Usually, when a famous company triggers their Initial Public Offering, the medias will write it in their headlines, create a massive environment around it, making you think “Will this company make me a millionaire” ?
Then, the Fear Of Missing Out will appear, and could pump the price up to make it double or even triple depending how big the FOMO is. A good example is “Snowflake” (SNOW), a cloud data storage, which was supposed to do the first opening in a $75-$85 stock price range and ended up by opening at $245.