Avalon Advisory Group Llc
- Regulatory AUM
- $290M
- Discretionary
- $290M
- Clients
- 137
- Avg AUM / client
- $2.1M
- Accounts
- 457
- Employees
- 4
AUM over time
Annual snapshots from Form ADV filings · as of Mar 30, 2026
Investments (13F portfolio — 12 positions, $247,852,011)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Vanguard Index Fds | TOTAL STK MKT | $124,529,289 | 388,171 | 50.2% | 42.9% |
| 2 | Ishares Tr | 7-10 YR TRSY BD | $88,283,472 | 925,015 | 35.6% | 30.4% |
| 3 | Vanguard Intl Equity Index F | ALLWRLD EX US | $15,050,036 | 200,400 | 6.07% | 5.18% |
| 4 | Ishares Tr | CORE S&P TTL STK | $7,234,589 | 50,794 | 2.92% | 2.49% |
| 5 | Schwab Strategic Tr | INTL EQTY ETF | $4,396,739 | 177,646 | 1.77% | 1.51% |
| 6 | Schwab Strategic Tr | US BRD MKT ETF | $3,893,587 | 155,123 | 1.57% | 1.34% |
| 7 | Vanguard Star Fds | VG TL INTL STK F | $2,322,765 | 30,123 | 0.94% | 0.8% |
| 8 | Vanguard Index Fds | S&P 500 ETF SHS | $828,935 | 1,387 | 0.33% | 0.29% |
| 9 | Microsoft Corp | COM | $397,563 | 1,074 | 0.16% | 0.14% |
| 10 | Apple Inc | COM | $368,503 | 1,452 | 0.15% | 0.13% |
| 11 | Nvidia Corporation | COM | $284,446 | 1,631 | 0.11% | 0.1% |
| 12 | State Str Spdr S&P 500 Etf T | TR UNIT | $262,087 | 403 | 0.11% | 0.09% |
Top 25 of 12 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 83 | $30.2M | 10.4% |
| High net worth individuals | 54 | $260M | 89.6% |
People (4)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Caitlin Nmn Cully | Principal | May 2018 (8y) | 25% – 50% | |
| Ian Cully | Principal, Cco | CFP | May 2018 (8y) | 25% – 50% |
| John Joseph Cully | Principal | May 2018 (8y) | 10% – 25% | |
| Walter Andrew Laub | Partner / Director Of Financial Planning | CFP CFA | Aug 2018 (8y) | 10% – 25% |
Undisclosed: 0% – 30% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/30/2026 | 910 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
Services
- • Financial planning services
- • Portfolio management for individuals/small businesses
Custody
Reported custodians
- Charles Schwab & Co. $281M (97% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 30, 2026.
View current Form ADV (SEC/IAPD) ↗