Quote from MGJ:
Yes, 6/1/1982 is a Tuesday. It is also the next market day after Friday, 5/28/1982. That's what Joe wrote and that's what I tested. Joe entered at the open on Tuesday 6/1/1982 and exited at the close, and so did my spreadsheet. You can see this for yourself by looking at the other page within the Excel file (excerpted below).
"Since I used Excel's WEEKDAY function to identify Fridays, then selected the market-days-after-Friday to put in the worksheet named (drum roll.....) "The_Day_After_Friday", a missing Monday doesn't throw off the entire rest of the spreadsheet.
By the way, Murray was wrong when he said that "Monday is a holiday" is the only problem with Joe's algorithm. For ten points, name one other problem. For five thousand points, name two other problems.
Aaahh .. yes. I did misunderstand your original premise. For some reason, I was under the assumption that the thread was about trading on a specific "day of the week" (o-cl) only (from earlier posts), and whether monday would be the best compounded trading day of the week.
I should have read the details of your backtest on joe's strategy more carefully
Although, it does seem kind of odd that he would call it "buy monday" when it includes non-mondays. Would make more sense to call it, buy the next market day following friday IMO.The graph I posted shows the result of trading each specific day of the week, under the assumptions of slippage and spread gain you presented.
From my recollection of l. williams, I have seen him specifically address best trading days of the week and edge advantage. "Joe's" algorithm, as you presented it, slightly deviates from that premise, but nevertheless, some good points are raised about it from other posters. One thing I noticed off the bat about running the specific days of the week, is that Wednesday shows better long term compounded results, but the data is skewed by the advantage of many more trading Wednesdays in that time period, and thus Wednesday's results gain from the advantage of additional compounded days (although, one could argue it could have been adversely effected by a large cluster of negative days).
