SANTA MONICA PARTNERS LP
Regulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: the S&P 500 as of 2026-06-30, active share 97.8%; sector active share 54.4% against the combined 13F book's sector weights.
Over time 26 measured quarters
How the bands are measured
Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.
Clone Performance
Build a hypothetical price-return history from this filer's public 13F holdings.
View clone backtestPortfolio Concentration
11 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Financial Services | 50.7% | $56,535,850 |
| Technology | 40.0% | $44,617,053 |
| Basic Materials | 7.7% | $8,633,345 |
| Energy | 1.3% | $1,426,320 |
| Unclassified | 0.3% | $336,986 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedTrimmed
Positions the filer reducedNew Positions
Positions the filer opened this quarterSold Out
Positions the filer fully exited| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| MA |
Mastercard Inc
Financial Services
|
Held | 102,170 | $52,474,512 | 47.04% | |
| BELFB |
Bel Fuse Inc
Technology
|
Held | 67,634 | $22,524,827 | 20.19% | |
| GRMN |
Garmin Ltd
Technology
|
Held | 40,755 | $9,680,942 | 8.68% | |
| BCPC |
Balchem Corp
Basic Materials
|
Held | 51,100 | $8,633,345 | 7.74% | |
| BELFA |
Bel Fuse Inc
Technology
|
Held | 23,434 | $6,824,683 | 6.12% | |
| BR |
Broadridge Financial Solutions, Inc.
Technology
|
Held | 40,793 | $5,586,601 | 5.01% | |
| BRK-A |
Berkshire Hathaway Inc
Financial Services
|
Held | 4 | $2,995,400 | 2.69% | |
| LB |
LandBridge Corp
Energy
|
Held | 18,000 | $1,426,320 | 1.28% | |
| MCB |
Metropolitan Bank Holding Corp.
Financial Services
|
Held | 7,811 | $771,414 | 0.69% | |
| BTC |
Grayscale Bitcoin Mini Trust ETF
|
Held | 12,986 | $336,986 | 0.30% | |
| BNT |
Brookfield Wealth Solutions Ltd.
Financial Services
|
Held | 6,904 | $294,524 | 0.26% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.