Obligatory Bitcoin post
No, I'm no longer useless.
You'd be forgiven for wondering I turned into given my loss of weblog posts inside the previous couple of months, but I was busy; first promoting "Smart Portfolios" (thanks to all who have sold it), then on the conference circuit (here, right here and here), after which greater these days I've been getting ready the course material for this.
So this is a post about Bitcoin. I have dissed BTCbefore [and the price has gone from $500 then to ~$13K now FWIW], but in recent weeks there have been many people asking me about it. It seems you aren't allowed to exist nowadays without having an opinion on all things blockchain.
Actually my opinion on Bitcoin and (what I believe are called) 'alt-coins' is the same as my opinion on many things: a deep scepticism blended with almost total agnosticism. Fact is I don't see why I need to have an opinion on this stuff. I have plenty of places to put my investment capital, thank you very much.
Still 2017 has undoubtedly been the year of the Bitcoin - or perhaps more accurately the last five weeks have been the five weeks of the Bitcoin: people weren't really that interested until the price started going exponential:
Price (bitcoin.Com)
Search hobby (Google tendencies)
So it seems suitable to shut 2017 with this post (and the launch of two BTC futures on grown up exchanges inside the last few week is likewise proper new-information). If not anything else I might not need to constantly waste time in replying to the hordes of human beings constantly asking me what I consider it.
A caveat: I'm scripting this as an economist / investor / trader; I'm not a technical professional on the technology side of these things. Grab some pinches of salt - you're going to want them.
A observe: The huge majority of this put up will follow similarly manner to every other *Coin. I will interchangeably use the terms bitCoin, BitCoin, bitcoin and BTC.
What is BitCoin for?
Is BitCoin:
- A means of payment (like US dollars)?
- A store of value (like US dollars and Gold)?
- An investment (i.e. a store of value that is hopefully going to go up in price and/or return a stream of payments, like shares in eBay)?
The purpose why I ask that is due to the fact the folks that love Bitcoin started out off pronouncing it become going to be a fantastic means of price, a whole lot less expensive and better than boring antique present fee structures (they usually use the likes of Western Union as an pricey straw-man for comparison, but global bills at the moment are a whole lot less expensive and home bills are quite damn reasonably-priced as nicely).
Now it's late 2017 and it's clear that BTC is currently unsuitable as a means of payment for most transactions:
- It's very expensive (currently north of $50 per transaction)
- The mining process is extremely energy inefficient (each transaction consumes 250kWh; my family of five people and a cat uses about 25kWh a day. If I was to make one bitcoin purchase every 10 days then I'd double our carbon footprint)
- Despite mega hype, hardly anywhere accepts Bitcoins in exchange for real stuff (some that did have stopped)
- The confirmation process is very slow and the time is very volatile (see picture - this is an average: apparently some confirmations take days)
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| Source: blockchain.Data |
It turns out that BitCoin is also currently unsuitable as a store of value:
- The price is extremely volatile. It makes the German mark of the Weimar Republic look like the Swiss franc. Although unlike the inter-war mark it goes up in value as well as down.
- Bitcoins are easilylost orstolen. This is also a problem with cash (though you'd struggle to lose £74 million in fifties), but not so much with 'legacy' electronic payments.
- It turns out to be quite difficult to turn Bitcoins back into real money (see here for just one example) unless you use some foxy derivatives which involves a very high effective transaction fee.
(I'm aware that a few people suppose a number of those problems are soluble. I'll come back to that within the 'destiny of crypto currencies' later)
So all the BTC cheerleaders have now pivoted to saying that BTC is an investment. The logic runs something like this: when all 21 million coins have been mined if the entire world starts using Bitcoin for just 10% of it's transactions then it would need to replace 10% of around $37 trillion in narrow money. $3.7 trillion / 21 million = $176,190 per Bitcoin.
There is an inconsistency here - BTC will most effective make feel as an investment now if it makes sense within the future as either a method of fee or as a shop of cost. This is due to the fact not like funding in say shares or bonds it doesn't produce a stream of income or coupons that can be valued. This makes it a piece greater like Gold, which humans like as a store of value, and if the brown stuff hits the fan it is able to also be used as a medium of change. If we debunk the usage of BTC as a method of fee or keep of fee, then the funding case is also debunked.
The truth is that the vast majority of people who have bought BTC in the last few months have done so because they think it will go up in price, which will happen because some more people who haven't bought it yet would like to buy some. They care not why it has gone up, as long as it will continue to do so. Some of the more sophisticated people will have come up with all sorts of justifications as to why they've bought it, but in their hearts they know the dark truth.
People have likened the BTC mania to both the overdue ninety's tech boom and the tulip mania in Holland during the seventeenth century. Arguably it's worse than each of those. Some of the firms in the late ninety's tech growth did have possible corporations and ended up being well worth some thing. If you purchase a tulip, at the least you've got a pleasing tulip to examine. If you purchase a BitCoin you have actually not anything of any intrinsic or aesthetic fee.
However the significant hobby being proven by human beings with does make it experience very much like the tech boom, which I recall nicely (I'm now not quite vintage sufficient to recall Tulip mania).
What is the future of Bitcoin?
The first thing we need to do is ask how probably it is that the problems mentioned above will be soluble whenever quickly. This is the most speculative part of the submit, because (a) we're searching into the destiny - which is hard and (b) it is resting on the shaky technical understanding I have approximately blockchain era. I endorse you study this in case you need to listen from a person who is aware of what they're speaking about.
Slow: We just need more miners on the case. Of course bandwidth will then become an issue, especially if miners tend to become concentrated in a small number of places with cheap electricity.
Expensive: Those additional miners will need to be rewarded with (higher) transaction fees. This will only get worse when BTC has the maximum number of coins since miners won't be rewarded any more by creating new blockchains. Those altcoins with pre-mined technology already face this problem. Transactions will also continue to get more expensive as the blockchain grows in length.
Huge power use: Which will only get worse with more miners and a longer block chain. Apparently if you read the bitcoin forums (a) we're going to get really fast computers - quantum computing will allow Moores law to continue, and (b) practically free renewable energy. Even if this is the case I still think it's madness to spend an increasing proportion of our energy budget on book keeping when it can be done much more efficiently by centralised payment systems.
These three factors neatly tie collectively, and there are of direction various technical proposals to address this. But as a long way as this dumb economist can inform they all involve fundamental modifications inside the manner that the blockchain works and / or result in different issues. The blockchain is a essentially non scalable element: it has to get bigger over the years, and the more it is used the quicker it's going to grow.
Theft and loss: Essentially you can either:
- opt for a low chance of loss (a third party looks after your coin)
- and risk theft (by the third party)
- or a relatively low chance of theft (you own the physical BTC on a USB or something)
- and risk loss (of the physical object or the password)
Volatility: There is a chicken and egg problem here. The reason for the volatility is that the market cap of coins is relatively low compared to the volume of money moving in and out of them. If the BTC becomes a standard for global payments; and then the market cap of BTC grows sufficiently large, and the volume of money is made up of small transactions rather than large investments, then yes it is plausible that the volatility will dampen down.
Nowhere to spend them: Again chicken and egg. If BitCoin becomes a large enough factor in the world of global payments, then retailers will start accepting them.
Its no marvel that I'm fairly pessimistic approximately the future of Bitcoin as a real alternative to say US dollars as a medium of alternate or Gold as a shop of price.
Of route there is a limited call for for BitCoin and different crypto currencies, made of human beings within the following categories:
- People buying stuff they shouldn't buy (eg drugs)
- People who want to hide money from the tax authorities or their spouses
- People who want to convert dirty money into clean money
But there are also present ways of doing all of these things:
- Most people buy drugs with cash (so I'm told).
- There are plenty of places to hide your money offshore, and most of them have great weather if you want to visit it.
- Money laundering is perhaps the best use of BTC (BTC is great for money laundering. You can put $20 million into your bank account from a crypto exchange and if the authorities want to know where it came from you can tell them you sold two pizzas in exchange for 10,000 BTC in 2010 and they have no way to disprove that).
I would argue that there is essentially an unlimited supply of new currencies (this is different from coin in a given currency), and but quite a limited demand from people who need to use anonymous electronic money. Sure BitCoin has first mover advantage and monopoly power, blah blah blah. But if BitCoin got too expensive then it would sense for the limited pool of people who really need to transact via blockchain to use another cheaper currency, which could be created by someone forking an existing github project which takes about 5 minutes. After all Ethereum is roughly a third the size of BitCoin, despite only being around for 2.5 years compared to nearly 9 years for BTC.
Finally I ought to point out that the outcomes of BitCoin operating are surely, clearly, awful. It might suggest that governments would lose the ability to tax transactions, and all nations might turn out to be as anarcho-techno states with a ridiculously choppy distribution of wealth. So I'm in reality hoping this precise experiment would not exercise session.
Should you invest in crypto currencies
I am very skeptical (in case you hadn't realised). But the more thrilling a part of this submit now begins, wherein I'm going to ignore everything I've just written and anticipate that there is indeed a legitimate funding case for BitCoin, and notice where that takes us.
What form of investment is BitCoin?
Bitcoin as an funding has the subsequent traits:
- It has limited and unstable liquidity
- It has high bid-ask spreads
- It has high transaction costs (unless you trade the futures)
- The market is fragmented across multiple exchanges
- There are operational and technical difficulties involved with trading it (unless you trade the futures)
- There is counter party risk as you're usually facing an unregulated exchange (unless you trade the futures)
- It is based on a made up number
- It has no asthetic or intrinsic value and does not produce a stream of payments
None of this means you should not invest in Bitcoin. Nearly all of these things additionally follow to residential housing, and this is nevertheless a legitimate funding. Eurodollar futures are primarily based on a number of that we realize now, as a substitute famously, has been frequently made up.
But it does suggest that if you're making an investment in BitCoin you ought to both (a) have a much higher anticipated return to compensate (b) maintain a miles small allocation in the asset than you'll normally or (c) both.
Should BitCoin have a higher anticipated go back? Indeed have to we assume BitCoin to head up in cost at all? Luckily we can be agnostic in this subject (considering arguing about the long term destiny of BitCoin is some thing I'm neither all that inquisitive about or qualified to do).
After all I invest in Gold but not because I personally think it will go up in value. The same goes for tail protect hedge funds. That's because these products bring diversification and provide insurance. It doesn't seem unreasonable to put BitCoin in the same bucket, albeit with the qualifications that Gold (at least when held via an ETF or a future) doesn't suffer from any of the problems I've listed above (Gold does have some industrial uses and enough people seem to like Gold jewellery that it has aesthetic value).
Indeed if we deal with BitCoin as an asset with negative correlation to everything else then even a slightly terrible predicted return wouldn't trouble me.
How a great deal must I invest in BitCoin?
Putting aside all my biases this is an opportunity to demonstrate how the top down framework in my book"Smart Portfolios" can be adapted to literally any old crap. Yes, even BitCoin.
The first factor you need to do is decide what your allocation can be to "Genuine Alternatives" (that's my call to distinguish them from now not honestly 'opportunity' belongings that are very just like equities or bonds - like the majority of hedge fund strategies).
This in turn is subdivided into the "coverage" and "standalone" buckets; the latter being the uncommon property that both provide diversification blessings and additionally yield a advantageous return. "Insurance" is the bucket that Gold and Bitcoin sit down in, along with certain sorts of hedge budget and safe haven currencies. Like I said above we don't expect them to offer a wonderful return, similar to I do not anticipate to make cash off buying residence coverage ultimately.
In my e book I advocate putting between zero% and 25% of your property into true options, and roughly 1/2 of that zero-25% into insurance like belongings together with Gold, with the other 1/2 into standalone alternatives.
Let's first deal with US Investors, when you consider that I realize from my site traffic file that they make up a majority of readers. My advocated allocation from "Smart Portfolios" for a small US investor is as follows:
- 50% in standalone alternatives of which:
- 25% in managed futures eg WDTI
- 25% in global macro eg MCRO
- 50% in insurance-like of which
- 25% in safe haven currencies eg FXF
- 25% in Gold eg IUA
If we shoehorn BTC into that we get:
- 50% in standalone alternatives of which:
- 25% in managed futures eg WDTI
- 25% in global macro eg MCRO
- 50% in insurance-like of which
- 16.667% in safe haven currencies eg FXF
- 16.667% in Gold eg IUA
- 16.667% in Bitcoin
Sadly for lots retail traders within the UK the selection of alternative ETFs is a long way extra constrained. From Smart Portfolios :
- 100% in insurance-like of which:
- 50% in Long volatility eg SPVG
- 50% in precious metals
Again if we upload BTC:
- 100% in insurance-like of which:
- 33.3% in Long volatility eg SPVG
- 33.3% in precious metals
- 33.3% in Bitcoin
Maximum BTC allocation then is among kind of 4.2 and eight.Three%.
However this is a risk weighting. The actual cash weighting is inverse volatility weighted, and so depends on what the risk of the rest of your portfolio would be.
The volatility of BTC is set 100% a 12 months; suggesting that even for a person with a distinctly aggressive risk goal of around 16% a 12 months (the highest I propose for motives defined in the e book) they have to best be putting a most of 0.Sixty five% (US) to one.3% (UK) of your portfolio in crypto.
To reiterate: even with the most aggressive risk target, and the highest recommended allocation to alternative assets, you should be looking to put no more than 1.3% of your portfolio into Crypto.
Notice that I have assumed that BTC will now not yield an above common go back, however on the other hand I've additionally omitted all the problems I outlined above (beneath "investment traits" above). The latter argues for a miles lower weight (and for me personally that weight is zero). The former argues for a better weight, but it's worth bearing in mind that it's very difficult to expect the destiny returns of any asset; and this is doubly actual for something like BTC.
How should I invest in BitCoin?
Many of the operational problems with BitCoin relate to owning bodily coin. Right now the best alternative is to own the futures; BitCoin ETFs are not but available (though perhaps soon can be, but after they come to be to be had may be primarily based at the futures).
The futures are very illiquid, although admittedly they have best just been released. They are coins settled which is right (for my part I want to be as a ways as feasible away from 'bodily' BTC) and bad (the agreement rate is open to manipulation and the charge should without problems deviate from what the cash and deliver arbitrage have to produce: however then it is simply comparing one imaginary variety with any other, so fill your boots). They aren't that applicable to traders who are not cushty with derivatives.
I would not in my opinion buy spot BTC - it is simply too flaky. However in case you observe my recommendation and handiest put ~1.5% of your portfolio into them I assume that limits your likely danger (if you'd put 1% of your wealth in BTC a yr ago you'll be up 10% of your wealth now, which for most portfolios could be a completely on hand bite of cash).
I mighttrade the BTC futures - see below. But I wouldn't bother investing, even via the future.
Do I actually have sufficient money to put money into BitCoin?
If you have study "Smart Portfolios" then you will know that a key trouble I carry up is whether you have got enough money to be varied.
For instance in case you trade BTC futures then you will want to very own as a minimum one entire coin, because thats what the CBOE destiny is primarily based on (the CBOT is 5 coins). If you have got $13K in BTC (the use of the current price), and that is 1.3% of your portfolio, then your portfolio ought to be one million dollars.
If you are courageous sufficient to change BTC spot then you could in theory purchase much less than one coin. But at a $50 transaction price it might not be financial to alternate small quantities of BTC. Using desk 40 in my e-book it turns out that the minimum monetary investment in spot BTC is presently $15,000; i.E. Just above one coin at current fees.
I recognise there are some dollar millionaires studying this blog, however in case you are not in that category (yet) you have to handiest spend money on BTC if you could find the money for to buy one coin (directly or thru futures); at the least till the transaction charge comes down sharply.
Should you exchange crypto currencies?
Does it make feel to change crypto directionally?
Clearly investing in Bitcoin is a protracted best bet. But given how unstable the foreign money is, surely it makes experience to exchange it? Should I for instance bear in mind including BTC futures to the 35 odd futures I exchange systematically, particularly using trend following? Surely crypto currencies have a propensity to expose strong traits?
Let me say:
- Volatility doesn't make something more or less attractive to trade.
- There is rarely statistically significant evidence that instrument X trends better than instrument Y; and the relatively short data history for BTC means that evidence certainly won't exist
This approach that if there is a compelling motive to feature BTC futures it's similar to for the funding case; they offer diversification. But there are some of problems with trading BTC futures:
- Even at the CBOE the $ volatility per contract is relatively high (currently around $13K per year compared to about half that for the emini S&P 500) making them unsuitable except for large portfolios
- The $ margin per contract is relatively high (even once you've accounted for the volatility - this is also a problem with the VIX/V2X futures because of their skew properties)
- The volume is currently too low and falls below the minimum threshold that I use before even considering adding a contract (although it shows signs of picking up and to be fair these are very new contracts)
- The bid-ask spread makes them a relatively expensive contract - this isn't a dealbreaker but means I'd need to trade them more slowly (see chapter 12 of "Systematic Trading")
- My broker doesn't let me short the futures: this is probably the most serious issue
Would I change my mind in the future? I might, if enough of these points become less problematic. But not right now.
Can you do <x> arbitrage with crypto currency?
On the face of it BitCoin is a arbitrageurs dream. The futures price isn't in line with the spot (although the gap has closed, and there should always be a slight difference reflecting the cost of funding the cash and carry trade; though there isn't really anything like a BitCoin repo market). The futures curve is the wrong shape for similar reasons (currently the CBOE strip looks like this:
Jan 18 13,530
Feb 18 13,760
Mar 18 13,520
... which makes no sense). The cash price varies wildly across exchanges (so what is "spot" anyway?)
However I'd really be nervous about trying to exploit any of this 'free money'. Because the futures are cash settled the opportunities to take a free money spot / futures bet or curve bet aren't really there (plus the Feb, March prices are probably stale given the lack of liquidity so the curve trade may not really exist). Across exchanges its even more difficult due to all the operational problems we've already discussed (verification delays, high transaction costs, the risk of theft or trades just being cancelled on an unregulated exchange).
Conclusion
No, I'm not going to buy any BTC. If after reading this you still insist on doing so please only put a fraction of your wealth into it - and make sure you're already a dollar millionaire. And please don't ask me to discuss this subject ever again (this is doubly the case if BTC goes to $1 million - I really won't want to talk about it then).
