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31 results found

  1. Eliminate Survivorship Bias at least for the S&P 500

    6 votes
    2 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner commented  · 

    I initially dismissed this because I thought the impact would be relatively minor for the research I was doing. For example, I was comparing different VectorVest stopping rules and I expected the impact to be similar across the different conditions (so I could ignore it). However, all of my backtests produced results that were strikingly better than I expected. I was a stock market genius! So I tried some simple backtests that I could check elsewhere and the results came out so much better from VectorVest's backtester than what I think were the actual real-market results that I have no idea whether the impact of its bugs (e.g. survivorship bias) interacts differently with some conditions (e.g. different stopping rules) than with others.

    As a result, I no longer use the backtester for anything. I can't figure out how to determine, in a compare-this-versus-that student whether the differences in results come from the differences between my test conditions or from a stronger effect of the bugs on some conditions than others. I can't find a way to trust the data enough for it to be useful.

    Cem Kaner supported this idea  · 

  2. BackTest Transaction Log Include Reason for Trade

    2 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  3. Replicate old system (VV US) whereby backtesting can be marched forward one day at a time.

    2 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  4. Dilido 1-Hour Delay from Markey Open for Back-testing

    2 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  5. Backtester - Market Timing / Direction

    2 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  6. Add a "tightening stops" function to the backtester.

    3 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  7. make it possible to back test using opening prices. VV updates at evening so I buy next morning.

    2 votes
    1 comment  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner commented  · 

    I've been walking through the actual purchases in my backtests. My search requires stocks with Rec = Buy, but I am buying stocks that were buy yesterday but have dropped in price and are now Rec = Hold. This should not be happening.

    Cem Kaner supported this idea  · 

  8. Bug with historical watchlists in back tester

    2 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  9. Have a stop criteria that lets me hold by number of days

    4 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  10. MTI in backtest

    3 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  11. Enhance the Trailing Stop Capabilities in the Backtester

    3 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  12. Backtesting periodic portfolio rebalance or refresh

    3 votes
    0 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  13. Show correct True Stop

    4 votes
    0 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  14. Tracking Options Gain/Loss in Portfolios

    5 votes
    0 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  15. For trailing stops set in portfolio it should be possible to graph the value from the date set. On any given day the value should be shown.

    6 votes
    0 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  16. Provide User Stop column in Portfolio Layout

    7 votes
    0 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  17. Display Stop Values for Stocks in Portfolio

    17 votes
    2 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  18. Allow the creation of custom stop criteria

    42 votes
    5 comments  ·  VectorVest 7 » BackTests  ·  Admin →
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    Cem Kaner supported this idea  · 

  19. Import Personal Portfolio Data

    55 votes
    9 comments  ·  VectorVest 7 » Portfolios  ·  Admin →
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    Cem Kaner supported this idea  · 

  20. Covered Call Portfolio

    50 votes
    1 comment  ·  VectorVest 7 » Options  ·  Admin →
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    Cem Kaner supported this idea  · 
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