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Friday, April 26, 2024
Knowledge BaseGlossary

Glossary

Algorithmic Trading can be a complex subject. Keep your knowledge current with this glossary of key concepts, terminology, and technical indicators.

Dark Cloud Cover

Dark Cloud Cover

Dark Cloud Cover

In candlestick charting, a pattern where a black candlestick follows a long white candlestick. It can be an indication of a future bearish trend.

Dead Cat Bounce

Dead Cat Bounce

A temporary recovery from a prolonged decline or bear market, followed by the continuation of the downtrend. A dead cat bounce is a small, short-lived recovery in the price of a declining security, such as a stock. Frequently, downtrends are interrupted by brief periods of recovery - or small rallies - where prices temporarily rise. This can be a result of traders or investors closing out short positions or buying on the assumption that the security has reached a bottom. A dead cat bounce is a price pattern that is usually identified in hindsight. Analysts may attempt to predict that the recovery will be only temporary by using certain technical and fundamental analysis tools.

Death Cross

Death Cross

Death Cross

A crossover resulting from a security's long-term moving average breaking above its short-term moving average or support level.

Deficit Spending

Deficit Spending

When a government's expenditures exceed its revenues, causing or deepening a deficit. This excess spending needs to be financed through borrowing, likely from foreign governments. The increased government spending can help stimulate the economy as more money flows in, but the jump in borrowing can have an adverse effect by raising interest rates.

Demarker Indicator

Demarker Indicator

An indicator used in technical analysis that compares the most recent price action to the previous period's price in an attempt to measure the demand of the underlying asset. This indicator is generally used to identify price exhaustion and can also be used to identify market tops and bottoms. This oscillator is bounded between -100 and +100 and, unlike many other oscillators, it does not use smoothed data.

Descending Tops

Descending Tops

Descending Tops

A pattern in charts where each peak in price is lower then the previous peak in price. The pattern signals a bearish trend in the security.

Descending Triangle

Descending Triangle

Descending Triangle

A bearish chart pattern used in technical analysis that is created by drawing one trendline that connects a series of lower highs and a second trendline that has historically proven to be a strong level of support. Traders watch for a move below support, as it suggests that downward momentum is building. Once the breakdown occurs, traders enter into short positions and aggressively push the price of the asset lower. The chart below is an example of a descending triangle:

Detrended Price Oscillator (DPO)

Detrended Price Oscillator (DPO)

Detrended Price Oscillator (DPO)

An oscillator that strips out price trends in an effort to estimate the length of price cycles from peak to peak, or trough to trough. Unlike other oscillators, such as the Stochastic or MACD, detrended price is not a momentum indicator. It highlights peaks and troughs in price, which are used to estimate entry and exit points in line with the historical cycle.  Calculation: Price (X/2 + 1) periods ago minus X-period simple moving average Where X is the number of periods; 20 or 30 periods is common.

Diamond Top Formation

Diamond Top Formation

A technical analysis reversal pattern that is used to signal the end of an uptrend. This relatively uncommon pattern is found by identifying a period in which the price trend of an asset starts to widen and then starts to narrow. This pattern is called a diamond because of the shape it creates on a chart.

Diffusion Index

Diffusion Index

1. A measure of the percentage of stocks that have advanced in price or are showing a positive momentum over a defined period. It is used in the technical analysis of stocks.

 2. A measure of the breadth of a move in any of the Conference Boards Business Cycle Indicators (BCI), showing how many of an indicators components are moving together with the overall indicator index.

Directional Movement Index - DMI

Directional Movement Index - DMI

An indicator developed by J. Welles Wilder for identifying when a definable trend is present in an instrument. That is, the DMI tells whether an instrument is trending or not.

Disaster Relief Act

Disaster Relief Act

A United States federal law passed in 1974 that laid down the process through which the president's declaration of a disaster triggers a system of financial and other assistance by the federal government to state and local governments. It was amended in 1988 by the Robert T. Stafford Disaster Relief and Emergency Assistance Act, which activates federal assistance through the Federal Emergency Management Agency (FEMA).
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