I've created several model stock portfolios using Finviz software. On January 10, 2021 I created one for Boeing and its main US competitors: GD, Northrop, Raytheon and Lockheed. Of those five, I also own RTX which is one reason I didn't add to my BA when it was beaten down.
Initially that "paper" group was worth $100,000k on January 10 and is now valued at ~$113k. Very nice.