CIK: 0001911328
Total reported value
$122.3M
Reporting period: 2026-03-31 · Number of holdings: 39
Roger Wittlin Investment Advisory, LLC disclosed 39 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $122.3M and a quarterly turnover rate of 21.3%.
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Roger Wittlin Investment Advisory, LLC's disclosed holdings carry a Herfindahl concentration index of 0.093 — mathematically equivalent to about 11 equally-sized positions, well below its 39 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.65), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 1% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim SCHB
-39.4% -$5.5M
Add VXUS
+73.9% $2.7M
Trim LONZ
-54.5% -$4.2M
Add IVV
-2.2% -$1.3M
Add ITOT
-2.9% -$976.2K
Trim VTI
-12.9% -$5.0M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 20.56% | -0.54% | -12.95% | |
| 2 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 14.91% | +1.23% | -2.25% | |
| 3 | ITOT | Ishares Core S&p Total U.s. | ETF-Other | 10.66% | +0.87% | -2.88% | |
| 4 | SCHB | Schwab US Broad Market ETF | ETF-Other | 6.20% | -2.94% | -39.37% | |
| 5 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 5.81% | -0.30% | -14.80% | |
| 6 | VXUS | Vanguard Total Intl Stock | ETF-Other | 5.14% | +2.67% | +73.86% | |
| 7 | VLU | Ss Spdr S&p 1500 Value Tilt | ETF-Other | 3.75% | +0.22% | -10.91% | |
| 8 | VO | Vanguard Mid-cap ETF | ETF-Other | 3.42% | +0.15% | -9.72% | |
| 9 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 3.39% | -0.28% | -15.96% | |
| 10 | LONZ | Pimco Senior Loan Active ETF | ETF-Other | 2.75% | -2.50% | -54.47% | |
| 11 | BOND | Pimco Active Bond Exchange-t | ETF-Other | 2.70% | +0.07% | -11.61% | |
| 12 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 2.41% | +0.25% | -4.98% | |
| 13 | IAU | Ishares Gold Trust | ETF-Commodities | 2.06% | — | -21.05% | |
| 14 | IEFA | Ishares Core Msci Eafe ETF | ETF-Other | 1.43% | +0.35% | +11.78% | |
| 15 | BND | Vanguard Total Bond Market | ETF-Other | 1.33% | +0.19% | -0.03% | |
| 16 | GLD | Spdr Gold Shares | ETF-Commodities | 1.16% | +0.25% | — | |
| 17 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 0.95% | +0.16% | +0.23% | |
| 18 | SDY | Ss Spdr S&p Dividend ETF | ETF-Other | 0.91% | -0.08% | -24.81% | |
| 19 | MINT | Pimco Enhanced Short Maturit | ETF-Other | 0.90% | -0.06% | -19.94% | |
| 20 | VMBS | Vanguard Mortgage-backed Sec | ETF-Other | 0.89% | -0.04% | -18.13% | |
| 21 | PYLD | Pimco Multisector Bond Actv | ETF-Other | 0.86% | -0.04% | -16.53% | |
| 22 | VIG | Vanguard Dividend Apprec ETF | ETF-Other | 0.81% | -0.36% | -39.28% | |
| 23 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.73% | +0.07% | +0.33% | |
| 24 | VGK | Vanguard Ftse Europe ETF | ETF-Other | 0.73% | +0.09% | -1.45% | |
| 25 | PLTR | Palantir Technologies Inc-a | Stock-Tech | 0.64% | -0.02% | — | |
| 26 | LQD | Ishr Ibx Usd Invgd Cb Etf-ui | ETF-Corp Bonds | 0.60% | — | -13.50% | |
| 27 | SPMO | Invesco S&p 500 Momentum ETF | ETF-Large Cap & Growth | 0.51% | -0.09% | -22.78% | |
| 28 | IUSB | Ishr Cr Unvrse Usd Bd Etf-ui | ETF-Other | 0.47% | +0.06% | +0.69% | |
| 29 | IGSB | Ishares 1-5y Inv Grade CORP | ETF-Other | 0.47% | +0.05% | -5.40% | |
| 30 | SCHF | Schwab Intl Equity ETF | ETF-Other | 0.46% | +0.28% | +111.81% | |
| 31 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 0.41% | -0.03% | -21.24% | |
| 32 | SCHA | Schwab US Small-cap ETF | ETF-Other | 0.32% | +0.01% | -13.92% | |
| 33 | JIVE | JPM Interntl Value ETF | ETF-Other | 0.30% | +0.30% | NEW | |
| 34 | FNDX | Schwab Fndmntl US Lrg Co ETF | ETF-Other | 0.29% | +0.05% | +0.41% | |
| 35 | SHY | Ishares 1-3 Year Treasury Bo | ETF-Gov Bonds | 0.25% | +0.03% | +0.56% | |
| 36 | VT | Vanguard Tot World Stk ETF | ETF-Other | 0.24% | +0.03% | +0.24% | |
| 37 | PLD | Prologis INC | Stock-Real Estate | 0.23% | +0.04% | +0.80% | |
| 38 | EFA | Ishares Msci Eafe ETF | ETF-Other | 0.18% | +0.03% | +1.02% | |
| 39 | FLRN | Ss Spdr Bb Ig Float Rt ETF | ETF-Other | 0.16% | +0.02% | -1.32% |
Performance for Q3 2026
+2.2%
Performance Last 4 Quarters
+14.8%
Based on 64% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 39 | $122.3M | 21 | |
| 2025-12-31 | 39 | $143.0M | 25 | |
| 2025-09-30 | 41 | $179.9M | 15 | |
| 2025-06-30 | 43 | $179.4M | 0 | |
| 2025-03-31 | 43 | $170.9M | 0 | |
| 2024-12-31 | 43 | $178.6M | 0 | |
| 2024-09-30 | 54 | $173.8M | 0 | |
| 2024-06-30 | 49 | $155.8M | 0 | |
| 2024-03-31 | 46 | $142.6M | 0 | |
| 2023-12-31 | 41 | $135.4M | 0 | |
| 2023-09-30 | 39 | $117.8M | 0 | |
| 2023-06-30 | 42 | $123.3M | 0 | |
| 2023-03-31 | 42 | $111.9M | 0 | |
| 2022-12-31 | 38 | $100.2M | 0 | |
| 2022-09-30 | 17 | $3.7M | 0 | |
| 2022-06-30 | 29 | $101.4M | 0 | |
| 2022-03-31 | 24 | $108.6M | 0 | |
| 2021-12-31 | 26 | $127.3M | 0 |
Roger Wittlin Investment Advisory, LLC's most significant position changes for 2026-03-31: New buy: JPM Interntl Value ETF (JIVE); Sold out: Vanguard S/t CORP Bond ETF (VCSH); Trim: Schwab US Broad Market ETF (SCHB) — shares -39.37%; Add: Vanguard Total Intl Stock (VXUS) — shares +73.86%; Trim: Pimco Senior Loan Active ETF (LONZ) — shares -54.47%.
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-13 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-20 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-27 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-15 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-01 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-12 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-08 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-25 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-02 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-23 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-31 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-12 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-10 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-25 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-25 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-18 | 13F-HR | View on EDGAR |
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