Let us see the technical chart of NZDUSD on H4 time frame.
After the last buy signal by Doda-Donchian, we've witnessed a profit of about 238 pips at the time of writing this article. But looking at its weekly chart, it's time to book profit after the price touches 0.83900. Do not be greedy and enjoy the profit. It's immediate target is 0.8256.