The MHP (Magic Hat Portfolio) on Stockopedia (http://www.stockopedia.com/fantasy-funds/magic-hat-463/) is an experiment by me to see if a human can improve on a mechanical Greeblatt Magic Formula screen. I am trying to weed out “mistakes” that I feel the screening commits: unseasoned companies, scams, foreign companies (particularly Chinese), fishy accounting, and statistical quirks. Apart from that, I am agnostic as to the sector the company operates in, although I will try to avoid heavy concentration in any one sector. I will mostly apply “Strategic Ignorance”, by which I mean that I wont try to be clever in my stockpicking. My picking will be mostly mechanical. A summary of most of my Magic Hat articles can be found on the web page http://www.markcarter.me.uk/money/greenblatt.htm This will allow you to see, at a glance, what shares have been bought and sold in the past, as well as what shares have been rejected from consideration and why.
SOM (Somero Enterprises) is due to exit the portfolio by rotation. It is up 65% since its introduction, which is nice to see. Since it has a Stockopedia StockRank in the 90’s and still passes the Magic Formula Screen, it stays in.
On a semi-related note, I shall be working on some tools to help with creation of Stockopedia portfolios. Stockopedia has some useful facilities for uploading and downloading your portfolio, and it seems like a good idea to use them. I was originally going to write it as some UNIXy shell scripts, but I think I will use python instead. That way, they will work on any platform.