Your model returns stocks you don't like

Here’s the article on this topic I posted to the blog site:

https://p123blog.com/2018/06/21/my-investment-model-recommends-that-what-the/

I use the defaults; next open, 0.25% slippage.

Marc, I am to lazy to replicate your nano / small cap screen of https://p123blog.com/2018/06/18/understanding...ng-potentially-good-ones/ (the one that works), could you provide a link to it? That would be great, thank you
Andreas

I would like to add more2 cents.
In order to be 100% mechanical, e.g. following your system 100%, something helped me.
Look at your portfolio as something that lives (a living entity that you create) and that is a casino that roles the dice
every day times the amount of stocks you have in that portfolio. on an individual
stock base I will be wrong all the time, even with the winners (because I did not buy at the low
and sell at the high). The same is a casino that you own, you will loose a lot of bets.
But that is not what counts, your overall performance counts.

What I do is also, I post all my stocks (100 because of the casino effect and the lower volatility I get) into tradestation and sort them by winners descending. Usually I got a lot of stocks posting >5 or >10 Percent. I love that, and the Loosers I have at that
day do not bother me anymore, because I know they are offset by the winners.

Good advice.
At the end of the day, it is all probabilities anyway.
Through proper modeling, we are just trying to increase our probability of success while knowing that sometimes it will go the other way.

Here’s the link to the screen.
https://www.portfolio123.com/app/screen/summary/210015?st=0&mt=1

The name of it is
VQS Micro-Nano Cap Stocks from p123spotlight.com

That is the essence of having a portfolio as opposed to a stock.

We all can recite the theory of diversification. But to make it real, one has to get comfortable with the mindset Andreas suggested.

Hi Marc,

There’s something off when I backtest a copy of ‘VQS Micro-Nano Cap Stocks from p123spotlight.com’.

A copy and sim shows an AR of 17.07%. But I noticed that under settings, ranking is enabled but unassigned. When I disable ranking, the AR drops to 7.88%.

Does this screen use a ranking system (under settings)?

Walter

Yes, you need to set ranking as the default P123 sentiment (basic: sentiment). That worked for me.

Rod

Thank you Marc!

Thanks Rod.

On another thread, David used Marc’s P123QVS ranker. That seems to provide identical results to the direct copy of the screen. I don’t know how or why the copy had the ranking system unassigned. I p123 bug, perhaps?

Walter

I have purely mechanical models and purely discretionary picks, and never mix the two.

Once I trust a model, I trust every stock pick from that model. It is always going to follow the rules and pick the type of stock you told it to.

As I recall, someone did a study that showed that newsletter subscribers under perform the newsletter, because they go in and accept/reject the picks on a discretionary basis, basically undoing the newsletter. I think Joel Greenblatt said something similar about his magic formula investing.