Volatility & Options Advanced IV behaviour around a general-election count Forward-looking

IV Around Election Results Election IV

The most obvious volatility event in the calendar is the most expensive place to be long volatility.

Quick answer: IV around election results is the largest scheduled volatility event in the Indian market, building toward roughly 28.5% implied volatility on the eve of counting day and then crushing only part-way — settling above where it began — because the new political configuration itself introduces fresh policy uncertainty that the count resolves but does not remove.

In simple words

When votes for a general election are counted, the market can move several percent in either direction within an hour as trends firm up and reverse. It is the single largest scheduled volatility event in the Indian calendar. A NIFTY at-the-money option can build from a calm 12.5% all the way to about 28.5% on the eve of counting day — roughly double what a Budget produces and more than five times an RBI meeting. But the crush afterward is different from every other event: implied volatility does not fall back to where it began. It settles around 14.0%, above the starting 12.5%, because knowing who won does not remove the uncertainty about what they will do.

That incomplete crush is the feature that sets an election apart. When the Budget speech ends, the fiscal questions are answered and volatility falls deep and clean. When the vote count ends, one question is answered — who governs — but a new one is opened: what policies the new configuration will pursue, how stable it is, what it means for specific sectors. So the option correctly refuses to crush all the way back. The count resolves the identity of the government without resolving its consequences.

Not to be confused with: A market shock, which also lifts implied volatility to a high level but is unscheduled and resolves nothing. An election count is scheduled and mostly resolves — you know exactly when the answer arrives — but it resolves incompletely, leaving a higher baseline. A shock decays over weeks from a level nobody chose; an election crushes part-way in a session from a level the whole market saw coming.

Implied volatility through a general-election count

The biggest build, and the crush that does not finish

At-the-money NIFTY implied volatility around counting day: base 12.5%, peak 28.5% on the eve, settling at 14.0% — above where it started.

Two things make this the defining event chart on the site. The peak is the highest of any scheduled event, and — uniquely — the crush stops short of the starting line. Implied volatility settles above its pre-election base because the count answers who governs without answering what they will do, so the option keeps charging for the policy uncertainty the new configuration introduces.

Professional explanation

The largest scheduled volatility event, and why

A general-election count concentrates more uncertainty into a single known day than any other scheduled event in the Indian market. Counting day can deliver intraday index moves of several percent in both directions within an hour, as early trends point one way and later rounds reverse them. The stakes are the composition of the government for years, the whole direction of economic policy, and the fate of every policy-sensitive sector at once — a breadth that dwarfs a single Budget and a depth that dwarfs any rate decision. So the option market charges accordingly: a build toward roughly 28.5% at-the-money implied volatility on the eve, against a calm base near 12.5%, is the highest scheduled reading on the calendar.

Exit polls are a second event inside the first

The election is not one event but two nested ones. Exit polls are released before counting day, and they function as a preliminary, lower-resolution version of the result. Their effect on implied volatility is genuinely two-sided. If the exit polls are decisive and point clearly to one outcome, they can collapse implied volatility early, before counting day even arrives, because much of the uncertainty has been resolved in advance. If they conflict with one another, or point to an outcome the market considers unreliable, they can inflate implied volatility further, adding a layer of doubt about whether the polls themselves can be trusted. A trader modelling the election as a single dated catalyst will misprice it, because the exit-poll sub-event can move the whole implied-volatility path days before the count.

The crush is incomplete, and that is the whole point

Every other scheduled event on this site crushes back to or below its starting implied volatility, because the event fully resolves. An election does not. When the count finishes, the market knows who governs, but it does not yet know what that government will do — its policy priorities, its stability, its posture toward specific industries are all new sources of uncertainty created by the very result that resolved the old one. So implied volatility crushes only part-way, settling above its pre-election base: from 28.5% on the eve down to around 14.0%, not back to 12.5%. That residual elevation is not a mispricing or a slow crush waiting to complete; it is the option correctly pricing the policy uncertainty that a new political configuration introduces. Reading it as leftover premium to be sold is a way to be short exactly the uncertainty the market just told you is real.

Counting day trades like nothing else

The intraday character of counting day is unlike any other event session. Because results arrive in rounds and early leads can reverse, the index can swing several percent up and several percent down within the same hour, repeatedly, before a trend holds. Realised volatility on the day can be extraordinary — and yet, because implied volatility built to 28.5%, even an extraordinary day can fall short of the priced move. The gamma of a long option position is enormously valuable in those swings, which is a genuine attraction of owning options into the count; but that value has to be weighed against the vast premium paid and the crush that follows, and against the fact that the wildest intraday session of the year can still leave a straddle underwater if the net move is inside what 28.5% implied volatility already charged for.

The most expensive way to be long volatility

A long straddle bought a month before counting day can lose money even on a violent counting day, because it paid 28.5% implied volatility for a move the market had already priced. This is the professional point and the uncomfortable one: buying volatility into the most obvious volatility event in the calendar is the most expensive way to be long volatility. Everyone can see the election coming, so the premium is marked up more than for any other event, and the bar the realised move must clear to profit is correspondingly the highest of the year. The intuition 'the election will be wild, so buy options' is the single most reliably punished intuition in Indian option trading, precisely because it is the most widely held. The move can be genuinely wild and the long option can still lose. That sentence sells no options-buying courses, which is why so few of them contain it.

Formula

Backing counting day out of NIFTY implied variance

σ²_event = σ²_total · D − σ²_diff · (D − 1), t_e = 1/365

The event-variance split at its most dramatic. On the eve the NIFTY at-the-money implied volatility is 28.5% against a 12.5% base, with D = 7 calendar days to expiry. So σ²_event = 0.285²·7 − 0.125²·6 = 0.474825, giving σ_event = 68.91% and a one-day move m = σ_event · √(1/365) = 3.61% of spot — about 866 NIFTY points at 24,000. That is the single largest scheduled event-day move on the calendar, and it is exactly what a long straddle must beat to profit.

σ²_eventVariance contributed by counting day alone — the quantity solved for.
σ²_totalSquare of the eve-of-count at-the-money implied volatility, 0.285².
σ²_diffSquare of the calm base implied volatility before the election build, 0.125².
σ_eventCounting day's own annualised volatility, √(σ²_event) ≈ 68.91% — the highest of any scheduled event.
σ_totalEve-of-count at-the-money implied volatility, 28.5%.
σ_diffCalm base implied volatility before the build, 12.5%.
DCalendar days to expiry on the eve of counting day; D = 7 in the worked example.
t_eOne event day as a fraction of a year, 1/365.
mThe one-standard-deviation counting-day move the market is pricing, m = σ_event · √(1/365) ≈ 3.61% of spot.

Why the crush is incomplete

σ_after² = σ_diff² + σ_policy² ⟹ σ_after (14.0%) ≳ σ_diff (12.5%)

After the count, the option prices ordinary diffusive variance plus a new policy-uncertainty variance the result created. That is why implied volatility settles at 14.0%, above the 12.5% it started from, rather than crushing to or below the base like a Budget or an RBI meeting. The residual is the new government's policy uncertainty, correctly priced — not leftover premium waiting to be sold.

How to read an election count out of the option chain

Take the calm base implied volatility from before the election build began. NIFTY: 12.5%.
Read the eve-of-count at-the-money implied volatility on the expiry that closes after counting day. NIFTY: 28.5%.
Count calendar days to that expiry. Here D = 7.
Apply σ²_event = σ²_total · D − σ²_diff · (D − 1) = 0.285²·7 − 0.125²·6 = 0.474825.
Square-root to the annualised counting-day volatility: σ_event = 68.91%.
Convert to a one-day move: 68.91% ⁄ √365 = 3.61% of spot, about 866 NIFTY points at 24,000 — the largest priced event move of the year.
Read the incomplete crush separately: implied volatility settles at 14.0%, above the 12.5% base, and the 1.5-point residual is the new government's policy uncertainty. Do not treat it as leftover premium to sell. Watch the exit-poll release as a second event that can move the whole path days before the count.

Practical example

NIFTY worked example

NIFTY is at 24,000, a general-election count is seven calendar days ahead of the near expiry, and the at-the-money implied volatility has built from a calm 12.5% to 28.5% on the eve — the highest scheduled reading of the year. Split counting day out. Total variance on the eve is 0.285² × (7/365) = 0.081225 × 0.019178 = 0.001558. Ordinary variance over the six non-count days is 0.125² × (6/365) = 0.015625 × 0.016438 = 0.000257. The difference, 0.001301, is counting day's variance; annualised, 0.001301 × 365 = 0.4748, so σ_event = √0.4748 = 68.9%. As a one-day move that is 68.9% × √(1/365) = 3.61% of spot, about 866 NIFTY points. Interpret it: the market is pricing an 866-point counting-day move. A long straddle bought at 28.5% needs the net move to exceed roughly 866 points, after the crush from 28.5% toward 14.0%, merely to break even. Counting day can swing several percent both ways within an hour and still net less than 866 points — which is exactly how the wildest session of the year leaves a straddle underwater.

BANKNIFTY worked example

BANKNIFTY around the count magnifies both the size and the incompleteness. Suppose the banking index builds from a 13.0% base to 31.0% on the eve, because the banking sector is acutely exposed to which government forms and to its stance on public-sector banks, financial reform and fiscal policy. Running the split with D = 7: σ²_event = 0.310² × 7 − 0.130² × 6 = 0.6727 − 0.10140 = 0.57130, so σ_event = 75.6% and the priced counting-day move is 75.6% ⁄ √365 = 3.96% of spot, about 2,059 BANKNIFTY points at 52,000. And like NIFTY, BANKNIFTY's crush is incomplete — it settles above its pre-election base, because a new government's posture toward the financial sector is a fresh, unresolved question. The lesson repeats at larger amplitude: the most exposed index prices the largest counting-day move, and buying that priced move a month early is the most expensive possible way to be long the election.

Lot sizes used above (NIFTY 75, BANKNIFTY 30) are those in force at the time of writing; NSE revises them periodically. Figures exclude brokerage, STT, exchange charges, stamp duty and GST. Examples are teaching scenarios built on round numbers — they are not historical quotes, not backtests and not trade calls.

Risk note. The election is where the intuition 'obvious big event, so buy options' does the most damage, and it is worth stating plainly: a long straddle bought a month before counting day can lose money even on a violent counting day, because it paid 28.5% implied volatility for a move the market had already priced. Buying volatility into the most obvious volatility event in the calendar is the most expensive way to be long volatility. The reverse trade is no refuge — a short straddle into 28.5% collects the largest premium of the year precisely because it stands in front of the largest tail of the year, and counting day's several-percent intraday swings can breach even a wide short before any crush arrives. There is no comfortable side of this event; there is only the priced move, and whether the realised one beats it.

Advantages & limitations

What it is good for

It is the most legible event on the calendar for the decomposition: an enormous, unmistakable build makes the eve-of-count σ_event easy to extract and the priced counting-day move (about 3.61% of spot) unambiguous.
The incomplete crush is itself a readable signal — the gap between the settled implied volatility and the pre-election base measures how much fresh policy uncertainty the market thinks the result created.
The nested exit-poll sub-event gives an early, tradeable observation point: the implied-volatility reaction to the polls reveals whether the market considers the outcome decided before the count.
The extreme gamma available into counting day is genuinely valuable in the several-percent intraday swings, which is a real attraction of owning options into the session for those who can hedge it actively.
Because the amplitude is so large, the cost of being wrong about the priced move is transparent — nobody can pretend the premium is small, which forces an honest reckoning with whether the realised move can beat it.

Where it breaks down

The single-day decomposition is stretched by the nested exit-poll event, which can move the whole implied-volatility path days before the count, so attributing all the variance to counting day overstates that one session.
The incomplete crush means the standard 'crush back to base' model does not apply — a trader who assumes a full crush will misjudge both the post-event implied volatility and the value of any position held through it.
The base implied volatility is unusually hard to fix because the build is long and the market's ambient volatility is itself often elevated by the political uncertainty for weeks, contaminating the diffusive baseline.
The extreme intraday reversals mean realised volatility and the net daily move can diverge wildly — a day of several-percent swings can net a small close, so the realised-versus-priced comparison that decides a straddle is especially treacherous.
It says nothing about which sectors the new government will favour; the index σ_event captures the aggregate counting-day move but not the sector dispersion a political change can unleash, which can dwarf the index move as it does in a Budget.

Common mistakes

Buying a straddle a month before counting day because 'the election will be wild'. You paid 28.5% implied volatility for a move already priced, and the straddle can lose even on a violent day if the net move is inside the roughly 866 points charged for.
Treating the post-count residual as leftover premium to sell. Implied volatility settles at 14.0% above the 12.5% base because a new government's policy is genuinely uncertain — selling that residual is being short exactly the uncertainty the market just confirmed is real.
Modelling the election as a single dated catalyst. Exit polls are a second event that can collapse implied volatility early if decisive or inflate it further if they conflict, so the implied-volatility path can move sharply days before the count.
Assuming a full crush like a Budget's. The election crush is incomplete by nature, so a position sized for a fall back to base misjudges the post-event level and the value of anything held through it.
Confusing a wild intraday session with a profitable long option. Counting day can swing several percent both ways within an hour and still net less than the priced move, leaving a long straddle underwater despite extraordinary realised volatility.
Selling the largest premium of the year as though the reward proved the safety. The 28.5% is the biggest premium precisely because it stands in front of the biggest tail; several-percent intraday swings can breach a wide short before any crush arrives.
Ignoring sector dispersion. Like a Budget, an election can move sectors far more than the index as the new government's favourites and targets reprice, so the index σ_event understates the risk in an exposed sector position.

Professional usage

Volatility desks model the election as a multi-stage event with two dated nodes — the exit-poll release and the count — and a residual policy-uncertainty term that survives the count. They fit the term structure so the expiry containing the count carries the enormous event variance, price the exit-poll node as a partial resolution that can pull implied volatility down early, and explicitly carry a higher post-election baseline rather than assuming a clean crush. The trade is expressed against their own estimate of the counting-day move and of how much residual uncertainty the result will leave, and it is delta-hedged aggressively through a session whose several-percent intraday reversals make gamma both valuable and dangerous.

Because the priced move is the largest of the year and the whole market can see the event, professional positioning is less about buying or selling the obvious volatility and more about relative value: counting-day variance against exit-poll variance, index variance against sector variance, and the post-count residual against the desk's view of policy uncertainty. Risk managers stress the several-percent both-way intraday path explicitly, since a position that is comfortable at the close can be breached repeatedly during the session, and they size the residual-elevation scenario separately because the incomplete crush leaves books exposed to a higher volatility regime after the event than before it.

Key takeaways

A general-election count is the largest scheduled volatility event in the Indian market — a build toward roughly 28.5% at-the-money implied volatility on the eve, against a 12.5% base.
The crush is incomplete: implied volatility settles around 14.0%, above where it began, because the count answers who governs without answering what they will do. That residual is correctly priced policy uncertainty, not leftover premium.
Exit polls are a second event nested inside the first — decisive polls can crush implied volatility early, conflicting polls can inflate it further, so the path can move days before the count.
The priced counting-day move is about 3.61% of spot, roughly 866 NIFTY points — the largest of the year, and exactly what a long straddle must beat to profit.
Buying volatility into the most obvious volatility event in the calendar is the most expensive way to be long volatility: a straddle bought a month early can lose even on a violent counting day.

The election is the clearest lesson on the site that being right about volatility is not the same as making money from it. Everyone knows the count will be wild, so the option market charges 28.5% for it — the highest premium of the year — and the realised move, however violent, has to beat that premium to pay. The incomplete crush is the second lesson layered on the first: the count resolves who governs but opens the question of what they will do, so implied volatility settles above its starting point and refuses to hand back all the premium. The most obvious volatility event in the calendar is the most expensive place to be long volatility, and that is a sentence worth more than any election-day trade.

Frequently asked questions

Why is an election count the largest volatility event on the calendar?

Because it concentrates more uncertainty into a single known day than any other scheduled event: the composition of the government for years, the direction of economic policy, and the fate of every policy-sensitive sector at once. Counting day can move the index several percent in both directions within an hour, so implied volatility builds toward about 28.5% — roughly double a Budget's peak.

Why doesn't implied volatility crush all the way back after the count?

Because the count answers who governs without answering what they will do. The new government's policy priorities, stability and posture toward specific sectors are fresh sources of uncertainty created by the result, so implied volatility settles around 14.0% — above the 12.5% base. The residual is correctly priced policy uncertainty, not a slow crush waiting to finish.

What is the incomplete crush and why does it matter?

It is the election's defining feature: implied volatility falls from 28.5% only part-way, to about 14.0%, rather than back to or below its 12.5% starting point like a Budget or RBI meeting. It matters because a trader who assumes a full crush will misjudge the post-event level and be short exactly the policy uncertainty the result just made real.

How do exit polls affect implied volatility?

Two ways, because they are a second event nested inside the first. Decisive exit polls that point clearly to one outcome can collapse implied volatility early, before counting day, by resolving much of the uncertainty in advance. Conflicting or unreliable polls can inflate it further, adding doubt about whether the polls themselves can be trusted.

How much does the market expect NIFTY to move on counting day?

About 3.61% of spot, roughly 866 NIFTY points at 24,000 — the largest priced event move of the year. It comes from σ²_event = 0.285²·7 − 0.125²·6 = 0.474825, so σ_event = 68.9% and the one-day move is 68.9% ⁄ √365. That 866 points is exactly what a long straddle must beat to profit.

Can a long straddle lose money on a violent counting day?

Yes, and it is the central lesson of the event. The straddle paid 28.5% implied volatility for a move already priced, so the net counting-day move has to exceed roughly 866 points, after the crush toward 14.0%, just to break even. Counting day can swing several percent both ways within an hour and still net less than that, leaving the straddle underwater.

Is buying options for the election a good idea?

Buying volatility into the most obvious volatility event in the calendar is the most expensive way to be long volatility, because everyone can see it coming and the premium is marked up more than for any other event. The move can be genuinely wild and the long option can still lose. Nothing here is a recommendation, and no side of this event is comfortable.

Is selling the election premium safer because it is so large?

No — the 28.5% is the largest premium of the year precisely because it stands in front of the largest tail of the year. A short straddle can be breached by counting day's several-percent intraday swings before any crush arrives, and the loss on a genuine surprise is effectively uncapped. Large premium is large risk, not a margin of safety.

Why can counting day swing several percent both ways within an hour?

Because results arrive in rounds and early leads can reverse as later rounds are counted. The market reprices violently as trends firm and then flip, so the index can move several percent up and several percent down repeatedly before a trend holds. That reversing path is why realised volatility can be extraordinary yet net a small daily close.

What does the settled 14.0% implied volatility represent?

Ordinary diffusive variance plus a new policy-uncertainty variance the result created — σ_after² = σ_diff² + σ_policy². The 1.5-point elevation above the 12.5% base is the market pricing the new government's unresolved policy path. It is a live estimate of political uncertainty, not leftover premium to be harvested.

How is the election different from a market shock?

An election is scheduled and mostly resolves — you know when the answer arrives — but it resolves incompletely, leaving a higher baseline. A shock is unscheduled, resolves nothing, and decays over weeks from a level nobody chose. The election crushes part-way in a session from a level the whole market saw coming; the shock does the opposite.

How does the election affect BANKNIFTY?

More than NIFTY, because banks are acutely exposed to which government forms and its stance on public-sector banks, financial reform and fiscal policy. BANKNIFTY can build from about 13.0% to 31.0%, implying a counting-day move near 3.96% of spot, roughly 2,058 points at 52,000 — and its crush is incomplete too, settling above its pre-election base.

Should I model the election as one event or several?

Several. The exit-poll release and counting day are two dated nodes, and a policy-uncertainty residual survives the count. Modelling it as a single catalyst overstates counting day's variance and misses that the implied-volatility path can move sharply on the polls days before the count. Professional desks carry all three components explicitly.

Is the extreme gamma into counting day worth owning?

The gamma is genuinely valuable in the several-percent intraday swings, which attracts option buyers who can hedge actively. But it has to be weighed against the vast premium paid and the incomplete crush that follows, and against the fact that the wildest session of the year can still leave a straddle underwater if the net move is inside the priced 866 points.

Does India VIX show the election build?

Yes, more visibly than for shorter events, because the build is long and the amplitude is enormous — India VIX can reach unusually high readings ahead of a count. But because it interpolates to a constant 30-day horizon, it still smooths the sharpest single-expiry spike, which a near-dated at-the-money reading shows more starkly.

Why is the base implied volatility hard to pin down for an election?

Because the build is long and the market's ambient volatility is often elevated by political uncertainty for weeks beforehand, so the 'calm base' is itself contaminated. That makes the diffusive baseline you subtract in the decomposition uncertain, and therefore the extracted counting-day variance less precise than for a clean, narrow event.

Does an election move sectors more than the index, like a Budget?

It can, because a new government's favoured and targeted sectors reprice sharply as its likely policies become clear. The index σ_event captures the aggregate counting-day move but not that dispersion, so an exposed sector position can face a far larger move than the index number suggests — the same blind spot the index has around a Budget.

What happens to implied volatility if exit polls are decisive?

It can crush early, before counting day arrives, because the polls resolve much of the uncertainty in advance. A trader holding a long straddle bought for the count can watch a chunk of the premium evaporate on the exit-poll release, days before the event they bought it for — which is why the polls have to be modelled as their own node.

What happens if exit polls conflict with each other?

Implied volatility can inflate further, because the polls add a layer of doubt rather than removing one — now the market is uncertain about the outcome and about whether any poll can be trusted. So the exit-poll sub-event is genuinely two-sided: it can either deflate or inflate the path into the count, depending on how decisive and consistent the polls are.

Why is the election the clearest example that being right is not enough?

Because everyone knows the count will be wild, the option market charges the highest premium of the year for it, and the realised move — however violent — has to beat that premium to pay. You can correctly predict a chaotic counting day, own the straddle, watch the index swing several percent, and still lose because the net move stayed inside the 866 points already priced.

Voice search & related questions

Natural-language questions people ask about iv around election results.

Why does implied volatility go so high before an election count?

Because counting day can move the market several percent either way within an hour, and it decides the government and the direction of policy for years. That is more uncertainty in one known day than any other event, so a NIFTY option builds toward about 28.5% — roughly double a Budget and more than five times an RBI meeting.

Why didn't option prices fall all the way back after the results?

Because knowing who won does not tell you what they will do. The count resolves the government's identity but opens fresh questions about its policies, stability and sector priorities, so implied volatility settles around 14.0% — above the 12.5% it started from. That leftover elevation is real policy uncertainty being priced, not a crush that failed to finish.

Should I buy a straddle for the election?

It is the most expensive way to be long volatility, because the whole market can see the event and the premium is marked up more than for anything else. The straddle needs the net move to beat about 866 points after the crush, and counting day can be wild and still net less than that. There is no comfortable side of this trade.

How much move is priced into counting day?

About 3.61% on NIFTY, roughly 866 points at 24,000, from splitting counting day out of the 28.5% implied volatility. It is the largest priced event move of the year. Owning the straddle means betting the net move beats 866 points after the crush — a high bar that a chaotic but two-sided session often fails to clear.

Do exit polls matter for options?

A great deal, because they are a second event before the count. If they are decisive they can crush implied volatility early, so a straddle bought for the count loses premium days ahead of it. If they conflict, they can push implied volatility even higher by adding doubt. Either way the path can move sharply before counting day arrives.

Is it safer to sell options into the election since premium is so high?

No. The premium is the highest of the year because the tail is the largest of the year. Counting day's several-percent swings can breach a wide short before any crush helps you, and the loss on a genuine surprise is effectively uncapped. The big premium is the market paying you to stand in front of the biggest move it prices all year.

Can the market be wild on counting day and my option still loses?

Yes — that is the whole trap. You paid 28.5% for a move already priced, so a day that swings several percent both ways can still net less than the 866 points you needed. Being right that the day would be chaotic is not the same as beating the price, and the price is the highest of the year.

Sources & references

Last reviewed 10 July 2026. Educational content only — not investment advice.