- Two-sided rule
Bears Power + Moving Average
- Price < MA
- Bears Power turning down
- Sell
No single-flow template pairs Bears Power with a moving average. Start from Elder Ray and add an MA node with a Price node into a Compare.
開啟 Builder →Bears Power + RSI
- RSI < 50
- Bears Power below zero
- Sell
No single-flow template pairs Bears Power with RSI. Start from Elder Ray and add an RSI node with a Compare at 50.
開啟 Builder →參數
在您自己的貨幣對和時間框架上驗證的起始值 — 非保證設置。
| 參數 | 預設值 | 建議測試範圍 | 功能說明 |
|---|---|---|---|
| Period | 13 | 8–21 | Length of the EMA baseline the low is measured against. Elder's 13 is the standard; shorter makes the baseline track price so closely that the reading hovers near zero. |
| Level | 0 | — | Your level, not an indicator input. Zero marks the baseline itself; other levels have no built-in meaning. |
| Shift | 0 | 0–3 | Which bar back the value is read from. Shift 1 compares against a fully closed bar. |
初始預設
Reactive 8 Baseline tracks price closely
Standard 13 Elder's default baseline
Slow 21 Larger, rarer excursions
市場示例
Bears Power 有效的場景、失效的場景，以及篩選器如何改變結果。
Both halves agree
Bears Power holds below zero while Bulls Power fades toward it — sellers are reaching past the baseline and buyers are losing their reach.
One side read alone
Bears Power is negative during an uptrend simply because the bar's low sits under a lagging EMA. Without the other half the reading looks bearish and is not.
Trend filter supplies direction
With a moving-average condition attached, the same negative readings inside an uptrend are all skipped — pressure and direction are different questions.
FAQ
- Should I use Bears Power on its own?
- It is not designed for that. Elder's Ray is a two-part system: Bears Power measures how far sellers reach below a baseline, Bulls Power how far buyers reach above it. Either half in isolation describes one side of a market that has two. The Builder's Elder Ray template holds both for exactly this reason.
- What does a positive Bears Power mean?
- That even the bar's low stayed above the EMA baseline — sellers could not push price down to its own recent average at any point in the bar. It is a genuinely strong bullish reading and comparatively rare, which makes 'falling while still positive' more informative than the sign alone.
- Why does Bears Power have no applied-price setting in MT5?
- Because the MQL5 signature dropped it. iBearsPower takes only symbol, timeframe and MA period — the EMA baseline is on the close and the measurement is from the low. MT4's version did accept an applied price, so a ported strategy loses that argument with no error.
- Bears Power or a plain momentum oscillator?
- They answer different questions. A netted oscillator such as MACD tells you the balance of the two sides; Bears Power tells you the depth one side reached, regardless of who won the bar. That makes it a confirmation tool — useful for asking whether an apparent trend has real selling behind it, less useful as a standalone trigger.
- Can I build a Bears Power EA without coding?
- Yes. The Elder Ray template wires both Bears and Bulls nodes into Compare nodes against zero, with the period as an EA input — and because both live in the same flow, a genuine two-sided rule needs nothing extra. Divergence is the exception and requires custom MQL5.
- How should I validate settings before going live?
- Backtest on quality tick data first, then run the EA on a demo account before risking money. When optimising, hold back data the search never saw and prefer settings that stay profitable across periods over the single in-sample peak — chasing that peak is overfitting the noise. No default or preset here is a performance promise; every value is a starting point to re-validate on your own pair and broker.