價量趨勢指標(PVT)

價量趨勢指標 (PVT) 是平衡交易量指標（OBV）的變體，它可以用來衡量趨勢強度並發出反轉信號。

交易信號
交易信號與OBV以及集散指標（AD）一致。PVT不可以單獨使用，應該與別的交易指標結合使用。

盤整期
當價格處於調整期時，註意PVT指標的上升和下降。
• 上升的PVT是趨勢向上突破的信號。
• 下降的PVT是趨勢向下突破的信號。

趨勢市場
上升的PVT是對上升趨勢的確認，下降的PVT是對價格下降的確認。
• PVT的看漲背離說明價格探底。
• 看跌背離是對價格達到頂部的預示。
 
示例
澳大利亞和新西蘭銀行集團有限公司股價(ANZ) ，以及    PVT指標

 
1. 在一番強勁的上升信號之後出現看跌背離：價格走出新高，而PVT高點逐漸降低。
2. 接下來出現三重看跌背離：價格繼續升高，而PVT高點降低。
3. 價格在2月底走出另一輪新高，而PVT仍然沒有超出前期高點。

公式
計算PVT指標的步驟如下：
1. 計算出收盤價的變化率：
           ( 今日收盤價 – 昨日收盤價 ) / 昨日收盤價
2. 變化率乘以交易量：
          變化率*今日交易量
3. 加上昨日PVT：
           變化率*今日交易量 +昨日 PVT

Price and Volume Trend
Price and Volume Trend (PVT) is a variation of On Balance Volume, used to determine the strength of trends and warn of reversals.
Trading Signals
Trading signals are the same as for OBV and Accumulation Distribution.
Price and Volume Trend should not be used on its own but in conjunction with other indicators.
Ranging Market
During a ranging market watch for a rising or falling Price and Volume Trend.
• Rising PVT signals an upward breakout.
• Falling PVT signals a downward breakout.
Trending Market
A rising Price and Volume Trend confirms an up-trend and a falling PVT confirms a down-trend.
• Bullish divergence between PVT and price warns of market bottoms.
• Bearish divergence between PVT and price warns of market tops.
EXAMPLE
Australia and New Zealand Banking Group Limited (ANZ) is shown with    Price Volume Trend.
1. After a strong up-trend there is a bearish divergence with price making a new high and Price and Volume Trend making a lower high.
2. This is followed by a triple divergence: price makes a higher peak while PVT is lower.
3. Price makes another new high at the end of February while PVT again fails to make a new high. Note theclassic divergence.
Setup
See Indicator Panel for directions on how to set up Price and Volume Trend. Edit Indicator Settings to alter the default settings.
Formula
The steps in the Price and Volume Trend calculation are:
1. Calculate the Percentage Change in closing price:
           ( Closing Price [today] - Closing Price [yesterday] ) / Closing Price [yesterday]
2. Multiply the Percentage Change by Volume:
           Percentage Change * Volume [today]
3. Add to yesterday's cumulative total:
           Percentage Change * Volume [today] + PVT [yesterday]

文章翻譯由兄弟財經提供

文章來源：http://www.incrediblecharts.com/indicators/price_and_volume_trend.php