> ## Documentation Index > Fetch the complete documentation index at: https://docs.gextron.com/llms.txt > Use this file to discover all available pages before exploring further. # Option Flow > Understand unusual options activity and how to read color-coded transactions in Gextron. # πŸ”„ Option Flow Option Flow shows you **large, unusual transactions** in the options market. These flows help you see where aggressive buyers and sellers are positioning, often before the move happens. Gextron’s Unusual Options feed **auto-updates in real time** and is **continuously scanning** for new prints. There’s no need to refresh; new orders stream in as they cross the tape. *** ## What you’ll see in Gextron Unusual option flow When you open the **Unusual Options** feed in Gextron, each row shows: * ⏱ **Time** of execution * πŸ“„ **Contract details** (ticker, strike, expiration) * πŸ“… **Days to expiration (DTE)** * πŸ’° **Premium** of the transaction * πŸ“ˆ **Spot price** of the underlying * βš–οΈ **Moneyness** (ITM, ATM, OTM) * 🧾 **Order type** (Sweep or Block β€” or blank for large single prints) *** ## Sweep vs Block A **sweep** order is broken into smaller pieces and routed across multiple exchanges to **get filled quickly**.\ β€’ Indicates **urgency** β€” trader wants in fast.\ β€’ Seen as **more aggressive** than a block.\ β€’ Often predictive if repeated near key levels. A **block** order is a single large trade, usually negotiated off-exchange between institutions.\ β€’ Less urgency than a sweep.\ β€’ Still important β€” shows **size positioning**, but may be part of a spread.\ β€’ If order type cell is empty in Gextron β†’ it’s just a **large block**. *** ## Color Coding in Gextron Gextron color codes every transaction to make it easy to **see sentiment and aggressiveness**. * **White text** β†’ Neutral sentiment\ β€’ Could be noise or part of a spread.\ β€’ Still useful in sequence context. * **Red text** β†’ Bearish sentiment\ β€’ **Put** bought at the **ask** β†’ bearish bet.\ β€’ **Call** sold at the **bid** β†’ bearish exit. * **Green text** β†’ Bullish sentiment\ β€’ **Call** bought at the **ask** β†’ bullish bet.\ β€’ **Put** sold at the **bid** β†’ bullish exit. * **Red background** β†’ Aggressively bearish\ β€’ **Call** filled **below bid** = trader dumping bullish exposure.\ β€’ **Put** filled **above ask** = trader paying up for bearish exposure. * **Green background** β†’ Aggressively bullish\ β€’ **Call** filled **above ask** = trader paying up for bullish exposure.\ β€’ **Put** filled **below bid** = trader dumping bearish exposure. *** ## Understanding Moneyness **ITM (In the Money)** β†’ Contracts already have intrinsic value. Safer, more expensive.\ **ATM (At the Money)** β†’ Strike price β‰ˆ underlying spot price. Most liquid, balanced risk/reward.\ **OTM (Out of the Money)** β†’ Purely speculative. Cheap, but lower probability unless flow is very aggressive. Moneyness helps you filter **serious institutional bets** (ITM/ATM sweeps at size) vs **lottery tickets** (OTM noise). *** ## Filtering and Lookback Unusual option flow filtering Gextron gives you flexibility to filter **only the flows that matter to you**. You can go back up to the **last 5 previous trading days** of Unusual Option Orders. Only want to see **million-dollar orders**?\ Use the **premium filter operators**: * `>` greater than * `>=` greater than or equal to * `=` equal to * `<` less than * `<=` less than or equal to Example: `>= 1000000` β†’ only shows orders **\$1M or bigger**. Premium filtering lets you quickly isolate **institutional-size trades** and ignore small retail noise. *** ## Why Color + Context Matters * **Green text on calls at the ask** β†’ institutions betting bullish. * **Red text on puts at the ask** β†’ institutions betting bearish. * **White text neutral** β†’ may be spreads β†’ don’t overreact. * **Background colors** show when traders are **paying up or dumping aggressively** beyond normal bid/ask. Never trade **color alone**. Always confirm with **P-Trans / N-Trans levels, MaxReward/MaxPaint, AOIs**, and the Tape. *** ## Example Workflow Note if **sweeps** cluster at levels (above P-Trans or below N-Trans). Focus on contracts with **2–3 weeks** to expiration (not zero-day noise). Example: only show **orders >= \$1,000,000** to focus on real institutional bets. Combine **text + background + sweep/block** to gauge conviction. If Tape shows large prints in the same direction, confidence increases. *** ## What to Read Next Learn to confirm flow signals with live prints. Structure trades around flow with defined exits.