We've shipped a new Gamma Exposure (GEX) Screener in TradingFlow. It's a snapshot-based discovery app that answers: which symbols have the most meaningful gamma structure in the latest available option chain? You get market-wide ranking, regime context, and per-symbol key levels from one screen.

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What the GEX Screener does

The app uses T+1 snapshot data: option open interest and gamma from the prior close. Rankings and metrics are labeled so it's clear you're looking at snapshot-era data, not live intraday.

• Rank symbols by gross GEX, net GEX, or distance to the gamma flip.
• See regime at a glance via KPI cards and table badges (Positive, Negative, Near Flip).
• Inspect any symbol in a drawer with call wall, put wall, flip line, and a strike-level GEX ladder.
• Filter and search the table and switch ranking modes without losing context.

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KPI cards: market-wide context

At the top of the screen you'll see five cards:

1. Positive Regime — Count (and share) of symbols where dealer net gamma is positive. Dealers are long gamma; hedging tends to dampen volatility.
2. Negative Regime — Symbols where dealers are net short gamma. Hedging flows can amplify moves.
3. Near Flip — Symbols within the flip band (net GEX near zero). Regime is unstable; small OI or price changes can flip the sign.
4. Total Gross GEX — Sum of gross gamma exposure across the universe (size of the gamma market).
5. Flip Distance — How far the market's representative spot is from the zero-gamma level (when available).

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Ranking modes

Secondary sort is always by symbol so ordering is stable.

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Ranking chart and table

• Ranking chart — Bar chart of top symbols by the active ranking metric. Lets you scan leaders without scrolling the table.
• Data table — Sortable columns: symbol, net GEX, gross GEX, flip distance, regime badge, and more. Toolbar supports symbol search and filters. Pagination and preview mode (limited rows for fast loads) are available.

Clicking a row opens the symbol inspection drawer for that symbol.

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Symbol drawer: call wall, put wall, flip line

When you open a symbol (from the table or via a direct link), the drawer shows:

• Regime — Positive, Negative, or Near Flip, with a short explanation.
• Call wall — Strike with the largest call-side GEX.
• Put wall — Strike with the largest put-side GEX.
• Flip line (zero-gamma level) — Price level where cumulative signed gamma crosses zero. Spot above = positive gamma territory; spot below = negative. Distance-to-flip and direction (above/below) are shown.
• Strike ladder — Chart of call GEX, put GEX, and net GEX by strike so you can see where gamma is concentrated.

The drawer includes a short "how to read" guide (expandable) so new users can interpret the chart and levels.

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Data caveats and preview mode

• Snapshot honesty — Every view shows that OI and gamma are from the prior close snapshot (T+1). No "live" GEX unless we add a separate overlay later.
• Preview mode — For faster loading, you can limit the table to a subset of rows; full universe is available when you need it.

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Where to find it

In TradingFlow, open Data Analysis → Gamma Exposure Screener or go directly to /app/gamma-exposure-screener. Use the KPIs and ranking modes to find interesting names, then open the drawer to inspect call wall, put wall, and flip line before diving into Option Trades or other tools for full chain analysis.

TradingFlow 推出了新的 Gamma 敞口（GEX）筛选器。这是一款基于快照的发现应用，回答的是：最新可用期权链中哪些标的具有最显著的 Gamma 结构？ 您可以在一个界面中获得全市场排名、市场状态背景以及每个标的的关键价位。

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GEX 筛选器的功能

该应用使用 T+1 快照数据：来自前一收盘的期权未平仓合约和 Gamma。排名和指标均有标注，清楚说明您查看的是快照时期的数据，而非盘中实时数据。

• 按总 GEX、净 GEX 或距 Gamma 翻转点的距离对标的排名。
• 通过 KPI 卡片和表格标签（正值、负值、接近翻转）一览市场状态。
• 在抽屉中检查任意标的的看涨墙、看跌墙、翻转线和逐行权价 GEX 阶梯。
• 在不丢失上下文的情况下筛选和搜索表格并切换排名模式。

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KPI 卡片：全市场背景

屏幕顶部您将看到五张卡片：

1. 正值区间 — 做市商净 Gamma 为正的标的数量（及占比）。做市商持有长 Gamma；对冲往往抑制波动。
2. 负值区间 — 做市商净 Gamma 为负的标的。对冲流量可能放大行情。
3. 接近翻转 — 处于翻转带内的标的（净 GEX 接近零）。区间不稳定；微小的未平仓合约或价格变化可能导致符号翻转。
4. 总 Gross GEX — 全市场 Gamma 敞口总和（Gamma 市场规模）。
5. 翻转距离 — 市场代表性现货价格距零 Gamma 水平的距离（如有）。

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排名模式

次级排序始终按标的代码，以保证排序稳定。

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排名图表与数据表

• 排名图表 — 按当前排名指标显示顶部标的的柱状图，无需滚动表格即可扫描领跑者。
• 数据表 — 可排序列：标的、净 GEX、总 GEX、翻转距离、市场状态标签等。工具栏支持标的搜索和筛选。支持分页和预览模式（限制行数以加快加载速度）。

点击某行打开该标的的标的检查抽屉。

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标的抽屉：看涨墙、看跌墙、翻转线

打开某个标的（从表格或直接链接）时，抽屉将显示：

• 市场状态 — 正值、负值或接近翻转，附简短说明。
• 看涨墙 — 看涨侧 GEX 最大的行权价。
• 看跌墙 — 看跌侧 GEX 最大的行权价。
• 翻转线（零 Gamma 水平） — 累计有符号 Gamma 穿越零点的价格水平。现货高于该水平 = 正 Gamma 区域；低于 = 负 Gamma 区域。显示距翻转的距离和方向（上方/下方）。
• 行权价阶梯 — 按行权价显示看涨 GEX、看跌 GEX 和净 GEX 的图表，以便查看 Gamma 集中在哪里。

抽屉包含简短的"如何阅读"指南（可展开），供新用户解读图表和价位。

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数据说明与预览模式

• 快照真实性 — 每个视图均显示 OI 和 Gamma 来自前一收盘快照（T+1）。除非后续添加单独的叠加层，否则不提供"实时" GEX。
• 预览模式 — 为加快加载速度，可将表格限制在部分行；需要时可切换到完整数据集。

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在哪里找到它

在 TradingFlow 中，打开数据分析 → Gamma 敞口筛选器，或直接访问 /app/gamma-exposure-screener。使用 KPI 和排名模式找到感兴趣的标的，然后打开抽屉检查看涨墙、看跌墙和翻转线，再深入使用期权交易或其他工具进行完整的期权链分析。