Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The market in a dream indicates the mosque or the battlefield. Profit in the market is jihad (struggle), and loss is the opposite. An unknown market indicates being lost and confused.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The market indicates the world, heedlessness, and strife. Buying and selling in it indicates eagerness for the world. Each market has an interpretation according to what is sold in it.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The market is interpreted as seeking livelihood. A bustling market indicates sustenance and benefit, and stagnation indicates unemployment and poverty.