|
|
| (37 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
| {{a|devil| | | {{essay|isda|When variation margin attacks|{{image|Archegos Positions|png|When [[variation margin]] attacks: ViacomCBS, Tencent, Baidu and Vipshop against the Dow (black)}}}} |
| [[File:Blackadder.png|450px|frameless|center]]
| |
| }}{{quote|
| |
| BLACKADDER: Look, there’s no need to panic. Someone in the crew will know how to steer this thing. <br>
| |
| CAPTAIN RUM: The crew, milord? What crew?<br>
| |
| BLACKADDER: I was under the impression that it was common maritime practice for a ship to have a crew. <br>
| |
| CAPTAIN RUM: Opinion is divided on the subject. <br>
| |
| BLACKADDER: Oh, really? <br>
| |
| RUM: Yes. All the other captains say it is; I say it isn’t. <br>
| |
| BLACKADDER: Oh, God; Mad as a brush.
| |
| :—Blackadder, Series 2: ''Potato''}}
| |
| | |
| Any of the standard reference works<ref>Goldsmith, Armitage & Berlin, ''Teach Yourself Law'', Book IV; The Open University Criminology Course; The ''Perry Mason Book For Boys'', 1962, [[Aleebee|needless to say]].</ref> will tell you that [[variation margin]] is a good thing, apt for ridding the world of the kinds of systemic risk that have the habit of building up in the financial system.
| |
| | |
| Since, like Captain Redbeard Rum, your loyal contrarian is going to run against what all the other captains will tell, you, let me set the scene with a story.
| |
| | |
| ==Once upon a time in America==
| |
| {{quote|''Shares of ViacomCBS closed down 9% Tuesday, a day after the company said it would raise $3 billion from stock offerings. The stock offerings come just a few weeks after the company launched its Paramount+ streaming service, and the offerings will help the company bulk up its content. ViacomCBS said it would use the funds to power “investments in streaming,” among other general corporate purposes.''
| |
| :—CNBC, March 23, 2021}}
| |
| {{archegos capsule}} | |
| | |
| Now here is an interesting thing. Because [[Archegos]] gained their market exposure using [[Equity derivatives|swaps]], ''by regulation'', their brokers were ''obliged'' to pay the value of their net equity to them, every day, in the form of [[variation margin]]. To be sure, the broker usually pays [[VM]] into an account it runs for its client. There are withdrawal thresholds that apply to that account that takes into account required [[initial margin]] — oh, that’s another story altogether — but over those thresholds all the variation margin is the client’s money, available to be withdrawn on request.
| |
| | |
| This is completely normal in the world of latter-day derivatives: mandatory two-way exchange of [[variation margin]] was implemented by regulation in pretty much every major market ''in the name of reducing systemic risk'' — but all the same, it is utterly weird. It is like ''forced'' lending against asset appreciation. Imagine if your bank, by law, had to pay you the cash value of any increase in your home’s value over the life of your mortgage.
| |
| | |
| ''This is very different from cash margin lending''. Had Archegos put the equivalent ''physical'' positions on, using [[margin loan]]s, its brokers would ''not'' have ''had'' to advance it the cash value of its [[net equity]]. They may well have ''willingly'' done so, of course – that is how [[prime broker]]s make their money after all, but being ''able'' to lend money, and being ''obliged'' to lend money are quite different propositions on that special day when it seems the world is going to hell.<ref>It is fair to note that — with the possible exception of the vampire squid — [[Archegos]]’s brokers did ''not'' believe the world was going to hell, at least not until it was far too late. But the principle remains.</ref>
| |
| | |
| === A dissonance ===
| |
| So there is this [[dissonance]], between [[Cash prime brokerage|''physical'' prime brokerage]], where advancing cash against net equity is at the broker’s discretion — oh, sure, you have withdraw your equity at any time, but you have to take it [[Payment in kind|in kind]]<ref>Withdrawing [[net equity]] in the form of the [[shares]] themselves, rather than their [[cash]] value, has a very different effect on the [[prime broker]]’s risk profile. It makes the client’s portfolio ''less'' volatile; withdrawing [[cash]] makes it ''more'' volatile.</ref> — and [[Synthetic prime brokerage|''synthetic'' prime brokerage]], where cash payment is required by regulation. It is inevitable for clients and their [[Buy-side legal eagle|advisors]] to ask, “well, if I can withdraw my equity value in cash under a swap, why can’t I have it in cash for my physical portfolio under a margin loan?”
| |
| | |
| On its face, this is a fair question, to which the answer is either: “Huh. I hadn’t thought of that. Yes, I suppose you are right” — call this the all other captains argument; or: “Well that just goes to show what a misconceived idea compulsory two-way variation margin is” — call this the Captain Redbeard Rum argument.
| |
| | |
| “Come on, JC: I know you are a cranky old bugger. But do you really mean to say you are going to swim against the tide of all that consensus?”
| |
| | |
| WHY NOT, my friends, WHY NOT?
| |
| | |
| Now, if someone would kindly hold my beer:
| |
| ==Banking, in the good old days==
| |
| ===Remember when trusted intermediaries were a thing?===
| |
| *Banks are these trusted intermediaries that make finance available to people who need it to run their businesses.
| |
| *Capital and regulation targeted prudent management of a bank’s balance sheet
| |
| *Client contracts were one-way affair: since banks were lending customers money, there were no material covenants going the other way. Businesses might provide collateral for their lending, in the form of plant and inventory, but did not collateralise in cash so much, seeing as that would be largely to defeat the purpose of borrowing in the first place.
| |
| *On the other side of the banks balance sheet were deposits. Again, no suggestion that the bank offered security for these: it compensates for the enhanced credit exposure over the risk-free rate with a spread over the base rate.
| |
| *Customers who considered them to be over-exposed to as single bank (in the shape of large deposits) simply diversified (or invested in non-cash assets).
| |
| *Note the role of banks here is not to take a proprietary position in the businesses to which they lent, or the investments which those businesses made, but to manage their credit exposure on their assets, ensure their deposits funded the business, and to make sure the margin between deposits and loans was enough to remain solvent.
| |
| ===Interbank relationships===
| |
| There is, and always has been, a healthy interbank relationship, providing liquidity, custody, making markets, foreign exchange, hedging and providing each other short term funding to help manage their daily operations. These interbank relationships tend to be wide and many-faceted and the terms documenting them tended to be short, to non-existent, and bilateral.
| |
| ===The overall vibe===
| |
| The overall vibes were of prudence: clients would produce non-cash surety, but banks would lend based on the overall understanding of a customer’s position, lending would be broadly proportionate.
| |
| | |
| I want to set up an idea of a financial services industry with two types of participant: ''intermediaries'' and ''end users''.
| |
| | |
| ==== Intermediaries ====
| |
| There are various types of intermediary in the market: those that are part of the market infrastructure, like [[Exchange|stock exchange]]<nowiki/>s, [[clearing system]]<nowiki/>s, securities depositories and so on; then those agents who earn only a commission from their involvement, and take no principal risk<ref>I include here “[[quasi-agent]]” roles that are conducted on a [[riskless principal]], but (absent insolvency) are economically neutral: thse participants are remunerated by [[commission]] or fixed [[mark-up]] and do not have “[[Skin in the Game: Hidden Asymmetries in Daily Life - Book Review|skin in the game]]”.</ref> at all: [[Cash brokerage|cash broker]]<nowiki/>s, [[Investment manager|investment managers]], [[Clearing broker|clearer]]<nowiki/>s, [[Market-maker|market-makers]] and [[Intermediate broker|intermediate brokers]] and then there are those but the thing they have in common is this: their financial interest is ancillary to the performance of the instruments in which they are dealing.
| |
| ==Enter the swaps==
| |
| The [[swap history|history of swaps]] is interesting and fairly well-documented. It all started in earnest with a bright idea [[Salomon Brothers]] had to match up IBM, who needed U.S. dollars but had a load of Swiss francs and Deutschmarks, with the World Bank, which had all the dollars anyone could need but needed to meet obligations in CHF and DEM which it wasn’t able to borrow. The two institutions “swapped” their debts, exchanging dollars for the European currencies and paying coupons on them, with an agreement to return the the same values of the respective currencies at maturity.
| |
| *Unlike usual banking activity this didn’t involve a bank lending to a customer. Both parties were lending to the other — hence not just parties, but “counterparties”. Day one, as long as you could really treat the opposing loans as [[Set off|setting off]], ''neither'' party was really lending to the other. Law students will know this notion of enforceable set-off is a tricky one, especially if you are trading across international markets, where insolvency regimes are capricious, and might struggle to understand it, in a way they tended not to struggle with ordinary secured lending. Hence the great, tedious topic of [[netting]], which isn’t wildly germane to this essay except to point out that credit mitigation for derivatives works in a very different way to loans: it works by set-off, not security, and it can swing around, depending on the market value of the underlying obligations.
| |
| *This is the other thing. Even if, at inception, it was a fair trade: I lend you Swissies and you lend me an equivalent amount of dollars at today’s exchange rate, should that exchange rate move — is inevitably it will — the respective values of the currencies to be returned at maturity (and the coupons due in the mean time) mean that the contract can quickly resemble indebtedness. Say CHF and USD were at parity when we struck our $10m swap. If CHF drops to 50% of the value of USD, then the counterparty paying dollars effectively owes $5m to the one paying CHF. If, tomorrow, CHF rallies 100% and USD drops 50%, tomorrow the indebtedness will be the other way around. Both therefore had significant contingent credit risk to the during the life of the transaction.
| |
| Roll forward twenty years and derivative trading had become a twenty billion dollar industry.
| |
| | |
| {{Sa}}
| |
| | |
| * [[Variation margin]]
| |
| | |
| *[[Archegos]]
| |
| *[[Swap history]]
| |
| {{ref}}
| |