The Day Of Week effect, does it still work

Discussion in 'Strategy Building' started by Murray Ruggiero, Aug 21, 2007.

Do you believe in day of week bias in the S&P500 ?

  1. No it's a myth

    42 vote(s)
    61.8%
  2. Yes, but only Monday being a up day

    4 vote(s)
    5.9%
  3. Yes but only Monday and Friday are reliable

    10 vote(s)
    14.7%
  4. Totally, I use each days effects in all my S&P500 patterns

    12 vote(s)
    17.6%

  1. 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).
     
    #41     Aug 25, 2007
  2. Gyles

    Gyles

    Very informative thread.

    Just wondering whether it is possible to do "The Day of the Week"on the "Thirty Year Treasury"?

    Please do clarify.
     
    #42     Aug 26, 2007
  3. Another losing day for this "Day Of Week" strategy, that's 2 losing days out of 2 since this post was started. Maybe better luck this Friday and Monday.

    How about posting paper trades every Friday and Monday for 52 weeks then we can see how it works over a 1 year period?
     
    #43     Aug 27, 2007
  4. Hopefully, I'm not overloading on image size here, but it was about the best i could fit on one page.

    Here's one year's running view of data for S&P 500 to present, 2007-- the way I approach it. Have at it. Double check it.
    All refunds available on proof of error :)

    <img src="http://elitetrader.com/vb/attachment.php?s=&postid=1583307" border="0" alt=""><br /></font></p></font></p></font></p></font></p></font></p>
     
    #44     Aug 27, 2007
  5. Murray Ruggiero

    Murray Ruggiero Sponsor

    Thank's , it looks like you did a nice job.
     
    #45     Aug 27, 2007
  6. dtrader98 stats had already shown that Wednesday is the day to play. :cool:

    http://www.elitetrader.com/vb/showthread.php?s=&threadid=102124&perpage=5&pagenumber=6

    Also, we are talking about a tendency from Open to Close and such may not be practical as is.

    I myself look at like this...

    Instead of playing the the Open to Close, look for bullish signals anytime during the trading day along with being more weighted on the Long positions in comparison to the Short position.

    Simply, I tend to use the market seasonal patterns for position size managment along with holding the trades much longer in comparison to the opposite trades.

    Thus, on Wednesdays I would be larger on my Long positions in comparison to my Short positions.

    In addition, I would try to capture more profits on my Long positions in comparison to my Short positions along with having a tendency to add to profitable Long positions in comparison to not doing any adding to profitable Short positions.

    Therefore, whatever is your primary trade signal...

    Try to merge it with the market seasonal pattern.

    It's much easier to manage your trading in comparison to try to manage a tendency that may look good in the stats but not practical for real trading as is.

    See prior discussion of a trade management result of another discussed market seasonal pattern to better understand what I meant by merging a trade signal with the market seasonal pattern.

    http://www.elitetrader.com/vb/showthread.php?s=&postid=1564663#post1564663

    Thus, some market seasonal patterns are not meant (not practical for real trading conditions) to be traded as is while others are ok for such.

    I believe (won't know for sure until I complete my research) this tendency for Wednesday's to be an up day is one of those tendencies not to trade as is and requires merging with an actual bullish trade signal to know when to go Long.

    Mark
     
    #46     Aug 27, 2007
  7. From post #3:
    Lets not hop from day to day.
     
    #47     Aug 27, 2007
  8. I specifically said dtrader98 stats in reference to his Wednesday's numbers that's in contrast with what your quoting Murray. :cool:

    So far...Wednesday merits my research for trading purposes in comparison to what the stats show about the other trading days of the week.

    I also have a secondary interest in Tuesday's statistics but not for trading purposes.

    Other than that, I haven't seen any reasons to start my research with Monday's and Friday's.

    Mark

    Both charts below originally posted by dtrader98 in this thread.

    <img src="http://elitetrader.com/vb/attachment.php?s=&postid=1580669" border="0" alt=""><br /></font></p></font></p></font></p></font></p>

    <img src="http://elitetrader.com/vb/attachment.php?s=&postid=1583307" border="0" alt=""><br /></font></p></font></p></font></p></font></p></font></p>
     
    #48     Aug 27, 2007
  9. Why are you trading this? Things like this are rarely going to pour money into your coffers. And especially when in the midst of outsized volatility.

    You should only use this in concert with other methods. It is interesting, not a trading methodology
     
    #49     Aug 27, 2007
  10. I am not trading the "Day Of Week" strategy. I am 1 vote of 31 for No it's a myth.
     
    #50     Aug 28, 2007