Initial, Variation and Clearing Margin: Who Posts What

Initial margin names what a position holder puts up in advance. Variation margin names what moves once the price has moved. Clearing margin answers neither of those questions: it is the collateral a clearing member puts up to the clearing corporation for the positions it carries. Two of the three describe what is posted, and the third describes which link of the chain it has reached.

Three names arrive looking like three sizes of one thing. The three names are printed together, they end in the same word, and most lists put them in a row. So the natural move is to line them up on one axis, smallest to largest, and expect the middle one to sit between the other two. No such axis is anywhere in the subject, and no sentence anywhere makes one. So the three names can be read for an hour without the picture ever clicking into place. Two of these names answer one question: what is put up against a promise. The third answers a question about geography: where in a chain of parties the collateral has got to. Held as two separate questions, the whole thing resolves in about a minute.

One invented set of figures carries every number worked below, so the figures come first and it is worth knowing which is which. There is a reference asset, invented for this material and standing in for whatever a contract might reference. Its spot price is Rs 2,000.00/-. The spot price is a PRICE, and it is also the exposureThe value of the referenced thing that a position stands on. It is the base a margin percentage is struck on, and it is not itself an amount that changes hands. carried by one unit. The reference asset pays nothing at all while it is held. Saying so out loud matters more than assuming it: a payout during the holding period would move every carried figure, and this arrangement has none to work with. The agreed price on the contract is Rs 2,130.00/-, also a PRICE. The settlement price determined for the day the arithmetic keeps returning to is Rs 2,050.00/-, and that is a PRICE too.

Against that position sits collateral. The initial marginCollateral put up before a position is carried. It is not a payment for the position and it is not a deposit toward the price; it is what the arrangement holds while the promise is open. used throughout is 8.0 per cent of the Rs 2,000.00/- exposure. Eight per cent of Rs 2,000.00/- gives Rs 160.00/- on one unit, and that 8.0 per cent is a teaching figure rather than a requirement anybody has set. The requirement actually called for is set by clearing corporations under the framework of the Securities and Exchange Board of India (SEBI) at sebi.gov.in. The real requirement differs by contract and by day and it moves, so it is confirmed at source every time rather than carried across from teaching material. The invented figure is here for the ratio it exposes, and the ratio survives whatever the real percentage turns out to be on any given day.

One more piece of vocabulary. Collateral does not sit in one place; it travels. Collateral moves along a chain of parties, and each link in that chain is a tierOne link in the chain of parties that collateral moves along. The word says where something sits, not what it is made of.. The word tier is doing quiet work. A tier is a location rather than a substance, and the whole confusion here comes from reading a location word as though it named a material.

Why are these three names not three of a kind?

Put the two questions up first and the three names underneath them. The first question is: what is put up against this promise, and against what is it measured? Initial margin answers that, and so does variation margin. Initial and variation margin differ on timing and on direction, but both are answers to what. The second question is: where in the chain of parties has that collateral got to? Clearing margin answers that one, and it answers nothing else.

The reason a reader gets stuck is that all three names end in the same word, and a parallel name is a very strong suggestion that a parallel thing is behind it. Language does that constantly. Sparkling water, tap water and holy water sound like three grades of one substance, and one of them is a claim about where the water has been rather than about what is in the glass. The same shape is at work here. Initial and variation say something about the collateral. Clearing says something about the address it has reached.

Insisting on the single axis anyway forces a sentence like this one: initial margin is the small one, variation margin is the medium one, and clearing margin is the big one. Finished honestly, it falls apart at once. Big compared with what? Held by whom? Called from whom? There is no answer. The third name is not a size at all. A reader who has built that sentence in their head will then spend a week hunting for the threshold at which one becomes the other. There is no such progression, so there is no such threshold.

There is a second way the confusion shows up, and it is worth naming because it looks more sophisticated. Some readers conclude that clearing margin must be the margin that applies to cleared positions, as against some other margin for positions that are not cleared. The second reading at least has a shape to it. The second reading is still wrong. The word clearing in front of margin is not describing the contract; it is describing the party that put the collateral up and the party that received it.

What is initial margin, said completely and on its own?

Initial margin is collateral put up before a position is carried. Sizing against a move that has not happened yet is the part that feels strange the first time: something is being asked for on account of an event that is nowhere in the record, on a day when nothing whatever has gone wrong. And it remains the property of whoever put it up. The collateral has not been spent, it has not been transferred to the other side, and nobody has earned it. The collateral is being held while the promise is open.

Now the negative, and this is the one misreading that everybody arrives carrying. Initial margin is not a payment for the contract and it is not a part payment of the price. On these figures the agreed price is a PRICE of Rs 2,130.00/-, and the Rs 160.00/- put up has paid exactly none of it. Not the first eight per cent of it, not a deposit against it, not an instalment. The whole Rs 2,130.00/- is still owed at the point where it becomes owed. If the position closes out before then, the Rs 2,130.00/- never becomes owed at all, and the Rs 160.00/- was still never part of it.

An everyday version helps here because most people have met one without noticing. A car taken for a weekend from a hire counter comes with a hold placed on the customer's card for a sum that has nothing to do with the rental. The hold is not the rental. The hold is not a first instalment on the rental. Returned with a scratch, the car has the hold cover the scratch; returned clean, the hold releases and the rental is still paid in full, separately. The hold is doing a completely different job from the price. Initial margin is that hold, sized against something that has not happened, sitting beside the price rather than inside it.

Now the arithmetic, and the two limbs of it have to be read together because either one on its own misleads. On the invented figures, an exposure of Rs 2,000.00/- on one unit carries Rs 160.00/- of initial margin, being 8.0 per cent of that exposure, and the 8.0 per cent is a teaching figure. Rs 2,000.00/- of exposure standing on Rs 160.00/- of collateral is 12.50 times. The gap between the agreed price of Rs 2,130.00/- and the settlement price of Rs 2,050.00/- is Rs 80.00/-, and that Rs 80.00/- is 4.0 per cent of the Rs 2,000.00/- exposure and 50.0 per cent of the Rs 160.00/- put up. Read the two limbs in the other direction and it is the same fact written twice: one divided by 12.50 is 0.08, the 8.0 per cent again.

Here is what the invented percentage is actually for. Not the percentage. The percentage is not real and would be wrong tomorrow anyway. The relationship. A four per cent move in the referenced thing, measured on the Rs 2,000.00/- exposure, takes half of what was put down. The leverageThe exposure carried for each rupee of collateral put up. It is a ratio, so it always needs both of its numbers named before it means anything. is what is talking there, and leverage is the single fact that makes a position of this kind different to hold from a holding of the reference asset itself. The requirement on any real contract is set by clearing corporations under the framework of SEBI at sebi.gov.in and it moves, so it is read there and not from here.

What is variation margin, said completely and on its own?

Variation marginThe payment that settles a movement that has already happened. It is collected from one side and credited to the other, rather than held in a pot. is the payment that settles a movement already recorded. Variation margin is not sized against something that might happen; it is sized against something that has happened and been measured. The measuring is done by the settlement price determined for the day. A settlement price is a PRICE arrived at by a stated method rather than picked off a screen. Once that price exists, the movement is no longer a matter of opinion, and the payment follows from it arithmetically.

Loose wording contradicts the arithmetic, so the movement has to be stated precisely. The agreed price is Rs 2,130.00/- and the settlement price determined for the day is Rs 2,050.00/-. The gap between those two stated prices is Rs 80.00/-, and that gap is 4.0 per cent of the Rs 2,000.00/- exposure the margin was struck on. The base has to travel with the ratio. The same Rs 80.00/- against the Rs 2,130.00/- agreed price would be a different percentage entirely, and a statement that the price moved four per cent without naming which number the four per cent is struck on has quietly said two different things at once.

Variation margin is a PAYMENT and not a PRICE, and it does not sit in a pot waiting to be returned. Rs 80.00/- leaves one side and reaches the other. Nobody bought anything at Rs 80.00/-, so calling it a price is a category error. The error is the commonest one in this machinery: the settlement price of Rs 2,050.00/- and the payment of Rs 80.00/- sit in the same sentence and only one of them is a price. The labelling rule exists to hold that distinction. Every figure says whether it is a PRICE, a PAYMENT or a NET, and every quantity says whether it is NOTIONAL or EXPOSURE. The two labelling habits between them prevent almost every arithmetic confusion in the subject.

The difference in direction is worth one more line. Initial margin is put up and stays put up while the position is open, so it is still there to be looked at. Variation margin has gone. Variation margin was collected from one side and credited to the other, and the side that received it has received money, not a promise of money. The asymmetry is why a reader who has only met the words in a list tends to imagine both of them sitting in the same account: one of them does sit there, and the other one has already left.

What is clearing margin, and why is it not a third kind of the same thing?

Clearing marginThe collateral a clearing member puts up to the clearing corporation. The word clearing here describes who posted it and who received it, not what it is made of. is the collateral a clearing memberThe party that faces the clearing corporation on behalf of a position holder. The position holder deals with this party rather than with the top of the chain. puts up to the clearing corporation against the positions it carries, whether those positions are its own or are carried for somebody else. The definition ends there. Read it twice and notice what is not in it: no new substance, no new instrument, no new percentage. The new thing is a pair of parties.

Clearing margin is not a different material from the other two; it is initial and variation collateral again, one tier further up the chain, computed on the member's whole book rather than on any single position. Both of the first two names reappear at that tier. Something is put up in advance, and something moves when the price has moved. The names for those two jobs do not change from one tier to the next. The change is in who is posting, who is receiving, and the base the figure is computed on.

The last phrase is doing the heavy lifting and is worth slowing over. At the position holder's tier, the figure is computed on one position. At the member's tier, the figure is computed on a bookEverything a clearing member carries at one moment, its own positions and the positions it carries for others taken together., meaning everything the member carries at that moment, its own positions and the positions it carries for other parties, taken together. Two different questions get two different answers, and that should surprise nobody. The contents of that computation, and which obligations may be set against which before it is done, are set under the framework of SEBI at sebi.gov.in, and they differ by contract and by day and move.

There is a small everyday parallel that gets the shape across without any finance in it. A tenant leaves a deposit with a building manager. The building manager, dealing with the owner of the whole property, has an arrangement of their own, and whatever the manager keeps against that arrangement is a separate figure arrived at a separate way. Nobody calls the manager's figure a third kind of deposit. The manager's figure is a deposit, at a different point in the chain, computed on a different question. The word that would confuse everybody is exactly the word this subject uses: if the manager's figure were called manager deposit, half the tenants would start looking for the difference between a deposit and a manager deposit, and there is no such difference to find.

Who posts collateral to whom, and how many tiers are there?

Here is the chain, and it is shorter than most readers expect and longer than they think. A position holderThe party carrying the position. Invented, and standing in for whoever is on one side of a contract. posts collateral to a clearing member. The clearing member posts collateral to the clearing corporation. Two links, not one. The second link is the one that goes missing in almost every summary, and its absence produces every confusion here.

The party the position holder faces is not the party at the top, and the collateral the position holder put up is not what stands at the top with their name attached to it. The distinction sounds like a technicality, and it is the answer to the question most readers actually came with. The position holder deals with the clearing member. The position holder's collateral goes to the clearing member. The clearing member in turn puts up a separate figure to the clearing corporation, arrived at a separate way, on a separate question.

The everyday version is ten shops in one mall. Every shop settles its card takings through the mall office rather than dealing with the bank itself. Each shop leaves a deposit with the office. The office in turn keeps a different figure against the whole arrangement with whoever sits above it, arrived at a different way, and the office's figure is nobody's ten deposits added up. A shopkeeper who assumes their own deposit is sitting upstairs, labelled with the shop's name, has skipped exactly one link and will be looking in the wrong place the day it matters.

The missing link is easy to skip, and the reason is worth being honest about. A reader is usually told, correctly, that a clearing corporation stands between the two sides of every position and that neither side has to look at the other. The statement is true and genuinely important to know. But it describes the shape of the whole arrangement, not the route a particular party's collateral takes through it, and the two get merged in the reading. Standing between two sides is a statement about obligations. Where the Rs 160.00/- physically went is a statement about tiers. Two different sentences, and only one of them answers the question the position holder asked.

Why is the amount at one tier not the amount at the other?

Because the two tiers are answering two different questions. The collateral a position holder puts up is computed on one position. A clearing member's collateral is computed on everything the member carries at that moment, its own positions and the positions it carries for others, all together. Different question, different answer. Nothing mysterious is happening; it only feels mysterious because the two answers are both called margin and the difference in what they are computed on is rarely said out loud.

Before the arithmetic, make a prediction. The prediction is where the useful surprise lives.

Now the arithmetic. One unit carries an exposure of Rs 2,000.00/-, and at an initial margin of 8.0 per cent of that exposure, invented for teaching, it carries Rs 160.00/-. A twenty five unit holding stands in for teaching exactly as the percentage does. Twenty five units at Rs 2,000.00/- each is Rs 50,000.00/- of exposure. At the same invented 8.0 per cent of exposure that is Rs 4,000.00/-, and twenty five times Rs 160.00/- is Rs 4,000.00/- as well. The two routes agreeing is the check that the arithmetic is sound rather than asserted.

Now the ratio at each size. Rs 2,000.00/- over Rs 160.00/- is 12.50 times. Rs 50,000.00/- over Rs 4,000.00/- is 12.50 times. The amounts moved by a factor of twenty five and the leverage did not move at all. The ratio rather than the amount is what is worth carrying away from any of this. A reader who remembers Rs 160.00/- has remembered a teaching figure that applies to nothing. A reader who remembers that a four per cent move measured on the exposure takes half the collateral has remembered the shape of the arrangement, and that shape holds at every size.

And now the sentence that keeps this honest, because the simple sum above is a teaching device and not a description of anybody's real figure. A clearing member's own figure is not simply the sum of what its participants put up. Which obligations may be set against which before that figure is arrived at is set under the framework of SEBI at sebi.gov.in. The twenty five unit sum is worked here for one purpose only: to show that the ratio survives scale. The sum demonstrates that 12.50 times does not care how many units there are, and a demonstration is not a method for arriving at anything.

Whose money is whose once it has moved up a tier?

Whose money is whose is the question a reader asks about ten minutes after the tiers land, and it deserves a straight answer with a clearly marked edge on it. Collateral put up by a position holder is held apart from the clearing member's own collateral, and that separation is the entire point rather than an administrative nicety. The reason it exists is simple to state: so that one participant's collateral is not standing behind another participant's promise, and so that a participant's collateral is not standing behind the member's own.

The word for holding one party's collateral apart from another's is segregationHolding one party's collateral apart from another's, so that what one party put up is not available against what a different party promised., and the word is worth having because it comes up. The mechanism itself sits elsewhere: how that separation is done, what it covers, what it does not cover, and what happens at each edge of it are all set under the framework of SEBI at sebi.gov.in.

A member's own figures cannot be derived from a position holder's, and the gap is worth naming rather than papering over. A member's book, what it carries, what it carries for whom, and what it put up against any of it are known to the member and to the clearing corporation and to nobody else. So every member above is a shape rather than a party, and every figure attached to a member's tier stands blank. The second statement in the drawing above has an empty value in every single row, and the emptiness is the honest state of the record rather than a gap somebody forgot to fill.

One more distinction while the vocabulary is fresh. The distinction prevents a scaling error later. Every quantity in this machinery says whether it is a NOTIONAL or an EXPOSURE. The Rs 2,000.00/- a unit here is an EXPOSURE: it is the value of the referenced thing the position stands on, and it is the base the margin percentage is struck on. A NOTIONAL is the face amount a contract is written on, and not one rupee of it changes hands. Mixing the two is a separate error with its own consequences: an arrangement looks enormously larger than the cash flows it actually produces.

What is the same at both tiers, whatever the amounts are?

Three things, and then stop. First, something is put up before the promise is carried. Second, something is called when the price has moved, and it is called while the position is still open. Third, there is a stated consequence if what was called does not arrive. All three happen at the position holder's tier and all three happen again at the clearing member's tier, and the fact that the amounts are unrelated does not touch the structure at all.

The second of the three deserves attention on its own. Readers have most rarely had that sentence put to them. The call comes before the loss does. The collateral is asked for while the position is still open and while the money can still be found, not afterwards when the position has run its course and the answer is already fixed. Calling early is the whole reason the arrangement works, and it is why an account of a position that has just been marked should say plainly that nothing has gone wrong yet. Nothing has. The call is made precisely then.

The third of the three is the one the whole chain is built backwards from, and at every tier the consequence was settled before anybody needed it rather than negotiated at the moment it was needed. An arrangement that has to work under pressure fixes its rules while nobody yet knows who those rules will help. Fixing the consequence in advance is a design principle that can be stated confidently. The consequences themselves are another matter entirely: they are set under the framework of SEBI at sebi.gov.in.

The same holds for what happens further along, when a member is the party that has not delivered. There is a stated order in which a clearing corporation's resources are used, and the existence of the order is the protection: everybody knows in advance what is reached for and in what sequence, so nothing is decided in the middle of a bad afternoon. The order itself, what sits at each step of it, and how large any of it might be are all set by the authority and move. How a clearing corporation is funded and what it holds against a member failing is covered separately.

Which of these three answers the question actually being asked?

Here is the honest bit. The question underneath most searches for these three words is not a definition at all: it is who am I actually exposed to, and what stands behind my position. Nobody types three margin names into a search box because they want three definitions for their own sake. Readers want to know where their money went and who they are relying on.

None of the three definitions answers that directly. Reading all three carefully can leave a reader feeling well informed and still unable to say what they wanted to say. The answer is in the chain rather than in the vocabulary. A position holder faces the clearing member. The clearing member is the party they deal with, the party their collateral went to, and the party whose arrangement with them settles most of what happens next. The collateral standing at the top of the chain is computed on the member's whole book rather than on that one position, and the arrangement between the position holder and the member is where the rest of the answer lives.

Notice how much of that answer is structural and how little of it is numeric. The structural answer is not a dodge; it is what the arrangement actually is above the level of a single position. The record here gives one exposure and one invented percentage. The record gives no clearing corporation's own requirement, no member's net position and no threshold anywhere, so anybody trying to answer who stands behind what with a number is going to be inventing one. The structure, though, is stable and worth carrying: two links, a separate computation at each, and a separation between what participants put up and what the member put up itself.

What can never be said about carrying a position that can be called?

The arithmetic leads to one further question. Rs 2,000.00/- of exposure stands on Rs 160.00/- of collateral, at 12.50 times. A gap of Rs 80.00/- between two stated prices takes half of that collateral. Should anybody be on the receiving end of that?

The question has no answer in the contract, and not because the answer is awkward. Answering it needs facts about the holder rather than facts about the position. Five things would have to be known first: what the position exists to do, what is already held against it, what has been put up, what else could be put up at short notice, and what reaches the account on the worst day rather than on the average one. The five are the actual inputs, and not one of them is a property of the contract. All five are properties of whoever holds the position.

Whether a particular holder should carry 12.50 times is a question about the holder, and no amount of detail about the margin arithmetic will settle it. An outcome, a track record, a probability and a distribution would all be needed, and every one of them is a fact about a party rather than a fact about a contract. Understanding how a call works is not by itself a reason to be on the receiving end of one. The question belongs with the arrangement the position holder has signed and with the party on the other side of it.

The reference asset, the clearing corporation, the clearing member, the position holder and every price, payment and collateral figure here are invented.
Educational material. Not advice on any investment, tax, budget or market position.