VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Sunday, May 31, 2026
Tool Comparison · Sunday, May 31, 2026
AUM 13F vs IBorrowDesk
AUM 13F vs IBorrowDesk: which investing tool fits your workflow? Compare pricing, features, platforms, and verdict in seconds.
AUM 13F
aum13f.com
Best for 13f, and 13d/13g
- Pricing
- Free • From $29/mo
- Platforms
- Web
IBorrowDesk
iborrowdesk.com
Best for short interest
- Pricing
- Free • Paid plans available
- 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
IBorrowDesk if…
- You’re just getting started and want an approachable UI
- You need borrow fee percentages and shortable share availability, sourced directly from interactive brokers public datasets.
- You need intraday refresh cadence: ~15 minutes during north american trading hours; hourly outside of them on weekdays.
- You need per-ticker pages show recent borrow snapshots with timestamps, plus options to add tickers to a watchlist or set alerts.
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 | IBorrowDesk |
|---|---|---|
Asset types | StocksETFsHedge FundsPrivate FundsReal EstateFunds | StocksETFs |
Experience | IntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | Not specified | North AmericaEuropeAPACLatAm |
Data freshness | Not specified | 15-min DelayedEnd of Day |
API access | Not specified | Not specified |
Export formats | Not specified | CSV |
Seen enough? Open either tool and try it now.
Pricing breakdown
Tool
AUM 13F
$29/mo
Starting price
Plans & pricing
Tool
IBorrowDesk
$10/mo
Starting price
Plans & pricing
Coverage overlap
Categories covered by AUM 13F 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 IBorrowDesk?
AUM 13F focuses on 13F, 13D/13G, and Insider Data while IBorrowDesk specializes in Short Interest, Watchlist, and Alerts. They overlap in 2 categories, so choose based on your preferred workflow and pricing.
How much do AUM 13F and IBorrowDesk cost?
Good news—both AUM 13F and IBorrowDesk 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 IBorrowDesk?
IBorrowDesk is more beginner-friendly with an approachable interface. Both can work for intermediate users.
Should I choose AUM 13F or IBorrowDesk?
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 IBorrowDesk if Borrow fee percentages and shortable share availability, sourced directly from Interactive Brokers public datasets., and Intraday refresh cadence: ~15 minutes during North American trading hours; hourly outside of them on weekdays. better fits how you invest.
What asset classes do AUM 13F and IBorrowDesk cover?
Both cover Stocks, and ETFs. AUM 13F also includes Hedge Funds, Private Funds, Real Estate, and Funds.
Can I export data from AUM 13F and IBorrowDesk?
IBorrowDesk supports data exports to CSV. AUM 13F has more limited export options.
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.