The questioner is quite right. There is indeed a future function effect when weekly or monthly cci is quoted directly in the newsletter, but this future function effect can be eliminated by writing an exponential formula under the daily line, and the daily changes of weekly cci and monthly cci can be seen. In order to verify the accuracy of the writing results, the indicators in the following figure also show the directly quoted weekly cci and monthly CCI with dotted lines, which can verify that it is correct to write the correct formula on the last day of each week or month. For example, the white realization below is that the cci of the weekly or monthly line has no future function effect, and the yellow dotted line is cci with future function effect.