Indicator: Volume Price Confirmation Indicator (VPCI)

2014年5月14日

Developed by Buff Dormeier, VPCI won 2007 Charles H Dow award by the MTA. VPCI plots the relationship between price trend and the volume, as either being in a state of confirmation or contradiction.

Excerpt from article below:

"Fundamentally, the VPCI reveals the proportional imbalances between price trends and volume-adjusted price
trends. An uptrend with increasing volume is a market characterized by greed supported by the fuel needed to
grow. An uptrend without volume is complacent and reveals greed deprived of the fuel needed to sustain itself.
Investors without the influx of other investors (volume) will eventually lose interest and the uptrend should
eventually breakdown.

A falling price trend reveals a market driven by fear. A falling price trend without volume reveals apathy, fear
without increasing energy. Unlike greed, fear is self-sustaining, and may endure for long time periods without
increasing fuel or energy. Adding energy to fear can be likened to adding fuel to a fire and is generally bearish
until the VPCI reverses. In such cases, weak-minded investor's, overcome by fear, are becoming irrationally
fearful until the selling climax reaches a state of maximum homogeneity. At this point, ownership held by weak
investor’s has been purged, producing a type of heat death capitulation. These occurrences may be visualized by
the VPCI falling below the lower standard deviation of a Bollinger Band of the VPCI, and then rising above the
lower band, and forming a 'V' bottom. "

Full article: mta.org/eweb/docs/2007DowAward.pdf

Nearly all parameters are configurable and exposed via "Options" page (enable/disable BB, enable/disable breach-markings, enable/disable MA, ...).Also check the source for enabling "histogram" (difference between VPCI and MA of VPCI).

Do note that the shortTerm/longTerm lengths need tuning for your instrument. The default 5/20 is not optimal, in my quick check.