빌 윌리엄스 MomentumBill WilliamsZero Line Builder에서 사용 가능
Accelerator Oscillator
The Accelerator Oscillator is the Awesome Oscillator minus its own five-bar average, drawn as a two-colour histogram around zero. It measures whether momentum is speeding up rather than which way it points — and like AO it has no parameters at all, so there is nothing in it to optimise.
- Parameters
- None
- Signal level
- Zero
- Derived from
- AO − SMA(AO, 5)
예시용 — 합성 데이터로, 실시간 호가가 아닙니다.
What the Accelerator Oscillator tells you
AO measures momentum: the gap between a fast and a slow average of median price. AC measures what that gap is doing — it subtracts AO's own five-bar average from AO, leaving the part that is new. When AC is rising, momentum is building faster than it has been; when it is falling, momentum is still there but easing. Because it is a derivative of a derivative, it turns before AO does, which is both the reason to use it and the reason it produces more false signals than AO on its own.
- Above zero: acceleration is positive relative to the recent average
- Bar higher than the last: momentum is picking up, whatever the sign
- It turns earlier than AO — earlier is not the same as more often right
- 1 Compute AO: SMA(median, 5) − SMA(median, 34)
- 2 Take a 5-bar average of AO
- 3 Subtract the second from the first
공식 및 계산 세부 정보 표시
The Accelerator Oscillator is built on top of another indicator:
median = (high + low) / 2AO = SMA(median, 5) − SMA(median, 34)AC = AO − SMA(AO, 5)
Step two is the Awesome Oscillator, which measures momentum. Step three removes from it everything that was already there five bars ago, leaving the part that is new. If momentum is large but unchanged, AO is large and AC is near zero. If momentum is small but growing, AO is small and AC is positive. That is the distinction the indicator exists to draw.
In MQL5 the call is iAC(symbol, period) — the second argument is the timeframe, not a length. There is no period, no applied price and no method. Every window is fixed in the definition, which makes AC one of the very few MT5 indicators with nothing to optimise. The Builder’s node reflects that: shift, timeframe, variable name, and that is all.
The histogram has one buffer, and the colours are not part of it. MT5 paints each bar green when it is higher than the one before and red when it is lower, computing that at draw time. An EA cannot read a colour, so a rule that depends on one has to be rebuilt from values — the template does it with two AC nodes, one at shift 0 and one at shift 1, and the generated code differs only in the CopyBuffer start offset.
Two consequences are worth stating plainly. Colour and sign are independent: a green bar below zero is ordinary and means a decline that is easing, not a rise. And AC is a derivative of a derivative, so it turns earlier than AO and it is noisier for the same reason. Bill Williams published it as one component of a larger system alongside the Alligator and Fractals, not as a signal to trade on its own — which is why the Builder’s template pairs the colour rule with a zero condition rather than acting on colour alone.
신호
AC이 제공하는 백테스트 가능한 뚜렷한 신호 — 및 각 신호에 적합한 시장 상황.
Side of Zero
Builder로 구현 가능Colour Against Sign
Builder로 구현 가능Divergence from Price
고급 로직MT5 구현
MetaTrader 5가 실제로 계산하고 그리는 내용 — 이 페이지의 모든 규칙이 기준으로 삼는 사양입니다.
버퍼
| 인덱스 | 버퍼 | MT5 표시 방식 | 저장 값 |
|---|---|---|---|
| 0 | MAIN_LINE | Histogram | The AC value — AO minus SMA(AO, 5). One buffer, drawn as a histogram whose bars are coloured by whether each is higher or lower than the one before. The colour is not a second buffer; it is derived at draw time. |
플랫폼 참고
가장 잘 작동하는 경우 / 주의해서 사용
어떤 지표도 보편적인 우위를 가지지 않습니다. AC이 도움이 되는 곳 — 그리고 오해를 일으키는 곳.
가장 잘 작동하는 경우
- As an early warning alongside AO rather than instead of it
- Confirming that a move which just started is still gaining rather than fading
- Higher timeframes, where a derivative of a derivative is not pure noise
- Situations where you want no parameters to fit — there are none to fit
주의해서 사용
- On its own as an entry trigger; it changes colour constantly in quiet markets
- Reading colour as sign — a green bar below zero is common and means something else
- Comparing values across instruments; it is a price difference and carries the symbol's scale
- Expecting the saucer and twin-peak patterns to be expressible as nodes; they need multi-bar state
AC 전략 구축
신호를 진입 및 청산 규칙에 연결하고, 컴파일 가능한 MT5 EA를 내보내세요 — 코드 없이.
- AC read at the current bar (shift 0)
- AC read at the previous bar (shift 1) — the same indicator, one bar back
- A Constant of 0 for the current bar to be measured against
- AC now above AC then AND AC above zero → Open Buy · SL 50 / TP 150
- The mirrored pair below zero → Open Sell
- Stop then locks one step for every 20 pips of progress
AC을 다른 지표와 결합
하나의 지표만으로는 충분하지 않습니다. 이 조합들이 AC의 취약점을 보완합니다.
AC + Awesome Oscillator
- AO above zero
- AC higher than the previous bar
- Buy
No single-flow template pairs them, though both nodes exist. Start from AC Acceleration + Pitch Trail and add an AO node with a Compare against a Constant of 0, into the same AND gate.
Builder 열기 →AC + Alligator
- Alligator lines fanned out
- AC rising above zero
- Buy
No single-flow template combines them. Start from AC Acceleration + Pitch Trail and add Alligator nodes for Jaw and Lips with a Compare between them, gated with And.
Builder 열기 →AC + AMA
- Price above the AMA
- AC higher than the previous bar
- Buy
No single-flow template pairs AC with AMA. Start from AO Momentum + AMA Trend and swap the AO node for two AC nodes at shift 0 and 1 with a Compare between them.
Builder 열기 →매개변수
자신의 통화쌍과 시간 프레임에서 검증할 초기값 — 보장된 설정이 아닙니다.
| 매개변수 | 기본값 | 권장 테스트 범위 | 기능 |
|---|---|---|---|
| Shift | 0 | 0–30 | Which bar back the node reads the buffer from. This is the only meaningful setting the node has, and the template depends on it: two AC nodes at shift 0 and shift 1 are how 'this bar is higher than the last' — the thing MT5 shows as a colour — becomes a condition an EA can test. |
| Timeframe | Current | M1–MN1 | Which chart the reading comes from. Because AC has no period, the timeframe is the only way to make it slower or faster. |
| Applied price | Not applicable | — | iAC has no applied-price argument. The median price it works from, and the 5, 34 and 5 windows above it, are all fixed inside the indicator. |
초기 프리셋
There are none — iAC takes symbol and timeframe. Nothing else exists to preset.
시장 예시
AC이 작동하는 곳, 실패하는 곳, 그리고 필터가 결과를 어떻게 바꾸는지.
Acceleration confirming a fresh move
Price breaks out, AC is above zero, and each bar prints higher than the last. The pitch trail locks in a step for every 20 pips and the position is still open when the take profit is reached.
Colour changes with nothing behind them
A quiet session where AC alternates green and red around zero every few bars. Each flip is a valid colour change and none of them describes a move worth taking.
Rising bars on the wrong side of zero
A decline loses steam and AC prints several rising bars while still below zero. Read as a colour signal this is a buy; the template's zero condition declines it, which is the difference between 'falling more slowly' and 'rising'.
FAQ
- What is the difference between AC and AO?
- AO is the gap between a 5-period and a 34-period average of median price — a momentum reading. AC subtracts AO's own 5-bar average from AO, leaving only the part that is new — an acceleration reading. In practice AC changes direction before AO does, because a slowing rise still shows as a positive AO but as a falling AC. Bill Williams intended them to be read together: AO for direction, AC for whether that direction is still gaining.
- What settings should I use?
- There are none. iAC takes only a symbol and a timeframe; the 5, 34 and 5 windows are fixed inside the indicator. The only things you can vary are which timeframe you read it on and what you do with the signal. This is genuinely unusual — most oscillators invite a period search — and it means an AC backtest cannot be overfitted through the indicator itself.
- Why does my AC show green bars below zero?
- Because the colour reports the change, not the sign. A bar is green when it is higher than the previous bar, wherever it sits. Below zero, a run of green bars means momentum is still negative but becoming less so. Reading those greens as buy signals inverts the rule; the Builder's template requires the value to be above zero as well as rising for exactly this reason.
- Can an EA read the bar colour?
- Not directly — the colour is not a buffer, it is derived when the chart is drawn. What an EA can do is recreate it, by reading the indicator at the current bar and at the previous bar and comparing the two. That is what the template does with two AC nodes at shift 0 and shift 1, and it is why the generated code contains two CopyBuffer calls that differ only in their start offset.
- Can I build an Accelerator EA without coding?
- Yes. The AC Acceleration + Pitch Trail template places two AC nodes at shift 0 and shift 1, compares them to express 'higher than the last bar', and requires the current value to be above zero via a Constant node. The stop then locks in one step for every 20 pips of progress. Since AC has no parameters, the EA inputs are the stop distances and the pitch step.
- How should I validate settings before going live?
- Backtest on quality tick data, then run on a demo account before risking money. With no indicator parameters to search, the temptation moves to the exits — so hold back data your stop and target choices never saw, and check the trade count before reading the profit. A rule that fires on every colour change will produce a great many trades on short timeframes, most of them noise.