The Bethe portfolio was moved from a Robo Advisor management firm over to Schwab in 2017. It is now managed using the Kipling spreadsheet. Search for Bethe and follow the monthly reviews.
Check on the more recent blog posts to see how the current Bethe is handled. If you are a Platinum member, look for the magnifier in the upper right-hand corner of the page and search for Bethe. This will bring up the most recent posts first.
If you want to read the posts historically, or from oldest to the most recent, then search for Bethe under Categories.