One month of the history is displayed only. For older daily data as well as for intraday Stochastics and PVO quotes it is recommended to use our index charts.
The PVO is displayed to highlight period of the high volume surges which indicate the moments of panic selling or greedy buying and which may lead to the oversold and overbought conditions. The comparison of overbought / oversold indication received from two different technical indicators one of which is based on the price and second of which is based on volume can substantially improve the results of the technical analysis and trading performance.
S&P Utility Index (^IXU) Stochastics shows how far the most recent IXU close price is away from the IXU lowest low and IXU highest high (in the calculated period):
If the 20-day Stochastics is greater than 80%, the security is close to a 20-day high;
If the 20-day Stochastics is below 20%, that security is close to a 20-day low.
The S&P Utility Index 1/9 PVO (Percentage Volume Oscillator) shows how high recent S&P Utility Index daily volume production is to the S&P Utility Index average volume generation over the past 9 trading days.
If the 1/9 PVO value is greater than 1.15, this indicates that we have a volume surge that exceeds the average volume output over the past 9 trading days by 15%.
The S&P Utility Index index will not always reverse when S&P Utility Index Stochastics exceeds 80% (or when it trades below 20%), just as the S&P Utility Index index will not always reverse when we see volume surges. However, the probability of a reversal is much higher when volume surges occur close to index highs or lows (as indicated by the Stochastics).
As a rule, Volume Surges (indicated by a high PVO) that appear during an index advance - when combined with closes near the highs (i.e., Stochastics > 80%) - indicate potential downside reversals.
As a rule, Volume Surges (indicated by a high PVO) that appear during an index decline - when combined with closes near the lows (i.e., Stochastics < 20%) - indicate potential upside reversals.
Ignore Volume Surges that appear when Stochastics exceeds 20% and is below 80%. Market reactions could be short-lived.