Spiral calendar is a very novel market measurement tool. Its founder is an American, Jarulan, and his theory is published in 1992. Spiral measurement is based on "monthly calendar". This is a calendar created by Jarulan himself, which is based on the length of the plastic moon of 29.5306 days.

Mathematical model of spiral calendar

Sn=Fn *E, where sn = market time length, Fn= Fibonacci number, and E= plastic moon length =29.53.

Basic ideas of spiral calendar

1. The stock market is an investment place, and investors' psychology is often influenced by the cycle of celestial bodies, among which the moon has the greatest influence.

2.FN is Fibonacci number, and its root formula FN is multiplied by the length e of the first month of the lunar calendar, that is, FNE, thus constructing a spiral, and the focus of the spiral is the new moon or the full moon.

Focus of spiral calendar

Generally speaking, focusing on the new moon near the vernal equinox or the full moon near the winter solstice can often get more accurate prediction results.

The origin of the spiral is the point. The focus of the spiral or part of the spiral often falls at the position where the moon phase is close to the seasonal change of the sun, or at the turning point of the emotional market, or at the golden section of the larger spiral. Spiral calendar units that can be roughly divided by other natural time units are in harmony with these time units, and the more they are used, the greater the impact on the market [1].

Using spiral calendar to analyze the trend of financial market can be said to be both a science and an art, and scientists are the market inflection points calculated by spiral calendar. The time is very clear, so you can't drill at will. When it comes to practical application, the accuracy is often extremely high. But the spiral calendar can also be described as an art, and analysts must explore the focus of the beginning of the spiral of time, otherwise it will be a thousand miles away.

Spiral calendar has a very special explanation for the market operation structure. This understanding holds that the market is like a coil spring of a mobile watch. When the time of the market spirals to the extreme, the market will expand rapidly. On the contrary, when the market time spirals to the extreme, there will be disastrous contraction.

Generally speaking, spiral calendar theory combines magic number, square root theory and moon period to capture the inflection point of the market.