Trading simple means profit,profit bt what:
Buying low and selling high
High sell and buy low back
So,in this regard trading also refer to holding,holding means:
To invest in currencies(bit coin,etherium,sol,etc)
To invest in commodities(gold,precious metal,etc)
To invest in stock(shares in companies)
The most imp question in this regard is that:Is trading require high asset????
There are too much example e.gwarren buff, they have only mind you can also earn if you have mind like that person.....