什麼叫長倉,短倉?

長倉,
Long Position in English,

Means holding/buying the investment product (net balance is positive holding, e.g. hold 400 share of HSBC), normally feel such investment to grow.

短倉
Short Position in English
Means selling such investment product ro make the position of the holding is negative(e.g. sell short 400 shares of HSBC, ie when HSBC drops to make money after square the position)

The above is brief meaning, such investment stratgies are basic but can very complicated.