Options field guide
Understand what can change an option before the next checkpoint
An option can move the right way and still miss your target. These guides explain contract mechanics, strategy tradeoffs, and the stock, timing, and volatility assumptions behind an outcome
Path studies
See how the same target changes when conditions move
Follow illustrative option targets across two snapshots and separate the effects of price, implied volatility, and time
NVDA · Illustrative Path Study
How the same option target’s required move widened from 2.2% to 3.5% overnight
The target premium and checkpoint stayed fixed. A lower NVDA price and lower implied volatility moved the estimated price required to reach them
- Required move
- 2.2% → 3.5%
- Required price
- +$1.37
AMD · Illustrative Path Study
Why a 2.9% stock gain still pushed the call target farther away
The stock moved in the holder’s favor. A 24-point volatility reset moved the estimated required price even faster
- Required move
- 3.6% → 5.0%
- IV assumption
- 62% → 38%
SPY · Illustrative Path Study
How a volatility jump cut a put target’s required decline from 3.3% to 1.3%
A lower underlying price and a 10-point volatility increase worked together, bringing the illustrative put target materially closer
- Required decline
- 3.3% → 1.3%
- IV assumption
- 18% → 28%
743 guides
What stock price does my call need to reach?
Estimate the stock price behind a call premium target using the contract, checkpoint date, implied volatility, and an executable quote range
Read guideWhat stock price does my put need to reach?
See how the checkpoint date and pricing assumptions shape the stock-price condition behind a put premium target
Read guideWhy did my call fall after the stock rose?
Understand how time, implied volatility, and quote quality can outweigh the benefit of a rising stock for a call option
Read guideWhy did my option target change since yesterday?
Learn why the underlying price required for the same option premium can change when time or volatility inputs move
Read guideHow does time decay change an option target?
See why an unchanged option premium target can require a larger stock move as time passes, with a dated example and checkpoint comparison
Read guideWhat is implied volatility crush?
Understand why IV can fall after earnings, work through a 45%-to-28% example, and compare the stock move with the volatility effect
Read guideWhat happens to options after earnings?
See how the actual earnings move, the move priced into options, post-event IV, and remaining time combine in the next option quote
Read guideHow to read options volatility before and after earnings
Interpret event-driven implied volatility, expected move, and post-report repricing without treating them as forecasts
Read guideBid, ask, mid, or mark: which option price should I use?
Distinguish displayed buying and selling interest from indicative option values that are not guaranteed execution prices
Read guideWhy an option's last price can be misleading
Learn why a stale last trade can conflict with intrinsic value and current quotes, and which timestamped prices to use for analysis
Read guideWhat does no feasible result mean for an option target?
Understand why a pricing scenario may not contain an underlying price that matches the selected option premium
Read guideIs an option target estimate a stock-price forecast?
Learn why a required underlying price is a conditional model result rather than a prediction or probability
Read guideOption break-even: formulas and examples
Calculate long call and put break-even prices at expiration, handle spreads and contract multipliers, and avoid early-exit mistakes
Read guideHow to set an option profit target
Turn a percentage-return idea into a premium, checkpoint, stock-and-volatility condition, and executable exit plan
Read guideHow to set an option stop loss
Design an option stop-loss rule around the right trigger, order type, liquidity, and maximum-loss branch
Read guideHow to manage option assignment risk
Build a practical assignment plan for short calls, short puts, spreads, dividends, expiration, and margin
Read guideWhen to skip an option trade: a restraint checklist for uncertain setups
Learn the practical conditions that make an option idea untradeable, including unclear thesis, poor liquidity, weak execution, undefined loss, and capacity constraints
Read guideCan you sell a covered call on margin?
Learn how a covered call works in a margin account, why the short call may need no separate margin when shares cover it, and how borrowing, maintenance, assignment, and liquidation change the risk.
Read guideCovered call roll up vs. roll out: what is the difference?
Compare a covered-call roll up, roll out, and roll up and out with cash-flow examples, new upside caps, assignment risk, fills, dividends, and records.
Read guideFutures Bracket Orders Explained
Learn how futures bracket orders connect an entry, profit limit, and protective stop, including partial fills, transmission, slippage, and broker-specific failure paths.
Read guideHow to Avoid Unintended Futures Delivery
Identify physical versus cash settlement, calculate the true first-notice and last-trading deadlines, and close or roll a futures position before delivery risk becomes operational risk.
Read guideHow to Build a Futures Trading Plan
Create a usable futures trading plan with a defined objective, setup rules, position sizing, margin buffer, execution checklist, journal, and stop conditions.
Read guideHow to choose a cash-secured put strike price
Choose a cash-secured put strike from the share price you would truly buy, then compare premium, downside, assignment, expiration, liquidity, and portfolio concentration.
Read guideHow to choose a covered-call strike price
Choose a covered-call strike from your acceptable sale price, upside target, premium cushion, assignment plan, expiration, liquidity, and tax-lot constraints—not from yield alone.
Read guide