VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Sunday, May 31, 2026
Tool Comparison · Sunday, May 31, 2026
AUM 13F vs DATAROMA
AUM 13F vs DATAROMA: which investing tool fits your workflow? Compare pricing, features, platforms, and verdict in seconds.
AUM 13F
aum13f.com
Best for 13d/13g, and improved filings
- Pricing
- Free • From $29/mo
- Platforms
- Web
DATAROMA
dataroma.com
Best for stock ideas, and investor holdings
- Pricing
- Free
- Platforms
- Web
Outbound links may include affiliate or sponsor codes.
Comparison snapshot
Who should choose which?
Choose
AUM 13F if…
- You need analyze asset managers using public filings and drill into edgar, iapd, and cafr source data.
- You need homepage remains active with current large-manager aum rankings; examples observed in may 2026 include vanguard group ($10,246.6b), fidelity management & research ($4,730.7b), blackrock fund advisors ($3,535.4b), capital research and management ($3,315.4b), and pimco ($2,990.2b).
- You need filter/browse by fund type (private equity, hedge fund, real estate) plus tags, location, and aum size.
- You need firm pages aggregate aum history, aum breakdowns, and form 13f holdings (with sector views) and link to edgar filings (e.g., 13f-hr, sc 13g, forms d/3/4).
Choose
DATAROMA if…
- You’re just getting started and want an approachable UI
- You’re a long-term or value-focused investor
- You need homepage states it is “currently tracking portfolios” of superinvestors (count shown on-page and may change over time) and highlights recent activity / insider buys of superinvestor holdings.
- You need superinvestor holdings pages list positions with % of portfolio, activity (e.g., add/reduce), shares, reported price, current price, and 52‑week low/high.
Consider alternatives if…
- You want broader category coverage in one tool.
- Neither pricing tier fits your budget.
Side-by-side feature breakdown
| Attribute | AUM 13F | DATAROMA |
|---|---|---|
Asset types | StocksETFsHedge FundsPrivate FundsReal EstateFunds | StocksETFs |
Experience | IntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | Not specified | North America |
Data freshness | Not specified | Not specified |
API access | Not specified | Not specified |
Export formats | Not specified | Not specified |
Seen enough? Open either tool and try it now.
Pricing breakdown
Tool
AUM 13F
$29/mo
Starting price
Plans & pricing
Tool
DATAROMA
—
Starting price
Plans & pricing
Pricing not published
Coverage overlap
Categories covered by AUM 13F only.
Categories covered by DATAROMA only.
Community category leaders
Vote sentiment comparison
Loading sentiment chart...
Still deciding? Get hands-on with both — most plans offer a free tier or trial.
Frequently Asked Questions
What's the difference between AUM 13F and DATAROMA?
AUM 13F focuses on 13F, 13D/13G, and Insider Data while DATAROMA specializes in Stock Ideas, Investor Holdings, and 13F. They overlap in 2 categories, so choose based on your preferred workflow and pricing.
How much do AUM 13F and DATAROMA cost?
Good news—both AUM 13F and DATAROMA offer free plans. You can try each platform without commitment and only pay when you need premium features.
Which is better for beginners—AUM 13F or DATAROMA?
DATAROMA is more beginner-friendly with an approachable interface. Both can work for intermediate users.
Should I choose AUM 13F or DATAROMA?
Choose AUM 13F if you need Analyze asset managers using public filings and drill into EDGAR, IAPD, and CAFR source data., and Homepage remains active with current large-manager AUM rankings; examples observed in May 2026 include Vanguard Group ($10,246.6B), Fidelity Management & Research ($4,730.7B), BlackRock Fund Advisors ($3,535.4B), Capital Research and Management ($3,315.4B), and PIMCO ($2,990.2B).. Go with DATAROMA if Homepage states it is “currently tracking portfolios” of superinvestors (count shown on-page and may change over time) and highlights recent activity / insider buys of superinvestor holdings., and Superinvestor holdings pages list positions with % of portfolio, activity (e.g., Add/Reduce), shares, reported price, current price, and 52‑week low/high. better fits how you invest.
What asset classes do AUM 13F and DATAROMA cover?
Both cover Stocks, and ETFs. AUM 13F also includes Hedge Funds, Private Funds, Real Estate, and Funds.
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.