Blue Grotto Capital, LLC
"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.
13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.
We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 24 quarters, returned +4.5% per quarter — versus +3.9% per quarter from simply owning every 13F stock. It beat that baseline in only 45.8% of quarters (excess t = 1.46, not statistically significant). Its filings tell you what it bought — not what you should buy.
Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)
Top 20 holdings of 21 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| MKSI | $86M | | TRIM |
| CACI | $80M | | ADD |
| SN | $71M | | TRIM |
| TLN | $70M | | ADD |
| AKAM | $69M | | NEW |
| NVDA | $61M | | NEW |
| TSM | $59M | | ADD |
| COF | $51M | | NEW |
| FIX | $49M | | TRIM |
| CELH | $45M | | NEW |
| RBA | $43M | | NEW |
| V | $40M | | NEW |
| HAS | $28M | | ADD |
| CDW | $28M | | TRIM |
| TTWO | $23M | | ADD |
| MGNI | $16M | | TRIM |
| CMCO | $14M | | NEW |
| SEDG | $13M | | TRIM |
| SE | $12M | | TRIM |
| BIRK | $7M | | TRIM |
QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.
New positions in 2026 Q1
Method & Limitations
Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.