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DEMA and TEMA calculator

The double and triple exponential averages: moving averages with less lag than a plain EMA.

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The closes

The low-lag averages

The 20-bar TEMA is 2,443.90, rising, with the close 0.30 below it.

The three lines: The plain 20-bar EMA is 2,376.80, the DEMA 2,424.00 and the TEMA 2,443.90. The close is 66.80 from the EMA, 19.60 from the DEMA, 0.30 from the TEMA: the less lag, the closer the line keeps to the price.
How it is read: Traders use DEMA and TEMA where they would use an EMA: the slope for the trend, the close crossing the line, or a fast and slow pair crossing. They react sooner to a turn than an EMA of the same length.
Read it with care: Less lag means more noise: they overshoot after sharp moves and cross more often in sideways markets. They describe the past bars, not the next one.

The close, the 20-bar EMA, DEMA and TEMA on the last bars. The last bar is marked.

Bar	Close	EMA	DEMA	TEMA
7 ago	2,391.50	2,331.13	2,362.30	2,380.30
6 ago	2,380.50	2,335.83	2,368.29	2,385.74
5 ago	2,399.10	2,341.86	2,376.68	2,394.60
4 ago	2,412.50	2,348.58	2,386.18	2,404.90
3 ago	2,430.80	2,356.41	2,397.51	2,417.62
2 ago	2,427.40	2,363.17	2,406.47	2,426.66
1 ago	2,432.40	2,369.77	2,414.91	2,434.84
Last	2,443.60	2,376.80	2,424.00	2,443.90

Education only, not investment advice. The answer comes from the numbers you typed in, not from your account or the market. Simulated results are hypothetical and have limits: real trading has slippage, gaps, changing results and emotions. Trading leveraged products can lose money quickly, including all of it. Risk warning

Educational only, not financial advice; trading involves risk.

Taking the lag out of an average

Patrick Mulloy published both in 1994. An exponential average trails the price; an average of that average trails it by about twice as much. Doubling the EMA and taking away the EMA of the EMA cancels much of the lag: that is the DEMA. The TEMA does the same with three layers, and follows the price more closely still.

Compare with the plain averages in the moving average crossover calculator, the Hull moving average and the adaptive moving average, and size the trade with the position size calculator.

Not advice. Arithmetic on the closes you type; an indicator describes the past bars, not the next one.