Start looking at IPO's from 5 months to 7 months to catch this easily to trade sell off and then run. Price action trading and money money will keep you trading. What is between your ears and both of your eyes will not deceive you, but too many indicators and voices will. Trade will INSIDERS (big money).
PLEASE you tube and/or read about Lock up on an . I never invest in initial public offerings of any related to stock have ZERO history, but after 5 plus months, you can figure out bias and when the Insiders are SELLING some of their original shares (99% of the time for profit), but also send PA downward related to having to much SUPPLY of stocks. This is time to buy for the regular, normal trader at home investing.
Great site for Lockup Expiration's is: MARKETBEAT