Answer:
insiders can cheat the market.
Explanation:
They can do things on the inside to make a stock go up or down. this can be an advantage to buying in low and selling high. Elon Musk did something similar, (put this in your answer for a kick) as he used his social influence to lower his stock, by saying its "overpriced" making people sell it. when the stock fell, more investors used the buying in low strategy, and he split the stock to allow smaller investors to buy into the stock, giving him 8 BILLION dollars in one market day. (I LOVE THE STOCK MARKET, IF YOU WANT TO LEARN POST A COMMENT AND I WILL TEACH YOU A LOT!!)