Updates to help you make informed trading decisions.
Margin Shortfall & Liquidation, Explained
Why your positions can get squared off, when it can happen, and how to stay in control.
If your positions were recently squared off — or you simply want to make sure they never are — this guide explains how margin shortfall and liquidation work at Kotak Neo, in plain language.
Most liquidations come as a surprise. They shouldn't. Here's what can help you stay ahead of it:
- Keep a buffer. Don't trade right at your required margin — leave room for overnight increases and sudden moves.
- Act on alerts promptly. The moment you get a margin-call notification, add funds or reduce exposure. Waiting shrinks your options.
- Watch your Funds page. Whenever you see a negative margin balance there, add funds promptly — treating it as your earliest signal to act.
What is a margin shortfall?
To keep an F&O or MTF position open, you must hold a minimum amount of money or eligible collateral in your account at all times. This is your required margin.
A margin shortfall is simply the gap that appears when the funds and collateral in your account fall below that required amount. Left unresolved, that gap can lead to liquidation — Kotak Neo squaring off some of your positions to recover it.
Quick example: Required margin is ₹1,00,000, but your available margin drops to ₹90,000. You now have a ₹10,000 shortfall that needs to be cleared promptly.
Why does liquidation happen?
Here's the part that catches most people off guard: a shortfall can appear even if you haven't placed a single new trade. Your margin requirement is not fixed — it moves. These are the common triggers.
As the market moves, your open positions are marked to market and any loss is adjusted against your available margin in real time. So if the market is moving against you, your margin can shrink through the day — even though you're still holding the position.
The exchange levies two margins on derivatives at all times — SPAN and Exposure. The SPAN component can rise overnight, so you may log in to find your required margin higher than it was the previous evening — putting you in shortfall before the market even opens.
On index options expiry day, the exchange levies an additional exposure margin of 2% on open positions — over and above the daily exposure margin already in place. It applies specifically on that day.
If you hold futures or options across two expiries (say June and July), you get a reduced margin for that spread. This benefit is available only up to one day before the near-month expiry — after which your requirement jumps to that of two separate positions. This applies to weekly expiries too — the spread benefit for that week's contract is removed the same way, one day before its expiry.
In the week before expiry, the exchange progressively adds delivery margins on stock options, raising your requirement as expiry approaches. This is because stock options that are in the money are physically settled on expiry — meaning you must actually take delivery of the underlying shares, which requires sufficient funds in your account.
If you've pledged shares as collateral, a drop in their price lowers the margin they provide. The same happens if the haircut on those securities goes up — the available margin against that stock falls, and you can slip into shortfall without trading at all.
For MTF specifically, if the price of your funded shares falls, their value as collateral drops — and if the gap between that value and your margin requirement gets large enough, a margin call is raised. See the MTF section below for a detailed example of how this can create a shortfall.
When a stock is moved to the Trade-to-Trade (T2T) segment, two things happen at once: the pledge margin benefit on that stock is removed, and any MTF position in it is converted to CNC (Cash & Carry) — meaning you're expected to pay for it in cash. Either change can push you into a shortfall.
For certain corporate actions such as mergers, Kotak Neo may convert your MTF position to CNC (Cash & Carry) one day before the ex-date — meaning you're required to pay the full value of the shares. If there is a shortfall at that point, the position may be squared off.
Liquidation types
Here's how liquidation works across the different types of shortfall.
F&O shortfall
An F&O shortfall can arise at the start of the day if SPAN margins rose overnight — meaning you may already be in shortfall before you've placed a single trade. It can also develop during the day: as underlying prices move, the SPAN margin requirement recalculates in real time, and if it rises beyond your available margin, a shortfall is triggered.
When liquidation is triggered, the system picks the position — or combination — whose closure releases margin closest to the shortfall, and aims to square off as little as possible.
Example: Shortfall of ₹10, with positions blocking ₹25, ₹12 and ₹8 of margin. The ₹12 position is squared off — closest to the shortfall — rather than the ₹25, which would release far more than needed.
MTF shortfall
An MTF shortfall arises in two ways: either the value of your funded shares falls and the margin available against them is no longer sufficient, or the collateral you used to fund the initial MTF margin loses value — for instance, if the haircut on those pledged shares increases. In both cases, if the shortfall is unresolved, funded and/or collateral shares are liquidated to recover it.
Example 1 — MTF share price falls:
You buy shares worth ₹1,00,000 under MTF by paying ₹25,000, while the remaining ₹75,000 is funded. The next day, the share price falls by 10%, reducing the value of your shares to ₹90,000. This results in an MTM loss of ₹10,000, which is adjusted against your available margin.
- Initial margin: ₹25,000
- Less MTM loss: ₹10,000
- Available margin: ₹15,000
- Required margin (25% of ₹90,000): ₹22,500
- Margin shortfall: ₹7,500
A margin call is raised asking you to add ₹7,500 (or eligible securities of equivalent value). If the shortfall isn't covered, shares worth ₹30,000 may be sold.
Why ₹30,000 when the shortfall is only ₹7,500?
The margin requirement is 25% — so every ₹1 reduction in your MTF position reduces the required margin by only ₹0.25. To eliminate a ₹7,500 shortfall: ₹7,500 ÷ 25% = ₹30,000 worth of shares need to be sold.
- After selling ₹30,000 worth of shares:
- Remaining MTF position: ₹60,000
- Required margin: ₹15,000 (25% of ₹60,000)
- Available margin: ₹15,000
The available margin now matches the required margin — shortfall fully eliminated.
Example 2 — Collateral value drops due to haircut increase:
You buy shares worth ₹1,00,000 under MTF by providing approved shares as collateral instead of cash. The market value of the pledged shares is ₹31,250, with an initial exchange-prescribed haircut of 20%.
- Market value of collateral shares: ₹31,250
- Haircut: 20%
- Eligible collateral value (available margin): ₹25,000
A few days later, the exchange increases the haircut on these shares from 20% to 40%. The market value of the shares hasn't changed, but the eligible collateral value drops.
- Market value of collateral shares: ₹31,250
- Haircut: 40%
- Eligible collateral value (available margin): ₹18,750
Since the MTF position is still worth ₹1,00,000, the required margin remains ₹25,000.
- Available margin: ₹18,750
- Required margin: ₹25,000
- Margin shortfall: ₹6,250
A margin call is raised asking you to add ₹6,250 (or eligible shares of equivalent value) to maintain your MTF position.
Equity MIS shortfall
Intraday (MIS) positions are leveraged and carry a built-in, automatic square-off when the position's intraday risk limit is breached. There is no notification window and no chance to add margin once it fires. It exists to cap the risk that intraday leverage creates, so treat MIS positions as ones you must watch yourself.
CUSPA — unpaid shares
CUSPA stands for Client Unpaid Securities Pledgee Account. It applies when you buy shares but the purchase amount isn't fully paid by the due date.
If shares bought are not paid for in full, resulting in a negative available margin, the purchased shares will be auto-pledged to the Client Unpaid Securities Pledgee Account (CUSPA). If the outstanding amount is not paid within the timeline specified under the applicable regulatory guidelines, the shares lying in CUSPA may be sold to recover the outstanding dues.
Debtors ageing liquidation
This one is different — it isn't about margin at all. It applies when you owe Kotak Neo money — a debit balance in your ledger — that stays unpaid beyond 5 days. Your ledger can go into debit for several reasons: brokerage and statutory charges, or other dues that haven't been settled. Once the debit crosses 5 days, as per SEBI and exchange guidelines, Kotak Neo may sell pledged shares worth the outstanding amount to recover it — much like a long-overdue bill being collected.
Example: You have an unpaid debit balance of ₹5,000 — say from brokerage charges or a pending purchase. Once the overdue period crosses the permitted limit, Kotak Neo may sell pledged shares worth ₹5,000 to clear it.
How to avoid liquidation
- Monitor your margin regularly — especially in the week before F&O expiry, when delivery margins apply and the spread benefit is removed on expiry day.
- Keep a buffer above the minimum. Trading at the edge leaves no room for an overnight SPAN increase or a sudden move.
- Act on notifications immediately. The sooner you respond to a margin call, the more ways you have to resolve it on your own terms.
- Track your pledged collateral — a fall in those share prices quietly reduces your available margin.
- Clear debit balances promptly to avoid a debtors ageing liquidation.
- Keep your contact details updated so alerts reach you without delay.
Common questions
Yes. MTM losses from daily settlement, an overnight SPAN increase, a fall in pledged collateral value, or a higher haircut can each create a shortfall on their own. Margin requirements are not static.
No. Only enough to cover the shortfall. For F&O, the system picks the most margin-efficient position to square off; for MTF, only as many shares as needed are sold. In fast-moving markets, however, more may be sold than in calm conditions.
The exchange levies an additional 2% Extreme Loss Margin (ELM) on short index option positions over and above the normal SPAN and ELM requirements on the expiry day. This increases the overall margin requirement for the position, and you may need to maintain additional funds or eligible collateral to continue holding the position.
Kotak Neo will notify you the same day. If you don't sell the position or convert it to CNC (Cash & Carry), Kotak Neo may convert it to CNC on your behalf.
If shares bought are not paid for in full, resulting in a negative available margin, the purchased shares will be auto-pledged to the Client Unpaid Securities Pledgee Account (CUSPA). If the outstanding amount is not paid within the timeline specified under the applicable regulatory guidelines, the shares lying in CUSPA may be sold to recover the outstanding dues.
No. A margin shortfall liquidation happens because your positions don't have enough margin. A debtors ageing liquidation happens because you owe Kotak Neo money that hasn't been repaid in time — regardless of how your positions are doing.
Example: You could have a healthy, well-margined portfolio, but if a ₹10,000 debit balance from an old transaction stays unpaid past the permitted period, shares worth ₹10,000 may still be sold from your pledged holdings to clear it.
F&O positions are liquidated first to cover the shortfall. MTF positions are touched only if the F&O proceeds are not enough.