Single-Leg Flow
Multi-Leg (Spreads & Combos)
Total Flow Today
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Bullish Flow
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Bearish Flow
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Sweeps Today
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Cross-exchange
Whale Alerts
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$1M+ single orders
PDB Flow Intelligence
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How PDB classifies flow:
Sweep — filled across multiple exchanges at once; aggressive.
Whale — a single alert with $500K+ total premium.
0-DTE — expires the same trading day.
Sentiment (bullish/bearish) is inferred from call-vs-put side and whether ask-side or bid-side premium dominates — it's a read on aggression, not a guaranteed direction.
Sweep — filled across multiple exchanges at once; aggressive.
Whale — a single alert with $500K+ total premium.
0-DTE — expires the same trading day.
Sentiment (bullish/bearish) is inferred from call-vs-put side and whether ask-side or bid-side premium dominates — it's a read on aggression, not a guaranteed direction.
Not enough flow data to determine a meaningful bias yet.
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Ticker Lookup
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Dealer gamma positioning shows where price may pin (positive gamma) or accelerate (negative gamma).
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Options Scanner
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| Ticker | Setup | Price | IV Rank | IV% | Vol / OI | Put/Call | Max Pain | Signal | Exp Play |
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Type a ticker below to pull a live quote, load its option chain, and start building — or click any contract in the chain once it's loaded.
Market Put/Call Ratio
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Scanned Universe P/C
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VIX & Fear Gauge
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VIX Term Structure
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Put/Call Ratio by Ticker
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| Ticker | Company | Call Vol | Put Vol | P/C Ratio | OI Calls | OI Puts | Signal |
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Options Academy — Greeks, Strategies, IV Crush, Flow Mastery
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The Greeks — What Every Options Trader Must Know
Δ
Delta
How much the option price moves per $1 move in the stock. Calls have positive delta (0 to 1), puts have negative delta (-1 to 0).
Delta 0.50 = option moves $0.50 per $1 stock move
Γ
Gamma
Rate of change of delta. High gamma near expiration means delta changes rapidly — options become more sensitive to price moves.
High gamma = explosive 0-DTE moves
Θ
Theta
Time decay — how much value the option loses each day as it approaches expiration. Buyers pay theta, sellers collect it.
Theta -0.05 = lose $5/day per contract
V
Vega
Sensitivity to implied volatility changes. When IV expands options gain value, when IV contracts (IV crush) options lose value fast.
Vega 0.10 = gains $10 per 1% IV increase
ρ
Rho
Sensitivity to interest rate changes. Least important for short-dated options but matters for LEAPS and long-dated positions.
Low importance for most retail trades
Key Terms & Metrics — Scanner, GEX & Flow
IV Rank
Where current implied volatility sits vs its own 52-week range, as a percentile. IVR >75 flags "High IV Rank" on the Scanner tab — options are relatively expensive right now; low IVR means relatively cheap.
Implied Volatility (IV)
The market's forecast of how much a stock will move, baked into the option's price. Higher IV = pricier options. IV Rank tells you if today's IV is high or low for that ticker — raw IV alone doesn't.
Open Interest (OI)
Total option contracts at a strike still open — not yet closed or expired. Heavy OI at a strike often acts like a magnet or support/resistance level for the stock into expiration.
Vol / OI Ratio
Today's volume divided by existing open interest. Above 1x means more contracts traded today than are currently open — a sign of fresh positioning, not just existing hedges rolling.
Put/Call Ratio (P/C)
Put volume divided by call volume. Above 1.0 = put-heavy (bearish/hedging lean); below 0.5 = call-heavy (bullish lean). Extreme readings either way are also watched as contrarian sentiment.
Max Pain
The strike where the largest dollar value of options (calls + puts) would expire worthless — theoretically where option sellers lose the least. Price doesn't always land there, but it's a widely watched pin level into expiration.
GEX (Gamma Exposure)
Estimates how much stock market makers must buy/sell to stay hedged as price moves. Positive GEX = dealers buy dips/sell rips (dampens moves, "pinning"). Negative GEX = dealers amplify moves both ways (volatile).
Gamma Flip
The price where net GEX crosses from positive to negative (or back). Above it, dealer hedging tends to suppress volatility; below it, hedging tends to accelerate moves — watch price relative to this level.
Call Wall / Put Wall
The strike with the largest positive (call wall) or negative (put wall) gamma concentration. These often act as magnets or ceilings/floors — heavy call gamma above price can cap rallies, heavy put gamma below can cushion selloffs.
Setup Tag (Scanner)
Auto-classification per ticker: "High IV Rank" (IVR >75), "Call Heavy" (P/C <0.5), "Put Heavy" (P/C >1.3), or "Balanced Flow" otherwise. A starting filter, not a trade signal by itself.
Whale Alert
Flow tab flags any single alert with $500K+ total premium as a "Whale" — large enough that it's unlikely to be a small retail order, though it could still be a hedge rather than a directional bet.
Unusual / OTM Spike
Flags volume or premium in out-of-the-money contracts that's abnormally high for that ticker's normal activity — often the first sign of a large trader positioning ahead of a catalyst before it's public.
DTE (Days to Expiration)
Calendar days remaining until the option expires. Lower DTE means faster time decay (theta) and higher gamma — price sensitivity rises sharply near expiration, which is why 0-DTE trades move so violently.
Strategy Library
Long Call
Buy a call when you expect the stock to move significantly higher. Limited risk to the premium paid, unlimited upside. Best used when IV is low and you have a specific catalyst.
Beginner
Long Put
Buy a put to profit from a stock decline or to hedge a long position. Risk limited to premium, profit increases as stock falls. Great for earnings fades and sector weakness.
Beginner
Covered Call
Sell a call against 100 shares you own. Generates income but caps upside. Best on flat to mildly bullish positions where you own the underlying and want yield.
Beginner
Cash Secured Put
Sell a put and set aside cash to buy shares if assigned. Collect premium or acquire shares at a discount. Ideal for stocks you want to own at a lower price.
Beginner
Bull Call Spread
Buy a lower strike call, sell a higher strike call. Reduces cost vs long call but caps max profit. Best when you're moderately bullish and want to reduce theta decay.
Intermediate
Bear Put Spread
Buy a higher strike put, sell a lower strike put. Defined risk bearish play with lower cost than a long put. Good for moderate bearish moves with a defined target.
Intermediate
Straddle
Buy both a call and put at the same strike and expiration. Profits on a big move in either direction. Best before major catalysts when you expect volatility but not direction.
Intermediate
Iron Condor
Sell a call spread and put spread simultaneously. Profit when stock stays within a range. Best in low IV environments on stocks that have settled after a big move.
Advanced
0-DTE Strategy
Trade options expiring same day. Extremely high gamma — small moves create large % swings. High risk, high reward. Requires precise entry, fast exits, and strict size discipline.
Advanced
IV Crush — The Hidden Options Killer
Must Read
IV Crush happens when implied volatility collapses after a known event like earnings. The option price is inflated before the event to reflect uncertainty — then when the event passes, IV drops dramatically regardless of which direction the stock moved.
Example: NVDA reports earnings. You buy a call the day before. NVDA gaps up 5%. But IV drops from 80% to 30%. Your call loses value despite being right on direction. This is IV crush.
Example: NVDA reports earnings. You buy a call the day before. NVDA gaps up 5%. But IV drops from 80% to 30%. Your call loses value despite being right on direction. This is IV crush.
How to avoid it
Buy options before IV ramps up, not the day before earnings
Use spreads instead of naked longs to reduce vega exposure
Sell premium INTO high IV events — be the house not the gambler
Check IV rank before buying — if IV rank is >50% IV is expensive
Reading Options Flow — Sweeps vs Blocks vs Splits
Flow Mastery🔥 Sweep
Order filled across multiple exchanges simultaneously at the ask — buyer is aggressive and doesn't care about price. Most bullish signal in options flow. They want in NOW.
🐋 Block
Large single order, often $1M+, negotiated directly with a market maker. Could be a hedge or directional bet. Context matters — check if it's a call or put and on vs off exchange.
📦 Split
Same order broken into multiple smaller fills over time. Less aggressive than a sweep — buyer is being patient about price. Still meaningful size but not as urgent as a sweep.