The technical indicators in foreign exchange are generally single-line MACD.

In MACD, the trend of single-line MACD is more stable than that of double-line MACD, that is, the high signal accuracy will not lag, and the double-line MACD is more sensitive, which makes the false signal base increase.

There are some visual differences between single-line MACD and double-line MACD.

In the single-line MACD indicator chart, the 0 axis is still very important, which is no different from the double line.

The line in single-line MACD is DEA in double-line MACD, which is a slow line. This is the same.

The difference is that the column lines of single-line MACD actually express the differences in double-line MACD. In other words, if you connect the end points of the column line of the single-line MACD into a smooth curve, it will be the same as the DIFF of the double-line MACD.

It is difficult to observe the column line. In double-line MACD, the column line is actually the difference between fast line and slow line. In a single-line MACD, the column line becomes the value of the fast line. The difference between fast line and slow line can be obtained by observing the difference between the end points of single-line MACD and DEA (slow line) columns.

Single-line MACD and double-line MACD are essentially the same, but they are different in performance or vision. Recommend two-line MACD. Because both DIFF, DEA and MACD columns play an important role in judging the market.

The following figure shows the comparison between double-line MACD and single-line MACD, and you can observe the comparison.