What is Premium?
Option premium is the market price of the contract — total debit or credit per lot.
Formula
Premium = Intrinsic Value + Time Value
Indian market context (NSE)
Reference levels: Nifty 50 at 24,300, Reliance Industries at ₹1,300, Bank Nifty futures at 55,000 (lot size 30). Examples below show how Premium shows up on Indian index, equity, and futures books — update to live quotes in your journal.
Nifty 50 perspective
Nifty at 24,300: weekly/monthly option chains centre on round strikes (24,000 / 24,500). Premium (Options) on ATM Nifty options shifts quickly into expiry — India VIX and event risk (RBI, budget) reprice premiums independent of spot.
Reliance Industries perspective
Reliance at ₹1,300: stock options are American-style on NSE with liquidity concentrated near ATM strikes. Premium (Options) behaviour on ₹1,300 handle differs from index options — watch assignment on short ITM legs before expiry.
Bank Nifty futures perspective
Bank Nifty futures at 55,000: hedging with options or trading premium (options) on Bank Nifty weekly contracts — theta and gamma rise sharply into Thursday expiry; futures leg has no time decay but carries overnight gap risk.
How to validate
- Validate Premium separately for index weeklies vs stock options.
- Stress-test with expiry-week and event-week subsets (RBI, budget, results).
- Confirm margin and tail-loss scenarios are logged for short premium books.
- Discard readings polluted by untagged discretionary adjustments.
How to track in TradeLyser
- Tag every leg: structure, DTE, moneyness, and whether Premium was a primary driver.
- Log planned max loss ₹ on entry for short premium strategies.
- Weekly: list open short ITM/ATM legs before expiry with a written roll/close rule.
- Separate F&O account tags from cash equity for Premium statistics.
Best practices
- Size Premium trades with margin headroom for gaps and assignment.
- Prefer defined-risk structures when learning a new options concept.
- Roll or close based on written DTE rules, not convenience.
- Keep weekly index and monthly stock books in separate tags.
Common pitfalls
- Short premium without defined max loss while Premium risk builds.
- Holding illiquid stock options into expiry without a plan.
- Blending index and stock gamma exposure in one tag.
- Ignoring margin spikes on gap opens.
How to use this in TradeLyser
Log premium per lot and total rupees at entry and exit.
Related terms
A call option grants the buyer the right, not obligation, to buy the underlying at the strike before or at expiry, depending on contract style.
Margin is the deposit brokers require to hold leveraged positions. It can rise sharply into expiry or on gap moves against you.
A put option grants the buyer the right to sell the underlying at the strike. Buyers profit from declines; sellers take on obligation if assigned.
Theta measures expected premium change from passage of time, holding other factors constant. Long options usually have negative theta; short options collect theta.
FAQ
Premium vs spread cost?
Pay ask on buys — log fill vs mid.
Credit premium strategies?
Tag max loss not only credit collected.
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