Can I open a position in the yellow calendar?

It is best to avoid "no contradiction" or no contradiction. "Opening a warehouse" means buying and selling in ancient times, but now it means opening a warehouse. Since it is the Gregorian calendar, it means buying and selling. "Opening the market" is an old custom that all shops, large and small, are closed during the Spring Festival, from the first day of the Lunar New Year to the fifth day of the lunar new year, which means that they are open for business.