When the oscillator is above the overbought band (red lines) and crosses down the signal (dotted line), it is usually a good SELL signal. Similarly, when the oscillator crosses above the signal when below the Oversold band (green lines), it is a good BUY signal.
I have marked some cross-overs in the above chart. As you can see, they are *not* the only useful signals WT generates. Try it on your instrument and let me know what you think.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
// // @author LazyBear // // If you use this code in its original/modified form, do drop me a note. // study(title="WaveTrend [LazyBear]", shorttitle="WT_LB") n1 = input(10, "Channel Length") n2 = input(21, "Average Length") obLevel1 = input(60, "Over Bought Level 1") obLevel2 = input(53, "Over Bought Level 2") osLevel1 = input(-60, "Over Sold Level 1") osLevel2 = input(-53, "Over Sold Level 2") ap = hlc3 esa = ema(ap, n1) d = ema(abs(ap - esa), n1) ci = (ap - esa) / (0.015 * d) tci = ema(ci, n2) wt1 = tci wt2 = sma(wt1,4) plot(0, color=gray) plot(obLevel1, color=red) plot(osLevel1, color=green) plot(obLevel2, color=red, style=3) plot(osLevel2, color=green, style=3) plot(wt1, color=green) plot(wt2, color=red, style=3) plot(wt1-wt2, color=blue, style=area, transp=80)