In addition to looking at the "fundamentals" of a company like cash flow and profitability, there is also a 'meta-game' that traders (as opposed to investors) have to look at:
> A Keynesian beauty contest is a metaphorical beauty contest in which judges are rewarded for selecting the most popular choices among all judges, rather than those they may personally find the most attractive. This idea is often applied in financial markets, whereby investors could profit more by buying whichever stocks they think other investors will buy, rather than the stocks that have fundamentally the best value, because when other people buy a stock, they bid up the price, allowing an earlier investor to cash out with a profit, regardless of whether the price increases are supported by its fundamentals and theoretical arguments.
* https://en.wikipedia.org/wiki/Keynesian_beauty_contest
"whereby investors could profit more by buying whichever stocks they think other investors will buy, rather than the stocks that have fundamentally the best value"
Usually the public starts buying IPOs in open market operations on the secondary market, which removes some of the shiny and "limited" factor.
Edit: why would this get flagged lol?
It all depends on your broker. My Australian broker gave everyone ~40% of their request and refunded the rest (typical Australian practice for IPOs). An American friend put in for >20x as much as I did with his US broker, they gave him nothing and refunded the full amount.