trading-port-summary

A Claude Skill that turns a raw Fidelity Portfolio_Positions CSV export into a clean, shareable one-page portfolio summary — Equity positions, Cash, and Options — as both styled HTML and Markdown.

It aggregates lots across every account, decodes Fidelity's option symbols into readable contracts, and computes each position's share of the portfolio.

What it produces

Three sections, sorted and share-ready (no account numbers, no per-lot noise):

Section	Columns
Equity positions	Ticker · Shares · Market value · % of port
Cash	Money-market cash (all accounts) · Amount · % of port
Options	Contract · Type (Long/Short) · Qty · Note

See examples/ for sample input and output.

Install

Drop the trading-port-summary/ folder into your Claude skills directory (or import the packaged .skill file via the Claude app). Once installed, it triggers on requests like "give me a shareable summary of my holdings" or when you upload a Fidelity positions CSV.

Use directly (without Claude)

The renderer is a plain, dependency-free Python script:

python3 scripts/build_summary.py \
  --csv path/to/Portfolio_Positions_YYYY-MM-DD.csv \
  --outdir ./out \
  --asof 2026-01-15        # optional; defaults to today

Outputs portfolio-summary-<date>.html and .md to --outdir.

How it reads the export

• Equities are aggregated by ticker across all accounts.
• Crypto (e.g. BTC/USD) is listed in the equity section.
• Money-market balances (SPAXX, FDRXX, FCASH) and "Pending activity" roll into a single Cash line.
• Options are detected by Fidelity's leading-dash symbol format (-NBIS260717P200), decoded to NBIS Jul-17-26 200 P, and signed Long/Short by quantity.
• % of port = position market value ÷ total account value (equities + crypto + cash + net option value).
• Column headers are matched case-insensitively. Fidelity's export has varied the capitalization of its headers over time (e.g. Current Value vs Current value); the script normalizes them so either form parses correctly.

Caveat: the Options "Note" column is heuristic

A positions export can't distinguish a cash-secured put from a margin put, or a covered call from a naked one. The script guesses (short put → "cash-secured"; short call → "covered vs TICKER shares" when the underlying is held). Verify these before sharing.

Scope

This skill summarizes holdings. It does not value, rate, or recommend positions, and adds no price targets or projections.

Changelog

• 2026-07-15 — Fixed CSV parsing to match column headers case-insensitively. A Fidelity export using lowercase headers (e.g. Current value) previously caused every market value to read as $0; headers are now normalized before lookup. Backward-compatible with title-case exports.

License

MIT — see LICENSE.

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For informational use only. Not investment advice.