moorfield wrote:Gengulphus wrote:If you can see any relevance of that lesson to Greene King, I would of course be interested to know what it is...
With that post Gengulphus, no, but the clue is in the title of the thread - Short Selling. Adopting this as an additional check for buying or holding HYP shares was widely discussed here in the fall out of the Carillion implosion, hence the comparison with the Greene King piece. Now I'm curious to know if people are putting it into practice, quantifying it, and acting upon it (as some do with, eg. dividend cover), and at what level. 5% shares short, 7.5%, 10% .... etc. ?
And another clue is in the fact that I said "that lesson", referring specifically to the lesson in my link (
viewtopic.php?f=15&t=9902&p=115812#p115812). My point is that your post contained an unstated assumption, namely that what you described as "any lessons learnt from Carillion" necessarily included lessons about short selling. That basically makes it a question of the classic "Have you stopped beating your wife?" variety - basically an unfair question to ask anyone for whom the unstated assumption is not true.
And it isn't true in my case: the lesson described in the link is the only lesson I've drawn from Carillion, so far at least - and even it is a rather tentative lesson. I know that people have extensively discussed short selling as a danger signal in the case of Carillion, and indeed about quite a few other shares - but I
haven't been convinced by those discussions.
Why not? Basically because I want at least one of two things before I accept a suggested danger sign as real. The better (but much more difficult) one is a proper study (*) of a decent-sized, unbiased sample of cases where the danger sign existed, and another of a similar sample of cases where it didn't exist, looking at all the outcomes (meaning reasonably long-term outcomes in this case, since it's in a HYP context) to see whether the cases where it did exist have a poorer average outcome than those where it didn't
or they had a sufficiently high chance of seriously bad outcomes to put my HYP as a whole in excessive danger from happening by chance to get more of them than statistically expected. The other and easier one is to produce a reasonably convincing connection between the suggested danger sign and the company being in trouble. In the case of shorting levels, they're obviously driven by the short-selling and short-covering decisions of those market participants who are willing and able to short HYP shares, which in turn are driven by their trading opinions about the merits of such trades.
So if I were to guess that the question you
meant to ask (as opposed to the one you
did ask) is along the lines of "
What are you looking for from here that will persuade you that there is a lesson to be learnt from Carillion about shorting levels that also applies to Greene King, and sell?", the answer is basically "convincing evidence that the trading opinions of market participants who are able and willing to short shares about the merits of short-selling and short-covering trades are worth paying attention to", either in general or under specific conditions that apply to both Carillion and Greene King (and with a caveat that such conditions aren't 'contrived').
As I hold the general opinion that the trading opinions of market participants aren't worth paying attention to and have seen a good deal of evidence to suggest (though by no means prove) that that's the case, anyone wanting to supply me with such evidence is definitely facing an uphill task!
And to answer the obvious question "
What's special about your own trading opinions that makes them worth paying attention to?" before anyone else asks it, I'm by no means convinced that there is anything special about them that makes them worth paying attention to - at least as they relate directly to specific shares. MY HYP trading decisions are generally driven by:
* A general investment principle that it is better to be invested in shares than to remain in cash, beyond enough cash to deal with plausibly-foreseeable short-to-medium-term cash needs.
* A general investment principle that because of trading costs, it is better not to trade, unless one has a reasonably-significant reason to trade.
* My own psychological comfort, which is 'special' because it's highly specific to me and basically known to me, not to anyone else. E.g. I can
know whether I find getting 10% of my income from a single shareholding uncomfortable (I do) or whether I find holding a widely-shorted share uncomfortable (I don't). The most anyone else can do about those questions is hold an opinion on whether I
ought to find them uncomfortable.
* My tax planning (especially CGT), which again is 'special' because it's highly specific to me and basically known to me, not to anyone else.
* Maybe other reasons that are similarly 'special' - I cannot think of any offhand, but that isn't a guarantee that they don't exist!
* And of course various combinations of those factors - in particular, it's quite common for a sale I'm considering to have both 'psychological comfort' and CGT effects.
Having said that, those factors aren't very helpful about buying decisions. The first of them says that when I've got spare cash to invest, I should buy, and the 'psychological comfort' factor says I shouldn't buy shares in companies to which I have ethical objections or top up holdings that are already verging on being too big for comfort. But that's it: deciding between the many possible purchases after that has to depend on
somebody's trading opinions about their share-specific merits. And making it my trading opinions rather than anyone else's has some 'psychological comfort' advantages as far as I am concerned - in particular, it means that I know the person whose trading opinions I am paying attention to has my interests at heart, and it makes the "who is to blame?" question when things go wrong very easy to answer!
(*) Such a study would be possible in principle: start collecting shorting and performance data on e.g. all FTSE350 shares that meet some basic conditions for being HYP shares - a high yield and maybe some simple, widely-accepted dividend safety criteria (if there are any that are widely-accepted!). Also decide on what shorting level(s) you want to test for being dangerous. Continue collecting the data until you've got enough to have a decent sample both of cases where the shorting level is above the 'dangerous' shorting level and of those where it is below, for each 'dangerous' shorting level you want to test, and over a decent variety of market conditions - I reckon at least 5 years' worth and very possibly quite a lot more if market conditions happen not to change much. Then continue collecting at least the performance data for long enough to have a decent view of the long-term outcome for all of those cases - I reckon at least another 5 years' worth. After that, you have the raw data whose statistics you want to study...
But it's also clear from that description that such a study would involve a massive investment of both time and effort! The time requirement could possibly be reduced by using historical data, provided you can get historical data that is unaffected by survivorship bias and other forms of hindsight bias and the criteria you use to decide whether a share is a HYP share are strictly objective ones, also not affected by those forms of bias. That isn't easy, and would increase the effort requirement... All in all, I think it would be prohibitively difficult for the vast majority of HYPers, including me.
Gengulphus