# etf-premium

> Calculate an ETF's premium or discount to NAV from Yahoo Finance data (yfinance), compare or screen ETFs by premium, ex…

Calculate an ETF's premium or discount to NAV from Yahoo Finance data (yfinance), compare or screen ETFs by premium, explain why a gap exists, and decompose a sudden ETF move into NAV-driven vs structural components (dealer gamma exposure, blocked AP arbitrage, sentiment). Use this skill whenever the user asks whether an ETF trades above or below NAV, compares ETF premiums or discounts, screens for the biggest ones, asks about ETF arbitrage or premium convergence, or wants to know why an ETF jumped or diverged from its holdings — including gamma squeezes, dealer gamma exposure (GEX), and blocked creation/redemption. Especially relevant for leveraged, inverse, international, bond, commodity, and crypto ETFs (IBIT, BITO, HYG, KWEB).

- Type: Skill
- Made by: himself65
- Category: Finance
- Formats: Skills
- Version: 31d334f
- Source: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium
- Page: https://pluginboard.ai/skills/etf-premium

## Works with

- ChatGPT
- Claude
- Gemini
- GitHub Copilot
- Cursor
- Claude Code
- Codex
- Antigravity
- Gemini CLI
- Replit
- OpenClaw
- OpenCode
- Hermes Agent

## Install

### ChatGPT

In ChatGPT: Download the etf-premium folder and zip it, then Plugins → Skills → Create → Upload from your computer. Business and Enterprise plans.

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Claude

In Claude (web or desktop): Download the etf-premium folder and zip the folder itself, then upload it in Customize → Skills.

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Gemini

In Gemini: Download the etf-premium folder, then at gemini.google.com click Customize → Skills → Create → Upload and pick the folder (or a .zip of it).

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### GitHub Copilot

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.copilot/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Cursor

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.cursor/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Claude Code

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.claude/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

Or all of Finance Market Analysis, in Claude Code:

```text
/plugin marketplace add himself65/finance-skills
/plugin install finance-market-analysis@finance-skills
```

### Codex

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.agents/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Antigravity

In Antigravity: Copy the etf-premium folder into ~/.gemini/config/skills (Antigravity app and IDE) or ~/.gemini/antigravity-cli/skills (Antigravity CLI).

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Gemini CLI

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.gemini/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Replit

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium .agents/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### OpenClaw

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.openclaw/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### OpenCode

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.config/opencode/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

### Hermes Agent

Run in your terminal:

```shell
npx -y degit himself65/finance-skills/plugins/market-analysis/skills/etf-premium ~/.hermes/skills/etf-premium
```

View the folder on GitHub: https://github.com/himself65/finance-skills/tree/HEAD/plugins/market-analysis/skills/etf-premium

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From Pluginboard (https://pluginboard.ai).