Definition
An option is a standardized contract between two parties: the buyer pays a cash premium for the right, but not the obligation, to buy or sell 100 shares of an underlying asset at a fixed strike price on or before an expiration date. The seller (writer) collects that premium and takes on the matching obligation — to deliver shares if a call is exercised, or to buy shares if a put is exercised.
Options trading is the full activity of opening, managing, and closing positions built from these contracts. The two primitives — calls (right to buy) and puts (right to sell) — combine with the two sides — long (bought) and short (sold) — into four single-leg positions, and every advanced strategy in the discipline is a combination of those four at different strikes and expirations. Because each contract controls 100 shares, options provide leverage: a small move in the underlying can produce an outsized percentage swing in the option, in either direction.
Sincere reminds readers that options pre-date modern stock exchanges — farmers and merchants used option-like agreements for centuries to lock in future prices. The instrument is a tool for managing uncertainty first; the speculative reputation is only one of its four uses.
Why it matters
How it works
Contract anatomy: strike, expiration, premium
Every option is fully specified by four facts: the underlying (a stock, ETF, or index), the type (call or put), the strike price, and the expiration date. Together they fix what the contract is a bet on. The market then assigns a premium — the cash price to buy or sell that contract today — and that premium itself decomposes into exactly two parts. Intrinsic value is what the option would yield if exercised immediately: for a call, the stock price minus the strike (floored at zero); for a put, the strike minus the stock price (floored at zero). Time value is everything else — the market's payment for the possibility that the contract will move further in-the-money before expiration.
At expiration, time value is zero by definition; only intrinsic value remains. Every decision an options trader makes — which strike to pick, when to enter, when to close — is ultimately a bet on how those two components will evolve before the clock runs out.
The four primitive positions
The two contract types times the two sides give four single-leg trades, and these are the building blocks of every multi-leg structure in the rest of the discipline. A long call pays premium and profits if the stock rises above strike plus premium; a short call receives premium and profits if the stock stays below strike plus premium. A long put pays premium and profits if the stock falls below strike minus premium; a short put receives premium and profits if the stock stays above strike minus premium.
The payoff shapes of those four are not symmetric. Bought options can only lose the premium paid — that loss is capped. Sold options can lose far more than the premium received: a naked short call has theoretically unlimited loss if the stock rockets, and a naked short put can be wiped out if the stock gaps to zero. That asymmetry is the single most important fact governing position sizing, approval levels, and the existence of spreads.
The Greeks: five letters that explain price moves
An options chain looks chaotic until you learn the Greeks — partial derivatives that isolate one input's effect on the premium while holding everything else constant. Delta measures how much the option moves per one-dollar move in the stock (zero to one for calls, zero to minus one for puts), and doubles as a rough probability that the option will finish in-the-money. Gamma measures how fast delta itself changes; it peaks for at-the-money options near expiration. Theta is the daily decay in time value, always negative for long options and accelerating in the final thirty days. Vega is sensitivity to a one-point change in implied volatility — the same contract costs more when the market expects bigger moves. Rho is sensitivity to interest rates and is usually small enough to ignore for short-dated trades.
For most retail traders, delta and theta do the bulk of the explanatory work. Vega comes into focus around earnings announcements, when implied volatility inflates option prices in advance and then collapses ("IV crush") right after the report — one of the most common ways a trader makes a correct directional call and still loses money.
Implied volatility and the price of expectations
Implied volatility (IV) is the market's consensus expectation of future price movement, reverse-engineered from the option's premium. Two traders looking at the same fifty-dollar call may disagree about whether $2.30 is cheap or expensive; the trader who is consistently more right about IV is the one who makes money over time. After the underlying's own movement, IV is the second-largest driver of option prices, which is why timing the IV cycle — buying when IV is depressed, selling when it is elevated — is a discipline in its own right.
For range-bound, vega-short trades like iron condors, traders often look for IV in the upper half of its twelve-month range and bet on mean-reversion downward. For directional speculation, IV is the cost of the bet — overpaying for IV is the same as overpaying for any other input.
Thesis first, strategy second
Royal's organizing principle is a sequence: understand the company, form a view on the stock, then pick the options strategy that profits if that view is right. A useful thesis answers where the stock will go and how fast — direction alone is not enough, because every option has a deadline. A correct directional call that takes eighteen months to play out is a losing trade on a sixty-day contract.
Once a thesis exists, the options chain becomes a menu of trade-offs. A modest upside view may favor a short put (collect premium, get assigned at a discount) over a long call (need a bigger move to break even). A high-conviction explosive upside view favors the long call. A "stock will stay in a range" view points to spreads or iron condors. Skipping the thesis step and picking a strategy because "it looked fun on social media" is how most retail traders lose money.
The four practical uses
Sincere groups every retail use of options under four headings that map directly to risk tolerance:
- Income — sell calls against stock you already own (a covered call). The premium is yours to keep no matter what happens next. This is the Level 1 entry point.
- Protection — buy a protective put on a stock you hold to cap downside. Like homeowner's insurance, you pay a premium and hope you never need it.
- Hedging — buy puts on a broad index (SPY, QQQ) so that a market-wide decline gains value in the hedge while your portfolio falls. Useful for retirement accounts that cannot short.
- Speculation — buy a call (or put) to participate in a predicted move without owning the underlying. Maximum loss is the premium; the upside is leveraged.
The first three reduce or transfer risk. Only the fourth resembles the gambling reputation that surrounds options, and even there the loss is capped at premium paid. Most retail traders should spend their first year inside the first two.
Spreads: trading only the slice of risk you want
A spread is two or more legs on the same underlying paired so that one option partially hedges another. The cost: you give up the unlimited upside of a single long option. The benefit: both maximum gain and maximum loss are bounded — defined risk. The phrase Royal uses repeatedly is that spreads let you "buy only the part of the risk you actually want."
Spreads come in three families along three axes. Vertical spreads keep expiration constant and vary the strike — they bet on direction. Horizontal (calendar) spreads keep the strike constant and vary the expiration — they bet on time decay and volatility shifts. Diagonal spreads vary both. The vertical family alone produces four workhorse trades: the bull call spread and bear put spread (debit, directional), and the bear call spread and bull put spread (credit, directional). Multi-leg structures stack verticals into tents and plateaus — butterflies peak at a single strike, condors stretch the peak into a flat zone, and the iron condor (short OTM call spread plus short OTM put spread at the same expiration) is the canonical thirty-to-forty-five-day income trade for traders who think a stock will trade in a range.
Mechanics: account approval, contracts, and exercise
You cannot trade options by checking a box on an existing brokerage account. Brokers run an approval process — an options agreement that asks about your investment experience, financial resources, and knowledge — and assign a level from one to four. Level 1 typically allows covered calls; Level 2 adds long calls and puts; higher levels unlock spreads, naked puts, and eventually naked calls. The tiers exist specifically to keep you out of strategies whose risks you may not fully understand. Inflating your experience to grab a higher tier is the canonical beginner mistake.
When you enter an order, the multiplier is always 100: a quote of $2.30 means $230 cash per contract. Most options listed on US equities are American-style and can be exercised any day before expiration; index options are often European-style and exercise only at expiration. Spreads should always be submitted as a single combination order with a net debit or credit limit price — "legging in" one side at a time risks the market moving between fills and leaving you with unintended unhedged exposure. And short legs that finish deep in-the-money near a dividend ex-date can be exercised early against you, converting a defined-risk spread into a hybrid position you must close.
Active management — options punish inattention
Stocks tolerate inattention; options punish it. Theta accrues every day, weekends included, and an unmonitored losing position can ride straight into worthless expiration. The discipline being taught in Royal's troubleshooting topic is active management: every open position gets a daily decision — hold, close, roll, or adjust — based on the current Greeks and the current thesis, not on the price you originally paid. Holding a losing trade to "get back to even" is the canonical retail mistake; the position does not know what you paid.
The corollary is position sizing. Three back-to-back max-loss trades at ten percent of capital each leave you with seventy-three percent of starting capital — survivable. The same three losses at twenty-five percent per trade leave you with forty-two percent — an account-ending streak. Resilience, not prediction, is what separates the traders who survive from those who don't.