🏢 Sectors — each group read against itself

Sectors groups the library (Semis, Banks, Energy, Index/Rates, Leveraged…) and shows, for any reading you pick, how unusual each sector is being as a group today, which members drive it, and when its members report earnings.

💡 The one column to compare: median own % Every member's reading becomes a percentile against its own history (0–100) and the sector's median is taken. That works across sectors: "Energy is at its 85th percentile of IV/RV" can be compared with "Banks at its 30th", even though the raw values are completely different.

New words? Glossary. The ticker box in the top strip loads a ticker's price and puts it beside the sector charts.

The reading Sector table Medians over time A sector's members The map Routine

The reading picker and the info line

reading is the metric to compare (IV/RV, IV30, dealer gamma, skew, put share, turnover…). The info line shows how many groups and core names there are, the session date, how many have a report date, and how many have an industry.

The sector table

Column	How to read it
sector	Greyed "(too thin)" if it has fewer than 2 core members — one stock is not a sector move.
members	Core stocks in the sector.
median value	The typical member's raw reading. Do not compare this across sectors.
median own %	How unusual the group is being for itself.
vs market	The gap between the sector's median own % and the market's, in points. +15 or more = stands out high · −15 or less = low.
reporting ≤21d	Members reporting within 3 weeks / members with a date. Amber when a third or more: the sector's IV is carrying event premium.
members list	The tickers.

median own %	Meaning
80 – 100	The whole group is at an extreme high for itself.
60 – 80	Elevated.
40 – 60	Normal.
20 – 40	Subdued.
0 – 20	The group is at an extreme low for itself.

⚠ Earnings season distorts sector IVIf "reporting ≤21d" is amber, a high IV or IV/RV median is mostly the calendar, not the group. Selling premium across that sector means selling many earnings events at once.

Click a sector row to open its members below.

Sector medians over time

The chosen reading's sector medians over the window. lines: "market + Index/Rates only" (a clean backdrop) or "every sector". Click legend chips to add or remove sectors.

🎓 Pro tipChart IV/RV with every sector on, then hide all but the two highest and the market. A sector whose premium has stayed rich for weeks without an earnings cluster is a steadier premium-selling hunting ground than one that spikes only around reports.

A sector's members

Column	How to read it
name · industry	Ticker, company name and listing industry.
value · own % · market %	The reading; its own-history percentile (sorted, most unusual first); its percentile against all core stocks.
IV/RV	1.2 + amber rich · 0.85 or less green cheap.
dealer γ	+ long (calming) · − short (amplifying).
spot vs flip	+ above the gamma flip · − below.
next report	Date and days away. Amber within 21 days · "stale" = the date passed and was not updated · "— fund" = no earnings.

A sector median mixes industries: "Semis" may be 24 chip makers plus a few other businesses; the note lists the industries inside. A chart under the table draws the first 2 / 5 / all members as price rebased to 100, or as the chosen reading.

🎓 Pro tipInside a sector, the members at the top of the own % list are the ones behaving most unusually for themselves. If the sector is normal but one member is at its 95th percentile, that is a name story — check it on Vs Sector & Market.

The map

A description of every sector group. Index/Rates and Leveraged exist so that index ETFs (QQQ) and leveraged ETFs (LABU) do not distort the real sectors.

A routine that works

Choose a reading (start with IV/RV or IV30).
Scan median own % and vs market: which sectors stand out?
Check reporting ≤21d: is it just earnings season for that group?
Open the sector: who drives it, what is their gamma, when do they report?
Pick members and open them on Vs Sector & Market → Expected-Move Spreads → Trade by Expiry.