That's a pretty bold statement haha! He probably didn't provide any evidence or technicals either.

    He did provide info and

    Posted by rbreese on 5th of May 2025 at 06:05 pm

    He did provide info and is quite a market historian too. 

    on the # consecutive up

    Posted by matt on 5th of May 2025 at 06:41 pm

    on the # consecutive up days - always test that stuff yourself vs reading and taking what you see in an article. 

    I wrote a simple strategy to test # days up, now for exit condition could be anything, I simply used a close below the 5 MA for a mean reversion

    over 40 years - there's been 9 instances of 9 consec days up

    10 conec days there were 5 instances over 40 years

    11 consec days = 3

    12 and 13 and 14 = 1 instance - nothing more than 14 which was the max consec days  up

    LOL I don't understand any

    Posted by steveo on 6th of May 2025 at 10:47 am

    LOL I don't understand any of the columns except the first.

    the columns on the backtest

    Posted by matt on 6th of May 2025 at 10:54 am

    the columns on the backtest report pretty simple

    40 years back on S&P 500 cash

    - 9 consec days up - there's been 9 of them over 40 years, if you closed out short the next day you made money 1/2 the time
    - 10 consec days up - there's been 5 of them over 40 years
    - 11 consec days up - there's been 3 of them over 40 years
    - 12, 13, 14 consec days up there's been 1 of them, why one each? Because it's part of the same date range where this progression occurred, you had one instance where you once you had 12 days up it didn't stop at 12, but went to 13 and 14.  Nothing higher than 14 days of course

    the longest progression occurred in

    Posted by matt on 6th of May 2025 at 11:03 am

    the longest progression occurred in September 1995, previous to that was June 1987

    anyway enough for me discussing that, just posted for informational purposes

    I lied last one -

    Posted by matt on 6th of May 2025 at 11:10 am

    I lied last one - for fun I tested the Dow Jones back 100 years on the max days consec up

    For the Dow Jones, you had one instance of 15 days consec up - this occurred in Aug 1927

    for 9 consec days up there were 35 of them! So not as rare as you might think, avg one every 3 year's

    10 consec up days was 17

    11 was 8

    12 was 6

    13 was 3

    14 and 15 were 1  (occurred in Aug 1927)

    Matt   Thanks for clarifying  the

    Posted by rbreese on 6th of May 2025 at 06:52 am

    Matt   Thanks for clarifying  the longest times market rallied over the years. 

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