Stock Picking…Art, or Science (Part III)?!

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art vs. science, asset allocation, correlation, debt, diversification, growth vs. value, home bias, illiquidity, stock picking, stock selection, stock valuation, volatility

Well, it’s not ideal publishing another post in this series two months+ after my last post…but I’m obviously no post a day pleaser. And life, Xmas, stocks & markets, and sneaking off to the movies, all tend to get in the way! 😉 A quick (re-)read of Parts I & II might be in order, if you’re so inclined? But to recap, very briefly: In Part I, I stressed stock picking is really two distinct & independent activities:

a) Stock Valuation, and

b) Stock Selection

And all too often, investors confuse & conflate the two…

But presuming your quantitative stock valuation process is nailed down, then stock selection is obviously a far more qualitative process…it’s certainly not about ranking & selecting stocks purely in terms of their upside potential. Fortunately, there’s plenty of stock selection filters you can employ – for example, to help protect against the risks posed by home bias, bottom-up stock picking, and/or a concentrated portfolio. Of course, the overall objective here is to:

i) Ensure stock selection is as much science, as it is art, and

ii) Always strive for greater diversification & superior risk/reward in your portfolio.

Here are some other filters you may find particularly useful. No doubt, as you read, they’ll strike you as perfectly obvious…the trouble is, applying them consistently is easily forgotten when you’re considering individual stock holdings & potential buys, let alone when you’re trying to manage the overall risk/reward of your entire portfolio:

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Stock Picking…Art, or Science (Part II)?!

Tags

art vs. science, asset allocation, bottom-up stock picking, concentration risk, diversification, growth vs. value, home bias, Margin of Safety, stock picking, stock selection, stock valuation

Continued from here.

OK, time for a more in-depth look at stock selection. [NB: We’re presuming you’re already comfortable with the rigour & consistency of your stock valuation process]. While I’m happy to acknowledge stock selection may (ultimately) be art, here I’m going to illustrate & argue why it should be mostly grounded in science. So yes, I’m sorry – I don’t have any magic tricks up my sleeve to avoid, for example, a situation we all abhor…you know the one I mean:

You dutifully winnow a list of stocks down to two finalists, do a fine job of valuing them side-by-side, and make your final/fateful selection…only to see one stock double in three months, while you ponder the 35% loss on the stock you actually bought!?

But this can & does happen to the best of us! Unfortunately, it comes with the territory… You have to remember buyer’s regret & remorse are really just symptoms of Fear & Greed. Which can be tackled in two ways:

– Ignore the Problem:  As tempting as self-flagellation is, why indulge in such a pointless exercise? Don’t forget, we’ve already assumed you’re doing a bang-up job with your stock valuation process – so you obviously shouldn’t be buying dud stocks, or forsaking a decent margin of safety! What you’re dealing with here is really just Lady Luck…and her rough edges tend to get smoothed out over time.

– Systemise Your Process:  Stock selection is an independent, but equally important, part of your investment process – and as I’ve argued before, formalising & systemising every single component of that process is the best way to subdue and kill your fear & greed. Like I said, stock selection is mostly a science..!

And as I wrote in my last post:

‘Stock valuation must be absolute, but stock selection is usually relative.’