ETF price gap calculator
Give it an ETF ticker. Get how far its price sits above or below its holdings, and why. Collects data from websites.
ETF price gap calculator is a free AI skill for the job "Set your prices". Give the instructions to an AI assistant that supports the required files and tools, then review its output.
Free · No account · MIT licence · Made by himself65 · Level: advanced
Made by himself65. See the original on GitHub; we copied it as it is, with its licence.
What it does
The gap between an ETF's market price and the value of the assets it holds, shown as a percent, with a clear reason for why it exists. You see quickly whether you would be overpaying. You give a ticker. The skill pulls price and net asset value data from Yahoo Finance, using a small Python script, and calculates the premium or discount. It can compare several funds, scan a list for the biggest gaps, or dig deeper into why a fund trades away from value. For sudden jumps it splits the move into value-driven and structural parts, such as dealer positioning or blocked arbitrage. It is for research only, not financial advice.
You give it
- One or more ETF tickers
- Python with data packages installed
- Time period to look at (optional)
You get
- Premium or discount percent
- Side-by-side fund comparison
- Ranked list of widest gaps
- Plain reason for the gap
- Breakdown of a sudden move
Use it when
- You want to know if an ETF is trading above or below what it holds.
- You are comparing several bond or crypto funds on price gap.
- A fund jumped hard and you want to know why.
- You want a list of the ETFs with the widest discounts.
How to use it
- Add it to your AI once: download it and add the folder to Claude, ChatGPT or Codex as a skill.
- Ask for the job in your own words. Your AI opens the skill when it fits.
- It works best when your AI can run code.