Most option sellers make the same quiet mistake. They often sell options that are far out of the money, resulting in a premium that is barely worth the trade. A rupee here, two rupees there, and they call it safe. I call it a waste. In this column, I want to walk you through exactly how I select a strike price when selling options on Nifty and Bank Nifty and why the sweet spot is never at the extreme end. There is a better way. One that collects real premiums, uses time wisely, and lets option prices decline naturally
Why Index Options: Nifty and Bank Nifty Specifically
Before we discuss strike selection, the instrument matters. I work exclusively with index options, Nifty and Bank Nifty. The reasons are straightforward.
Liquidity and Volatility: The Two Non-Negotiables
Index options are among the most liquid instruments in the Indian market. Tight bid-ask spreads, deep order books, and predictable behavior during normal sessions make them far more manageable than individual stock options. Bank Nifty offers higher volatility and, therefore, a higher premium, while Nifty is comparatively steadier. I choose between them based on market conditions and what the premium chart is telling me.
Stock options, by contrast, carry event risk: results, news, and promoter activity. An index absorbs shocks more evenly. For a seller, that matters enormously.
The Strike Selection Principle: Not Too Close, Not Too Far
This is the heart of my strategy, and it differs from what most option writing guides will tell you. The conventional wisdom is to go as far out of the money as possible. Collect tiny premiums and sleep peacefully. I have a different perspective.
The Problem with Deep OTM Options
When a strike is very far from the current market price, the premium is negligible, sometimes just â‚ą1 to â‚ą5. There is no meaningful income there. More importantly, since I also trade based on price action, there is no point entering a trade where the option’s own chart tells me nothing useful. A flat, lifeless premium chart is not a trade setup; it’s just noise.
My Sweet Spot: Meaningful OTM Premium
I look for strikes that are out of the money, but not so far that the premium becomes worthless. The premium should be substantial enough to justify the trade and to show a clear declining pattern on the premium chart. This strategy is where the real opportunity sits, collecting genuine income while still having a reasonable buffer from the market price.
OTM Strike Comparison – Where I Actually Trade
| Strike Type | Premium Received | Risk Level | Recommended? |
| Deep OTM (very far) | Negligible, ₹1 to ₹5 | Low but pointless | ❌ No |
| Far OTM (my sweet spot) | Meaningful, â‚ą30 to â‚ą80+ | Moderate, manageable | âś… Yes |
| Near OTM (close to market) | High, ₹100+ | High — vulnerable to moves | ⚠️ With caution |
| ATM (at the money) | Very High | Very High | ❌ Not for sellers |
.*Â Table 1: Comparing strike types for option selling. My focus is on the ‘Far OTM’ zone.
Markets Fall Fast, and Option Sellers Can Profit From It
Jesse Livermore’s Lesson on Falling Prices
Jesse Livermore, arguably the greatest trader in history, observed something that remains true today: markets fall far faster than they rise. He made some of his largest fortunes by positioning during sharp market declines. This principle applies directly to option selling.
When markets drop quickly, call options on the index lose value rapidly. An OTM call I sold at a meaningful premium can decay sharply in a matter of sessions during a falling market, delivering a quick, clean profit. This is not speculation. This is understanding how market gravity works and letting it work for you.
I pay close attention to the premium chart of the option I am selling. A declining trend on that chart, independent of the index movement, is often the confirmation I need that the trade is working as expected.
Time Decay: The Option Seller’s Silent Partner
What Is Theta Decay and Why Does It Matter?
The time value is the part of an option’s price that represents the time remaining until it expires. Every option has a time value. This time value decreases as the expiry date nears. This process is known as ‘theta decay,’ and it accelerates as the expiration date approaches.
Here is the key insight: every single day that passes, an option’s price falls slightly, even if the underlying market doesn’t move at all. As the seller, you collected that premium upfront. Time decay is simply returning that value to you, day by day, as the option moves closer to expiry.
Why Do I Choose Expiry 3–4 Weeks Away?
I do not sell weekly options or options that expire in just a few days. I prefer strikes that have at least 3 to 4 weeks remaining until expiry. That gives me time, time to be right, time to trade, and time for theta to work for me in a steady way, rather than the violent swings that occur in the last days before expiry.
Weekly expiry options carry high gamma risk — small moves in the index can cause disproportionately large moves in the option price. That is not a game I want to play as a seller. A longer expiry means smoother decay and more breathing room.
Reading the Premium Chart Before Entry
This is a step that most option sellers skip entirely, and it is where I believe my approach differs the most. Before I enter any trade, I analyze the price chart of the option premium itself, not just the underlying index.
What I Look for on the Premium Chart
A clear declining trend on the premium chart tells me the option is already losing value, that sellers are in control, and that the market is not pricing in a big move in that direction. That declining trend is my signal. It confirms that time decay is active, that the strike is well-placed, and that the trade has a structural edge.
If the premium chart is flat, choppy, or showing upward pressure, I wait. There is always another trade. Patience, as I have said before in this column, is not a soft quality; it is a sharp edge.
Stop-Loss: Non-Negotiable, Even With Distant Expiry
A common misconception among option sellers is that a distant expiry date removes the need for a stop-loss. It does not. A 3–4 week expiry gives you time, but the market can move sharply and decisively in that window. Without a predefined stop-loss, a manageable loss can become a damaging one.
I define my stop-loss before entering the trade. Whether it is a premium-based stop (e.g., exit if the premium doubles) or an index-level stop, the level is set before the position is open. This is not optional. It is the difference between a disastrous trade and a blown account.
Strike Selection Checklist: Run This Before Every Trade
Before I enter any option selling trade, I run through the following checklist. Every item must be verified. If any essential item fails, I do not enter the trade.
| # | Checklist Item | What to Verify | Priority |
| 1 | Instrument | Nifty or Bank Nifty only; high liquidity, regulated volatility | Essential |
| 2 | Option Type | Sell OTM calls or puts, but not deep OTM (negligible premium) | Essential |
| 3 | Premium Value | A strike should carry meaningful premium, enough to justify the trade | Essential |
| 4 | Expiry Date | A minimum of 3–4 weeks away allows time decay to work in your favor. | Essential |
| 5 | Premium Chart | Analyse price decline on the premium chart before entry | Essential |
| 6 | Price Action | Check underlying index chart; identify trend, support, resistance | Essential |
| 7 | Volatility Check | Avoid selling during extreme VIX spikes; the premium is inflated but risky | Important |
| 8 | Stop-Loss Level | Define stop-loss before entry; it’s non-negotiable, even with distant expiry | Essential |
| 9 | Theta Confirmation | Confirm time decay is actively eroding the premium | Important |
| 10 | Risk-Reward Ratio | Ensure reward justifies the risk; do not take lopsided trades | Important |
* Table 2: Pre-trade checklist for option sellers. All ‘essential’ items must be confirmed before entry.
Final Thought
Strike selection is not a formula; it is a judgment, sharpened by experience and guided by process. The goal is never to identify the safest trade. The goal is to identify the right trade: one where the premium is worth collecting, the time is working for you, the price action confirms your thesis, and the stop-loss is already defined.
Selling worthless options is not a strategy. It is hope, dressed up as caution. Sell what is worth selling. Manage what can go wrong. Let time and gravity do the rest.
That is what this column is about, not tips, not shortcuts, but the thinking behind every trade I place. Next week, we go deeper.
Disclaimer: This column reflects the author’s personal trading experience and analysis. It is not financial advice. Please consult a registered advisor before making any investment decisions.
Satyajit Baidya
An option writer who came to the markets through curiosity and stayed through conviction. He studies price action through the lens of Elliott Wave theory and draws his trading philosophy from Jesse Livermore—the belief that discipline, timing, and patience matter more than predictions do. A student of history by training, he sees the market as just another chapter in a very long story: the details change, the patterns don’t.
