Cornerstone Investment Partners, 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. Buying this fund's new positions the day each filing went public, over 31 quarters, returned +4.7% per quarter versus +2.6% from owning every 13F stock, beating that baseline in 51.6% of quarters (excess t = 2.27, statistically significant). Caveat: across all 5,072 funds we tested, past performance shows near-zero persistence (rank correlation −0.018) — with thousands of funds, some will look significant by chance alone.
Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)
Top 20 holdings of 291 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| GOOGL | $136M | | TRIM |
| KLAC | $122M | | TRIM |
| AMAT | $115M | | TRIM |
| TSM | $103M | | ADD |
| AVGO | $100M | | TRIM |
| META | $98M | | TRIM |
| MU | $97M | | TRIM |
| V | $95M | | ADD |
| COR | $85M | | TRIM |
| AMZN | $85M | | ADD |
| MCK | $81M | | TRIM |
| CB | $75M | | TRIM |
| IQV | $74M | | TRIM |
| FANG | $70M | | TRIM |
| WRB | $70M | | TRIM |
| APO | $69M | | TRIM |
| MSFT | $66M | | TRIM |
| TTWO | $66M | | TRIM |
| DG | $66M | | TRIM |
| BND | $65M | | HOLD |
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.