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Options Trading Glossary

This glossary defines 62 options and options-flow terms in plain English, from the basics (calls, puts, strike, expiration) to the Greeks, volatility measures such as IV rank, dealer positioning such as gamma exposure (GEX) and the gamma flip, and flow signals such as sweeps and dark pool prints. Each term has its own link, and where TraderMatrix has a full guide the entry points to it.

A

Action ZoneVolatility & Risk: The price band within about 1 ATR of the 21-day EMA — close enough to the trend's average that a pullback is still considered healthy, not a breakdown.; Why traders care: A stock trading in its Action Zone, with the trend still intact, is the pullback entry this method looks for. Further than about 3 ATR from the EMA is stretched (parabolic) territory instead.
After Market CloseMarket Sentiment: An earnings report or news release published after the regular trading session ends at 4:00 PM ET.; Why traders care: AMC reports drive after-hours moves that can gap the stock at the next open. The initial reaction in extended hours is often exaggerated and partially reverses.
At-the-Money (ATM)Options Basics: When the option's strike price equals (or is very close to) the current stock price.; Why traders care: ATM options have the highest time value and are often the most liquid. They carry roughly 50-delta — meaning about a 50% chance of expiring in-the-money.
Average Underlying MoveFlow & Conviction: The average percentage change in the stock price in the same direction as the flow's sentiment after the specified number of days.; Why traders care: Use this alongside hit rate: a high hit rate with a small avg move may not overcome commissions, while a moderate hit rate with a large avg move can still be profitable.

B

Block TradeFlow & Conviction: A single large trade negotiated privately and printed at once — classic institutional footprint.; Why traders care: Blocks are often hedged or part of a bigger strategy, so read them alongside the rest of the day's flow rather than in isolation.
Before Market OpenMarket Sentiment: An earnings report or news release published before the regular trading session starts at 9:30 AM ET.; Why traders care: BMO reports set the tone for the open. Pre-market gaps from BMO releases often see early volatility before settling into a trend.
Market BreadthMarket Sentiment: Whether the broad market (equal-weight S&P 500) is confirming the cap-weighted SPY, or a handful of mega-caps are propping up the index while most stocks lag.; Why traders care: Weak breadth under a rising SPY is a classic late-cycle warning — the rally is narrower than it looks.

C

Call OptionOptions Basics: A contract giving the buyer the right to purchase 100 shares at the strike price before expiration. Calls profit when the stock rises.; Why traders care: Buying a call is a bullish bet. A call bought above the current price (OTM) needs the stock to rally past the strike by expiration to profit.
Call WallVolatility & Risk: A strike where dealers hold large positive gamma from sold calls. Price tends to stall or reverse near this level as dealers sell into rallies to stay hedged.; Why traders care: The call wall acts as a near-term ceiling. If price breaks cleanly above it with volume, dealers must buy to re-hedge and can accelerate the move.
Composite ScoreFlow & Conviction: How many of the 9 technical reversal indicators are firing for a ticker at once. A score of +9/9 means all 9 are aligned in the same direction.; Why traders care: Higher scores (7/9 or above) mean multiple independent signals agree, which reduces false positives. Combine with GEX for additional confirmation before entering a trade.
ConfluenceMarket Sentiment: Multiple independent signals pointing in the same direction at the same time. Confluence increases conviction because the signals are measuring different things and still agree.; Why traders care: A trade with price at a GEX call wall, bearish flow printed that morning, and a deteriorating market health score has three independent signals agreeing. Each one alone is noise; all three together are a higher-probability setup.
Consensus ConfidenceFlow & Conviction: The percentage of flows pointing in the same direction for a given ticker or event. 100% means every detected flow agreed on direction; below 50% means flows were split.; Why traders care: Higher conviction means institutional traders are not hedging each other out. Below 50% is a red flag that the flow may be noise rather than a directional bet.
Covered CallStrategies: Selling a call against stock you already own to collect premium, capping your upside in exchange for income.; Why traders care: The second half of 'the wheel' — once a CSP assigns you shares, you sell calls against them.; Read more →
Credit SpreadsMarket Sentiment: The yield gap between high-yield ('junk') bond ETFs like HYG/JNK and safer benchmarks. Widening spreads mean bond investors are demanding more compensation for risk — often stress that shows up in bonds before stocks.; Why traders care: Credit stress tends to lead equity stress. A flagged reading here is worth more weight than a single red day in stocks alone.
Cash-Secured PutStrategies: Selling a put while holding enough cash to buy the stock if assigned. You collect premium and may get the stock at a discount.; Why traders care: The income half of 'the wheel'. You get paid to wait for a price you'd be happy to buy at.; Read more →

D

Dark PoolFlow & Conviction: Private exchanges where large institutional trades are executed away from public markets, often to avoid moving the price. Dark pool prints can signal large accumulation or distribution.; Why traders care: A dark pool print is a clue that a large player moved size quietly. When it appears alongside unusual options flow in the same ticker, the convergence is worth noting.; Read more →
Dealer GammaMarket Sentiment: Whether options dealers are net long or short gamma against the market. Short gamma forces dealers to buy into rallies and sell into selloffs, amplifying moves. Long gamma means they do the opposite, damping moves.; Why traders care: SHORT · ACCELERATING is the riskiest state — expect bigger, faster swings in both directions. LONG · DAMPING usually means calmer, more range-bound trading.
Deep In-the-MoneyOptions Basics: An option so far in-the-money its price moves almost 1:1 with the stock (delta near ±1). Most of what you're paying is intrinsic value, not a bet on direction.; Why traders care: A big deep-ITM print is often stock replacement, a hedge, or one leg of a collar — not the same signal as a leveraged OTM sweep. Check the strike against the current price before reading size alone as conviction.
DeltaStrategies: How much an option's price changes for every $1 move in the underlying stock. A delta of 0.50 means the option gains $0.50 when the stock rises $1. Also approximates the probability of expiring in-the-money.; Why traders care: Low-delta (OTM) options need big moves; high-delta (ITM) options behave more like stock. Scan for calls with 0.30–0.50 delta if you want a balance of leverage and probability.
Delta Ownership ChangeOptions Basics: The percentage change in shares owned by an insider as a result of their reported trade. A large change means the transaction was significant relative to their existing stake.; Why traders care: A small dollar trade by an executive with a tiny ownership change is routine. A large ownership increase, especially at a higher share price, signals real conviction.
DivergenceFlow & Conviction: A condition where different signals or participants disagree in direction. In ETF tracking, it means at least one provider is buying a ticker while another is selling it.; Why traders care: Divergences often resolve in the direction of the larger buyer. Watch for a follow-on print that breaks the tie.
Days to ExpirationOptions Basics: How many calendar days until the option expires.; Why traders care: Low DTE (days) means a fast, urgent bet — time decay is brutal, so someone buying it expects a move *soon*. High DTE means patience.; Read more →

E

Expected MoveVolatility & Risk: The range the options market is pricing in for a stock by a given date — often used around earnings.; Why traders care: If a stock moves less than its expected move, premium sellers usually win; more, and buyers win. Great for sizing an earnings play.
Expiration DateOptions Basics: The date the option contract expires and stops trading.; Why traders care: Near-dated expiries are short-term, higher-conviction bets; far-dated ones are slower, longer-horizon positions.
Extrinsic ValueOptions Basics: The portion of an option's premium beyond its intrinsic value — what you pay for time and implied volatility. This is what theta erodes each day.; Why traders care: Sellers collect extrinsic value and want it to decay to zero by expiration. Buyers need the underlying to move enough to offset the extrinsic they paid.

F

Fear & Greed IndexMarket Sentiment: CNN's 0-100 gauge of overall market mood, from Extreme Fear (0) to Extreme Greed (100).; Why traders care: A quick top-down read. Compare it to our flow-derived sentiment — when they disagree (e.g. greedy tape but bearish flow), that divergence is itself a signal.

G

GammaStrategies: The rate at which delta changes as the stock price moves. High gamma means delta changes rapidly, making the option more sensitive as it nears expiration.; Why traders care: Near-expiry ATM options have the highest gamma — small price moves create large delta swings. Gamma risk is why holding short options through earnings or into expiration is dangerous.
Gamma Flip LevelVolatility & Risk: The price level where dealer gamma exposure crosses from positive to negative. Below this level dealers amplify price moves; above it they tend to dampen them.; Why traders care: Price trading below the gamma flip means the tape can move faster and further in both directions. Above the flip, dealers act as a dampener and ranges tend to compress.; Read more →
Gamma ExposureVolatility & Risk: How much dealers must buy or sell to stay hedged as price moves. It measures volatility pressure, not direction.; Why traders care: Positive GEX tends to pin price and dampen moves; negative GEX can accelerate them. The 'gamma flip' level is where that behavior switches.
Golden SweepFlow & Conviction: Our highest-tier sweep — a large, aggressive, multi-exchange order that clears our strictest size and urgency bar.; Why traders care: These are the rarest, highest-conviction prints on the tape. Worth a closer look when one fires on a ticker you follow.; Read more →

H

Hit RateFlow & Conviction: The percentage of historical unusual-activity signals where the underlying stock moved in the same direction as the flow's sentiment by the end of the measured window.; Why traders care: A hit rate above 55% over a large sample means the signal type is doing better than a coin flip. Compare hit rates across score tiers to see where the edge is strongest.

I

Intrinsic ValueOptions Basics: The 'real' value of an option — how far it is in-the-money. A $200 call on a $210 stock has $10 of intrinsic value.; Why traders care: Intrinsic value cannot go negative. An OTM option has zero intrinsic value, meaning its entire price is extrinsic (time + volatility premium).
Invalidation LineVolatility & Risk: The price where your trade idea is proven wrong — if it trades or closes through this level, the setup has failed and the reason you entered no longer holds.; Why traders care: Decide your invalidation before you enter, then size the trade so being wrong there is a loss you can take. It's your pre-planned exit, not a suggestion — most blown accounts come from moving the line instead of honoring it.
In-the-Money (ITM)Options Basics: A call is ITM when the stock price is above the strike. A put is ITM when the stock price is below the strike. ITM options have intrinsic value.; Why traders care: ITM options behave more like the underlying stock (high delta). They're more expensive but less likely to expire worthless.
Implied VolatilityVolatility & Risk: The market's expectation of how much a stock will move, baked into the option's price.; Why traders care: High IV = expensive options (big move expected, e.g. before earnings). Low IV = cheap options. IV usually crashes right after earnings ('IV crush').; Read more →
IV RankVolatility & Risk: Compares current implied volatility to the stock's 52-week IV range. An IV Rank of 80 means current IV is in the 80th percentile of its yearly range — historically expensive.; Why traders care: High IV Rank (above 50) favors selling premium (CSP, covered calls); low IV Rank favors buying options before a catalyst. Use it alongside the flow feed to confirm whether the market is pricing a move.

L

Long Gamma (Market Environment)Volatility & Risk: A market-wide state where dealers are net positive gamma, meaning they buy dips and sell rallies to stay hedged. That hedging works against big moves, so price tends to chop in a range instead of trending.; Why traders care: In a Long Gamma tape, pullbacks are more likely to get bought back rather than snowball into a trend. It favors range-bound and premium-selling approaches over chasing breakouts.

M

Moneyness (ITM / ATM / OTM)Volatility & Risk: Where the strike sits vs the stock price: In-, At-, or Out-of-the-Money.; Why traders care: OTM bets are cheaper, higher-risk, higher-reward 'lottery' positioning; ITM bets are more like a leveraged stock position.

O

Open InterestOptions Basics: The number of contracts currently held open on this strike (not yet closed or expired).; Why traders care: Volume far above OI = fresh conviction. Volume below OI = likely position-closing. We flag the ratio so you can tell new bets from exits.
Out-of-the-Money (OTM)Options Basics: A call is OTM when the strike is above the current price. A put is OTM when the strike is below the current price. OTM options have no intrinsic value — only time value.; Why traders care: OTM options are cheaper but need a larger move to become profitable. High-premium OTM sweeps in the flow feed often signal directional conviction.

P

PremiumOptions Basics: The total dollars spent on an options trade — contracts x price x 100. It's the size of the bet.; Why traders care: Bigger premium = more conviction (and usually 'smarter' money). We surface trades with large premium because they're the ones institutions actually care about.; Read more →
Put OptionOptions Basics: A contract giving the buyer the right to sell 100 shares at the strike price before expiration. Puts profit when the stock falls.; Why traders care: Buying a put is a bearish bet. A put bought below the current price (OTM) profits when the stock drops below the strike.
Put WallVolatility & Risk: A strike where dealers hold large put gamma, acting as a price floor. Dealers buy the underlying when price drops here, which tends to slow the decline.; Why traders care: The put wall is a natural support level driven by dealer mechanics. A break below it removes that buying support and can accelerate selling.
Put/Call RatioMarket Sentiment: Total put volume divided by call volume. Above 1 leans bearish/hedging; well below 1 leans bullish.; Why traders care: Extreme readings are often contrarian — everyone hedged (very high) or everyone greedy (very low) can mark turning points.

Q

Quality ScoreStrategies: A 0-100 composite rating blending profitability, revenue growth, valuation, and dividend safety. Higher scores indicate stronger fundamental characteristics.; Why traders care: Use quality score to filter out weak names before selling premium or buying LEAPS. A score above 70 means the fundamentals support the stock holding up even if the trade goes against you.; Read more →

R

Repeat-Flow ConvictionFlow & Conviction: The same strike getting hit multiple times within about an hour — someone is accumulating one contract on purpose.; Why traders care: Repeated buying on a single strike is one of the strongest 'this is real conviction, not noise' signals. EXTREME = 3+ hits, HIGH = 2.; Read more →
RhoStrategies: How much an option's price changes with a 1% change in interest rates.; Why traders care: Rho matters most for LEAPS — longer dated options are more sensitive to rate changes. For short-term options (under 60 DTE), rho is rarely the deciding factor.
Return on Capital (ROC)Strategies: For put selling (CSP/Wheel strategy): the premium collected divided by the capital at risk (strike × 100). A 1% weekly ROC means $1 earned per $100 of collateral held.; Why traders care: Use ROC to compare CSP candidates fairly — a $5 premium on a $500-strike put is 1% ROC, same as a $1 premium on a $100-strike put. Our CSP screener ranks by annualized ROC.; Read more →
Relative VolumeVolatility & Risk: Today's volume as a multiple of the average volume for that ticker. 2.0x means twice the normal daily activity. On premarket screens it means the same thing measured early: premarket volume as a fraction of a normal FULL day, so 0.25x already means a quarter of a whole day has traded before the open.; Why traders care: High RVOL alongside unusual flow confirms institutional participation. Low RVOL on a signal means fewer participants are backing the move.

S

Unusual ScoreFlow & Conviction: Our 0-100+ rating of how unusual a trade is — blending size, volume-vs-open-interest, urgency, and other signals.; Why traders care: Higher score = more statistically abnormal (and more interesting). The tiers — Unusual, High Conviction, Institutional, Extreme — group scores into plain labels.
Sentiment (Bullish / Bearish / Neutral)Flow & Conviction: Which direction a trade is betting. Bought calls / sold puts lean bullish; bought puts / sold calls lean bearish.; Why traders care: We weight overall sentiment by premium, so a few huge bullish bets outweigh many tiny bearish ones. Closing/hedging prints are treated as neutral.
Signal Window (Earnings)Flow & Conviction: How many days before an earnings report a flow was captured. EARLY = more than 14 days out. THESIS = 7-14 days out. LATE = 3-7 days out. IMMINENT = 3 days or fewer.; Why traders care: Earlier windows give more time for a position to build, but the thesis can change before the report. IMMINENT flows carry the most urgency and the highest risk around the binary event.
Split TradeFlow & Conviction: A larger order broken into smaller pieces, often to reduce market impact.
Stacked PremiumFlow & Conviction: The total dollar premium spent across all repeat flow hits on this contract within the lookback window. More stacked premium means larger cumulative bets on the same strike.; Why traders care: High stacked premium means institutional traders kept returning to the same bet. It separates real accumulation from a single lucky print.
Strike PriceOptions Basics: The price at which an option lets you buy (call) or sell (put) the stock.; Why traders care: Compare the strike to the current price: a call far above the stock is a bet it'll rally hard; a put far below is a bet it'll fall hard.
SweepFlow & Conviction: An order split across multiple exchanges and filled instantly — the buyer wanted in NOW and paid up to get filled.; Why traders care: Sweeps signal urgency. Someone willing to chase the price across exchanges usually has a strong, time-sensitive view.

T

The Wheel StrategyStrategies: A repeating income strategy: sell cash-secured puts until assigned shares, then sell covered calls until they're called away — and repeat.; Why traders care: Our Wheel Tracker manages this lifecycle for you and tallies the premium collected on each leg.; Read more →
Theta (Time Decay)Strategies: How much value an option loses each day just from time passing.; Why traders care: Theta works against option buyers and for sellers — it's why short-DTE long options need the move to happen quickly.

V

VegaStrategies: How much an option's price changes with a 1% change in implied volatility. Long options profit when IV rises; short options profit when IV falls.; Why traders care: High-vega options are expensive when IV is elevated and cheap when IV is low. Selling options into high IV (earning the vega premium) is the core idea behind the wheel and premium-selling strategies.
Volatility StructureMarket Sentiment: Compares the VIX against the S&P 500 itself to catch divergences — implied volatility rising even while the index holds steady, a classic early-warning sign.; Why traders care: A WATCH or ALERT here means options traders are quietly pricing in more risk than the price action shows yet. Worth noticing before it shows up in price.
VolumeOptions Basics: How many contracts traded today on this option.; Why traders care: When today's volume dwarfs the existing open interest, it usually means brand-new positioning — not someone just closing an old trade.
Volume-over-Premium RankVolatility & Risk: A scanner score that ranks how much activity a name is seeing relative to its premium — surfacing overlooked, active tickers.