Crypto Options Monthly Expiry Day Playbook: Why Options Sellers Love This Day

Avneesh Asija
Mar 27
4 min read

Today’s Numbers at a Glance

Date: March 27, 2026. Monthly + Quarterly expiry.

Delta Exchange India expiry: 5:30 PM IST. Deribit: 1:30 PM IST (08:00 UTC).

$14.16B in BTC options expiring on Deribit — ~40% of all open interest.

BTC Max Pain: $75,000 (spot: ~$71,000). Put/Call Ratio: 0.85.

IV compressing. Theta at peak. If you’re an options seller, today is payday.

Crypto Options Monthly Expiry Day Playbook: Why Options Sellers Love This Day

Today is Crypto options monthly expiry on Delta Exchange India, coinciding with Deribit’s quarterly expiry — the largest options settlement of Q1 2026. Whether you trade options or are still learning, understanding expiry day mechanics gives you an edge most retail traders never develop.

This is written from the options seller’s perspective. At TradeSteady, our core strategy is selling straddles and short premium structures. Expiry day is where that edge shines brightest.

What Happens at Monthly Expiry?

At 5:30 PM IST on Delta Exchange, every open options contract for this month settles:

ITM options get exercised automatically. If you sold a $70K call and BTC is at $72K, you pay the difference.
OTM options expire worthless. The premium the buyer paid is gone. The seller keeps it as pure profit.
ATM options are the battleground — where the fight between buyers and sellers is fiercest in the final hours.

The key insight: 60–80% of options expire worthless across all markets and timeframes. That is the structural edge options sellers exploit, and it is most visible on expiry day.

Max Pain: The $75,000 Magnet

Today’s BTC max pain on Deribit is $75,000, with spot at ~$71,000. Max pain is where options sellers pay out the least — the price where the most contracts die worthless.

It acts as a gravitational pull. Market makers delta-hedge in spot and futures, nudging price toward max pain as expiry approaches. CoinDesk research shows BTC settles within 5% of max pain roughly 60–65% of the time on quarterly expirations.

TradeSteady Insight

On Delta Exchange India, monthly expiry max pain levels have a weaker magnetic effect than Deribit’s quarterly expiries because OI is smaller. But the concept still matters: knowing where max pain sits helps you gauge which of your short strikes are likely to expire worthless and which are at risk.

Why Theta Peaks on Expiry Day (And Why Sellers Win)

Theta measures how much an option loses daily just from time passing. The critical thing: theta decay is not linear. It is exponential.

An option with 30 days to expiry might lose Rs 10/day. The same option with 1 day left might lose Rs 200. On expiry day, remaining time value evaporates to zero by 5:30 PM.

The Math: How Expiry Pays Sellers

You sold a BTC ATM straddle yesterday on Delta at a combined premium of Rs 4,000.

BTC moved only 1%. Both legs are bleeding value fast.

By 3 PM IST, theta has eaten ~80% of remaining premium. Your straddle is worth Rs 800.

At 5:30 PM, if BTC stays in range, both expire worthless. You keep the full Rs 4,000.

Your job today: manage risk and let time do the work. That’s the seller’s edge.

The Playbook: Before, During, After

Before Expiry (Morning)

Check positions. Know your short strikes, breakevens, and how far BTC needs to move to hurt you.
Review max pain. Short strikes near max pain = odds in your favour.
Monitor IV. If IV is elevated, consider selling premium for next week’s expiry at inflated prices.

During Expiry (Afternoon → 5:30 PM IST)

Do not overtrade. If you’re positioned, let theta work. No new FOMO entries in the last 2 hours.
Watch gamma. Sudden BTC moves near your strike change delta rapidly. Have a predefined exit, not a prayer.
Avoid 4:30–5:30 PM for new trades. Liquidity thins, spreads widen. You’re gambling, not trading.

After Expiry (Evening)

Journal it. Entry premium, result, max drawdown, lessons.
Roll forward. Many sellers immediately re-enter for next expiry while IV is still elevated from settlement activity.
Check the bigger picture. $14B+ of hedging pressure just left the market. BTC may move more freely post-expiry. Read our weekly outlook for updated supply/demand zones.

Today’s Numbers

Metric	BTC	ETH
Deribit OI Expiring	$14.16 Billion	~$2.2 Billion
Max Pain	$75,000	~$2,200
Current Price	~$71,000	~$2,080
Put/Call Ratio	0.85	~0.90
IV Trend	Compressing	Compressing
Delta Expiry	5:30 PM IST	5:30 PM IST

FAQ

What time do options expire on Delta Exchange India?

All options expire at 5:30 PM IST. Daily, weekly, and monthly expiries are available for BTC and ETH.

What is max pain and does it always predict expiry price?

Max pain is where most options expire worthless. It acts as gravitational pull but is not guaranteed. It is more reliable on large quarterly expiries than weekly ones.

Should beginners trade on expiry day?

Observe first. Watch premium decay, price behaviour around max pain, and IV compression. This observation is worth more than any trade you could take. When ready to learn options selling, TradeSteady’s Crypto Mastery Course covers the complete framework.

Learn Options Selling at TradeSteady

Straddles, strangles, premium decay, Greeks, IV crush — this is our daily bread. We trade it on Delta Exchange India every single day, and we teach it live. If this playbook clicked, the full course takes you from understanding to execution.