CIK: 0001512171
Total reported value
$2.3B
Reporting period: 2026-03-31 · Number of holdings: 19
Route One Investment Company, L.P. disclosed 19 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $2.3B and a quarterly turnover rate of 34.7%.
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Route One Investment Company, L.P.'s disclosed holdings carry a Herfindahl concentration index of 0.074 — mathematically equivalent to about 13 equally-sized positions, close to its 19 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.66), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.4 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Trim ESS
-44.1% -$67.4M
Add VIST
+18.8% $42.0M
Add HLF
+0.8% $15.9M
Add POST
-5.9% -$19.0M
Add KRC
+38.0% $4.5M
Add NYT
-20.8% -$9.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | POST | Post Holdings INC | Stock-Consumer Staples | 12.42% | +0.88% | -5.93% | |
| 2 | GWRE | Guidewire Software INC | Stock-Tech | 11.77% | -0.70% | +10.71% | |
| 3 | AMZN | Amazon.com INC | Stock-Consumer Disc | 9.15% | -0.61% | -9.30% | |
| 4 | NYT | New York Times Co-a | Stock-Comm Services | 8.76% | +0.75% | -20.82% | |
| 5 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 8.41% | +0.38% | — | |
| 6 | SCHW | Schwab (charles) CORP | Stock-Financials | 6.73% | -0.09% | -8.49% | |
| 7 | UNH | Unitedhealth Group INC | Stock-Healthcare | 6.14% | -0.08% | +5.04% | |
| 8 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 5.41% | -0.26% | -1.86% | |
| 9 | HLF | Herbalife Ltd. | Stock-Other | 5.16% | +1.25% | +0.80% | |
| 10 | KRC | Kilroy Realty CORP | Stock-Real Estate | 4.86% | +0.79% | +37.96% | |
| 11 | VIST | Vista Energy Sab De Cv | Stock-Other | 3.91% | +2.06% | +18.80% | |
| 12 | MELI | Mercadolibre INC | Stock-Consumer Disc | 3.30% | +3.30% | NEW | |
| 13 | ESS | Essex Property Trust INC | Stock-Real Estate | 3.07% | -2.11% | -44.10% | |
| 14 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 2.77% | +2.77% | NEW | |
| 15 | TBBB | BBB Foods Inc. | Stock-Other | 2.30% | +0.58% | +10.40% | |
| 16 | PCOR | Procore Technologies INC | Stock-Tech | 2.23% | -0.25% | — | |
| 17 | VEEV | Veeva Systems Inc-class A | Stock-Healthcare | 1.36% | +0.07% | +17.47% | |
| 18 | GGAL | Grupo Financiero Galicia-adr | Stock-Other | 1.15% | +1.15% | NEW | |
| 19 | BMA | Banco Macro Sa-adr | Stock-Other | 1.09% | +1.09% | NEW |
Performance for Q3 2026
-1.3%
Performance Last 4 Quarters
+6.5%
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 19 | $2.3B | 35 | |
| 2025-12-31 | 16 | $2.7B | 46 | |
| 2025-09-30 | 18 | $2.7B | 37 | |
| 2025-06-30 | 15 | $2.3B | 0 | |
| 2025-03-31 | 14 | $2.4B | 100 | |
| 2024-12-31 | 14 | $2.6B | 0 | |
| 2024-09-30 | 16 | $2.9B | 0 | |
| 2024-06-30 | 17 | $2.9B | 0 | |
| 2024-03-31 | 18 | $2.7B | 0 | |
| 2023-12-31 | 17 | $4.9B | 0 | |
| 2023-09-30 | 16 | $2.9B | 0 | |
| 2023-06-30 | 14 | $2.8B | 0 | |
| 2023-03-31 | 15 | $2.7B | 0 | |
| 2022-12-31 | 14 | $2.2B | 0 | |
| 2022-09-30 | 15 | $2.6B | 0 | |
| 2022-06-30 | 15 | $2.8B | 0 | |
| 2022-03-31 | 15 | $3.2B | 0 | |
| 2021-12-31 | 16 | $4.5B | 0 | |
| 2021-09-30 | 16 | $3.9B | 0 | |
| 2021-06-30 | 18 | $4.2B | 18 | |
| 2021-03-31 | 20 | $4.0B | 24 | |
| 2020-12-31 | 16 | $3.6B | 29 | |
| 2020-09-30 | 18 | $3.8B | 21 | |
| 2020-06-30 | 17 | $3.5B | 25 | |
| 2020-03-31 | 16 | $3.1B | 37 | |
| 2019-12-31 | 13 | $3.5B | 17 | |
| 2019-09-30 | 12 | $3.3B | 8 | |
| 2019-06-30 | 12 | $3.3B | 45 | |
| 2019-03-31 | 13 | $4.2B | 48 | |
| 2018-12-31 | 12 | $2.8B | 28 | |
| 2018-09-30 | 13 | $3.1B | 24 | |
| 2018-06-30 | 13 | $2.6B | 26 | |
| 2018-03-31 | 13 | $2.3B | 82 | |
| 2017-12-31 | 14 | $4.7B | 34 | |
| 2017-09-30 | 13 | $3.5B | 36 | |
| 2017-06-30 | 12 | $2.6B | 20 | |
| 2017-03-31 | 13 | $2.7B | 43 | |
| 2016-12-31 | 14 | $3.2B | 57 | |
| 2016-09-30 | 16 | $2.2B | 35 | |
| 2016-06-30 | 17 | $1.9B | 28 | |
| 2016-03-31 | 15 | $1.9B | 26 | |
| 2015-12-31 | 13 | $1.6B | 48 | |
| 2015-09-30 | 13 | $1.7B | 34 | |
| 2015-06-30 | 12 | $1.2B | 36 | |
| 2015-03-31 | 10 | $873.0M | 42 | |
| 2014-12-31 | 9 | $567.6M | 46 | |
| 2014-09-30 | 8 | $432.9M | 14 | |
| 2014-06-30 | 10 | $453.8M | 51 | |
| 2014-03-31 | 11 | $589.1M | 44 | |
| 2013-12-31 | 11 | $468.0M | 38 | |
| 2013-09-30 | 8 | $403.0M | 77 | |
| 2013-06-30 | 10 | $564.3M | 0 |
Route One Investment Company, L.P.'s most significant position changes for 2026-03-31: Sold out: Ishares Russell 2000 ETF (IWM); New buy: Mercadolibre INC (MELI); New buy: Ss Spdr S&p 500 ETF Trust-us (SPY); New buy: Grupo Financiero Galicia-adr (GGAL); New buy: Banco Macro Sa-adr (BMA).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VIST | Vista Energy Sab De Cv | +2.1% | +18.80% | Add |
| 2 | HLF | Herbalife Ltd. | +1.3% | +0.80% | Add |
| 3 | POST | Post Holdings INC | +0.9% | -5.93% | Trim |
| 4 | KRC | Kilroy Realty CORP | +0.8% | +37.96% | Add |
| 5 | NYT | New York Times Co-a | +0.8% | -20.82% | Trim |
| 6 | TBBB | BBB Foods Inc. | +0.6% | +10.40% | Add |
| 7 | GOOG | Alphabet Inc-cl C | +0.4% | — | Unchanged |
| 8 | VEEV | Veeva Systems Inc-class A | +0.1% | +17.47% | Add |
| 9 | UNH | Unitedhealth Group INC | -0.1% | +5.04% | Add |
| 10 | SCHW | Schwab (charles) CORP | -0.1% | -8.49% | Trim |
| 11 | PCOR | Procore Technologies INC | -0.3% | — | Unchanged |
| 12 | TMO | Thermo Fisher Scientific INC | -0.3% | -1.86% | Trim |
| 13 | AMZN | Amazon.com INC | -0.6% | -9.30% | Trim |
| 14 | GWRE | Guidewire Software INC | -0.7% | +10.71% | Add |
| 15 | ESS | Essex Property Trust INC | -2.1% | -44.10% | Trim |
| 16 | IWM | Ishares Russell 2000 ETF | — | EXIT | Sold out |
| 17 | MELI | Mercadolibre INC | — | NEW | New buy |
| 18 | SPY | Ss Spdr S&p 500 ETF Trust-us | — | NEW | New buy |
| 19 | GGAL | Grupo Financiero Galicia-adr | — | NEW | New buy |
| 20 | BMA | Banco Macro Sa-adr | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-15 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-15 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-16 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-17 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-16 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-16 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-14 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-15 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-14 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-14 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-14 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-15 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-14 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-14 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-14 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-14 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-14 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-12 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-16 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-16 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-16 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-14 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-15 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-17 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-14 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-14 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-15 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-14 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-14 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-14 | 13F-HR | View on EDGAR |
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