At this stage it is hard to say. All I know is that Fidelity Brokerage is very thoughtful about there customers. We will see some updates this year, I am sure.
A cursory look is that he's back-testing/forward-testing a strategy on leveraged ETFs and probably does not take borrow rebates or transactions costs into account.
I can not follow you here. I am not sure what borrow rebates have to do with it? Also I feel, depending on the position size the cost of trading can be neglected.
The ETF Pairs Arb system trades two symbols, and MAYBE places 1 trade every 30 days on average. Even if it does not consider commission the difference would be negligible.
Interesting. Not interesting enough to subscribe, but interesting enough to read a description when I get home.
I made a screenshot of the last three trades (not sure if you can open it): https://www.dropbox.com/s/n0qfc3ep8u7zopg/Screenshot 2019-03-08 15.22.27.png?dl=0 In case you can open it, here are the entry and exits of QID: https://www.dropbox.com/s/4bgxg5u42l0zj5o/Screenshot 2019-03-08 15.24.28.png?dl=0 Let me know if you the screenshots are displayed correctly.
I am a subscriber because I am impressed by the percent profits. 90+ percent last year looks good for me. If you are better feel free to share your success on WealthSignals?
WL 4 was a great platform. In used it some years ago with a program called APS that generated code for systems. I still use NT7 and successor of APS called DLPAL S. Both great programs and I have developed some excellent systems but I miss WL.