Here is the full list of all 12 Hedgie Simulator achievements.
Played the game.
Make first trade.
First short position opened.
You won!
Shorting 100 Dollars per second
Shorting 1000 Dollars per second
Shorting 10,000 Dollars per second
Shorting 100,000 Dollars per second
Shorting 1,000,000 Dollars per second
It said "Do not press" and you did it anyway
Purchased a JME Short
Reach 1 Billion in cash