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13F Portfolio Holdings Changes (Quarter-over-Quarter)
x402
13F Portfolio Holdings Changes (Quarter-over-Quarter) is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Returns quarter-over-quarter changes in an institutional manager's 13F portfolio, bucketing each position as new, added, reduced, sold out, or unchanged, with share/dollar deltas and a net flow summary.
Price / call$0.05
Success—
StatusUnknown
How this service works
Quarter-over-quarter change of an institutional manager's Form 13F portfolio. Give a CIK or name and get every position bucketed as new, added, reduced, sold out or unchanged, with per-position share and dollar deltas and a net flow summary, from two consecutive 13F filings, cited to both.
Output
A structured JSON object listing every 13F position bucketed as new, added, reduced, sold out, or unchanged, with per-position share count and dollar value deltas, a net flow summary, and citations to both consecutive 13F filings used for the comparison.
Example use cases
Example prompt
“Show me all the quarter-over-quarter 13F portfolio changes for Appaloosa Management — I want to see which positions they added, reduced, sold out of, or initiated new, with the share and dollar deltas, for their latest filing.”
Technical details
Endpoint
GEThttps://api.agentstools.dev/holdings/changesWhen to prefer
Use this endpoint when you need a structured diff of an institutional manager's 13F portfolio between two consecutive quarters — specifically when you want per-position change classification (new/added/reduced/sold/unchanged) with numeric deltas, rather than a raw snapshot of current holdings. Prefer over raw 13F snapshot endpoints when the user's intent is change detection, trend analysis, or identifying entry/exit decisions by a fund.
Side effects
- CIK not found in SEC EDGAR — returns error if CIK is invalid or not a 13F filer
- Manager name not resolvable — best-effort name resolution may fail; recommend supplying CIK directly
- No consecutive 13F filings available for the requested quarter — returns error if only one or zero filings exist
- Invalid quarter date format — must be ISO YYYY-MM-DD matching a valid quarter-end date
- Payment failure — x402 micropayment not completed, request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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