NEXT CENTURY GROWTH INVESTORS 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 31 quarters, returned +2.7% per quarter — versus +2.6% per quarter from simply owning every 13F stock. It beat that baseline in only 48.4% of quarters (excess t = 0.96, 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 112 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| ATRO | $52M | | TRIM |
| LINC | $42M | | ADD |
| ALHC | $40M | | TRIM |
| AORT | $37M | | HOLD |
| MYRG | $37M | | TRIM |
| MIRM | $36M | | ADD |
| UTI | $34M | | TRIM |
| XMTR | $32M | | TRIM |
| PAY | $29M | | HOLD |
| MTSI | $29M | | ADD |
| AXGN | $29M | | ADD |
| AEHR | $28M | | ADD |
| STRL | $27M | | TRIM |
| AAOI | $27M | | TRIM |
| MAMA | $27M | | ADD |
| ALM | $26M | | HOLD |
| COHR | $26M | | ADD |
| LSCC | $26M | | TRIM |
| ATEC | $26M | | HOLD |
| GLBE | $24M | | ADD |
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.