Calls and puts
A call gives the buyer the right to buy shares at a strike price. A put gives the buyer the right to sell shares at a strike price. Buyers pay premium; sellers collect premium and accept obligations.
Options Education Center
A practical, original guide to the concepts behind options research: contract mechanics, strategy selection, risk controls, Greeks, volatility, news, sectors, catalysts, and the ConvexRadar scanner workflow.
This page is educational content only. It is inspired by broad beginner-friendly options education, but it is not a reproduction or substitute for any book, course, licensed advice, or your own trade plan.
Options Basics
Start with what an option contract actually represents before comparing strategies. Most mistakes come from skipping expiration, assignment, liquidity, or volatility context.
Strike and expiration
The strike defines the contract price level. Expiration defines the time left for the thesis to work. Shorter expirations move faster but leave less room for being early.
Intrinsic vs extrinsic value
Intrinsic value is the in-the-money portion. Extrinsic value is time, volatility, demand, and uncertainty. A contract can be directionally right and still lose if extrinsic value collapses.
Premium and break-even
Premium is the price paid or collected. Break-even is useful, but it is not the whole plan: traders also need an exit, invalidation, and expected catalyst window.
Liquidity
Volume, open interest, bid/ask spread, and contract price quality determine whether a trade can be entered and exited cleanly. Illiquid contracts can make theoretical edges unusable.
Assignment risk
Short options can be assigned, especially around expiration, dividends, and deep in-the-money contracts. Spreads reduce but do not remove operational risk.
Strategy Playbook
Options strategies should match thesis, timeframe, volatility view, account size, and risk tolerance. The goal is not to know every structure; it is to choose the structure that expresses the idea cleanly.
| Strategy | Typical view | Risk profile | What to inspect |
|---|---|---|---|
| Long call | Bullish direction and/or volatility expansion. | Defined risk: premium paid. Time decay works against the buyer. | Delta, IV rank, catalyst timing, spread, and whether the stock can move before expiration. |
| Long put | Bearish direction or hedge demand. | Defined risk: premium paid. Puts can inflate quickly when fear rises. | Trend, downside catalyst, skew, IV, and support levels. |
| Covered call | Neutral to moderately bullish stock ownership with income objective. | Stock downside remains; upside is capped above the short call strike. | Dividend timing, assignment risk, selected strike, and whether you are willing to sell shares. |
| Cash-secured put | Willingness to buy shares lower while collecting premium. | Downside similar to owning shares below the effective entry price. | Company quality, cash reserve, support, IV, and assignment plan. |
| Vertical debit spread | Directional move with lower cost than a naked long option. | Defined risk and capped reward. | Width, max loss, max gain, probability, and whether the target fits inside the spread. |
| Vertical credit spread | Directional or range-bound thesis with premium collection. | Defined risk, but losses can exceed credit received. | Short strike placement, probability, event risk, and exit rules before max loss. |
| Straddle / strangle | Large move expected; direction uncertain. | Defined risk for buyers; short versions carry substantial risk. | Expected move, event date, IV crush risk, and liquidity on both legs. |
| Iron condor | Range-bound market with volatility premium to sell. | Defined risk with capped reward. | Range width, short strikes, IV rank, earnings dates, and adjustment plan. |
| Calendar / diagonal | Time-structure view using different expirations. | Defined or partially defined depending on structure. | Term structure, near-term catalyst, long option liquidity, and volatility assumptions. |
| Protective put / collar | Stock protection or risk reduction. | Put premium or capped upside is the cost of protection. | Portfolio exposure, hedge duration, strike selection, and acceptable upside cap. |
Risk Management
The best options education is risk-first. A setup is incomplete until the downside, sizing, liquidity, catalyst risk, and exit criteria are written down.
Risk rules to write before entry
- Maximum dollars at risk and percent of account exposed.
- Invalidation level on the underlying, not just the option price.
- Exit rule for time decay when the thesis is late.
- Plan for spread widening, halts, earnings, dividends, and assignment.
- Profit-taking rule before the contract becomes a round-trip.
- Decision rule for avoiding revenge trades after a loss.
Common failure modes
Too shortThe direction is right but the expiration is too close.Too far OTMThe contract is cheap because probability is low, not because it is attractive.IV crushThe event happens, but implied volatility falls faster than price moves.Wide spreadThe trade looks profitable on paper but cannot be exited cleanly.No catalystThe thesis needs movement but there is no clear reason for urgency.
Greeks and Volatility
Greeks are not academic decorations. They explain why a contract changes when the underlying, time, volatility, and interest-rate assumptions change.
Delta
Approximate price sensitivity to a $1 underlying move. It also gives a rough probability-style read, but that read changes quickly.
Gamma
How fast delta changes. High gamma can create explosive repricing, especially near expiration and near the strike.
Theta
Time decay. Buyers pay for time; sellers collect it. Theta becomes more important as expiration approaches.
Vega
Sensitivity to implied volatility. Long options generally benefit from IV expansion and suffer from IV contraction.
IV rank and IV level
Shows whether premium is relatively high or low compared with recent history. Low IV can be attractive for buyers, but only if movement is likely.
Expected move
A market-implied estimate of possible movement over a period. It helps compare the option market's forecast against your own thesis.
Analysis, News, and Sectors
Options research improves when contract pressure is checked against the stock, the sector, the catalyst calendar, and the broader market regime.
Technical analysis
Use trend, support/resistance, moving averages, relative strength, gap zones, and volume to decide whether the underlying can realistically reach the option's target area.
Fundamental analysis
Review business quality, earnings growth, guidance, valuation pressure, balance-sheet risk, and industry position. Options timing still matters even when the company is strong.
News and catalysts
Earnings, analyst target changes, SEC filings, product launches, regulatory decisions, macro reports, and Fed events can all change volatility and direction expectations.
Sector rotation
Stocks often move with their sector. Compare a ticker against peers, sector ETFs, and index conditions before treating one contract as an isolated signal.
Market regime
Trending, range-bound, high-volatility, and low-volatility markets favor different structures. A strategy that works in one regime can be fragile in another.
Options flow context
Volume, open interest, premium value, side bias, and unusual prints can identify where attention is building. Flow does not prove direction by itself.
ConvexRadar Scanner Workflow
Use the scanner as a research funnel: reduce the market to candidates, then verify each candidate against chart, volatility, risk, catalyst, and sector context.
01
Find pressure
Start with contracts showing unusual volume, V/OI, premium value, clean liquidity, and usable delta.
02
Check price context
Review the stock trend, 50/200 averages, support, resistance, breakout levels, and relative strength.
03
Confirm catalyst
Look for earnings, filings, analyst changes, news, sector rotation, or macro events that can explain urgency.
04
Write risk rules
Define max loss, invalidation, time stop, target, position size, and what would make the trade untradable.
Practice Checklist
Before risking capital, practice reading a chain, comparing strategies, and writing a one-page plan from entry to exit.
Paper-trade review
- Pick one ticker and explain the catalyst in two sentences.
- Compare a long option, a vertical spread, and a stock-only trade.
- Estimate what happens if IV rises, falls, or stays flat.
- Record entry thesis, target, invalidation, and exit timing.
Trade journal prompts
- Was the setup directional, volatility-based, income-based, or hedge-based?
- Did the selected expiration give enough time for the catalyst?
- Was the option liquid enough to exit without large slippage?
- Did the result come from process quality or random outcome?
Apply the education to live scanner rows.
Open ConvexRadar to compare options flow, IV rank, catalysts, earnings, price context, and saved-contract follow-through.
Options trading involves substantial risk and is not suitable for every investor. This page is general education and research workflow guidance, not financial, tax, legal, or investment advice. ConvexRadar does not guarantee trade outcomes.