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Roubaix Capital Portfolio holdings
AUM
$214M
1-Year Est. Return
32.43%
This Fund
S&P 500
This Quarter
Est. Return
+2.69%
1 Year Est. Return
+32.43%
3 Year Est. Return
+104.01%
5 Year Est. Return
+128.11%
10 Year Est. Return
–
AUM
$235M
AUM Growth
+$19.8M
(+9.2%)
Cap. Flow
+$18.2M
Cap. Flow
% of AUM
7.75%
Top 10 Holdings %
Top 10 Hldgs %
29.6%
Holding
68
New
21
Increased
15
Reduced
10
Closed
22
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Revvity
RVTY
|
+$5.87M |
| 2 |
Xometry
XMTR
|
+$5.69M |
| 3 |
Birkenstock
BIRK
|
+$5.53M |
| 4 |
Azenta
AZTA
|
+$5.3M |
| 5 |
Transcat
TRNS
|
+$5.27M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
TAT Technologies
TATT
|
+$11M |
| 2 |
ATS Corp
ATS
|
+$5.86M |
| 3 |
James Hardie Industries
JHX
|
+$5.6M |
| 4 |
Champion Homes
SKY
|
+$4.78M |
| 5 |
WAY
Waystar Holding Corp
WAY
|
+$4.48M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 33.84% |
| 2 | Industrials | 30.82% |
| 3 | Healthcare | 17.23% |
| 4 | Consumer Discretionary | 9.23% |
| 5 | Materials | 4.65% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
51
Axogen
AXGN
$2.19B
| – | – |
-216,861
| Closed | -$3.87M |
|
52
Bio-Rad Laboratories Class A
BIO
$8.47B
| – | – |
-8,112
| Closed | -$2.27M |
|
53
Graham Corp
GHM
$1.22B
| – | – |
-69,364
| Closed | -$3.81M |
|
54
Holley
HLLY
$319M
| – | – |
-774,304
| Closed | -$2.43M |
|
|
55
James Hardie Industries
JHX
$15.5B
| – | – |
-291,314
| Closed | -$5.6M |
|
56
Knife River
KNF
$4.46B
| – | – |
-37,787
| Closed | -$2.9M |
|
57
MKS Inc
MKSI
$21.3B
| – | – |
-33,588
| Closed | -$4.16M |
|
|
MTLS
58
Materialise
MTLS
$373M
| – | – |
-423,016
| Closed | -$2.36M |
|
59
Universal Display
OLED
$3.81B
| – | – |
-26,963
| Closed | -$3.87M |
|
60
UiPath
PATH
$6.02B
| – | – |
-161,619
| Closed | -$2.16M |
|
61
PubMatic
PUBM
$594M
| – | – |
-271,335
| Closed | -$2.25M |
|
62
QCR Holdings
QCRH
$1.64B
| – | – |
-48,618
| Closed | -$3.68M |
|
63
RadNet
RDNT
$4.84B
| – | – |
-46,439
| Closed | -$3.54M |
|
64
Saia
SAIA
$11.2B
| – | – |
-10,836
| Closed | -$3.24M |
|
|
65
Champion Homes
SKY
$4.52B
| – | – |
-62,643
| Closed | -$4.78M |
|
|
66
TAT Technologies
TATT
$560M
| – | – |
-250,141
| Closed | -$11M |
|
67
Thryv Holdings
THRY
$184M
| – | – |
-281,454
| Closed | -$3.39M |
|
|
WAY
68
Waystar Holding Corp
WAY
$4.44B
| – | – |
-118,092
| Closed | -$4.48M |
|
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Roubaix Capital's Q4 2025 Portfolio in Review
As of Q4 2025, Roubaix Capital held 68 positions worth $235M, up 9.2% from $215M the previous quarter. Its ten largest holdings account for 30% of the portfolio.
Roubaix Capital deployed $18.2M of net new capital in Q4 2025, opening 21 new positions and adding to 15 existing holdings. Its largest new stake was Revvity: 61,105 shares worth $5.91M.
By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 30% a quarter earlier, followed by Industrials and Healthcare.
On the sell side, the largest reduction was nLIGHT, an estimated $3.51M trimmed.
- Roubaix Capital's largest Q4 2025 buy was Revvity: 61,105 shares worth $5.91M.
- Roubaix Capital added most to Azenta in Q4 2025, an estimated $5.3M increase.
- Roubaix Capital's biggest Q4 2025 reduction was nLIGHT, cutting an estimated $3.51M.
- Roubaix Capital fully exited TAT Technologies in Q4 2025, selling an estimated $11M.
- Roubaix Capital's ten largest holdings make up 30% of its $235M portfolio in Q4 2025.
- Roubaix Capital opened 21 new positions and closed 22 in Q4 2025.
- Roubaix Capital's portfolio value rose 9.2% quarter-over-quarter to $235M.
Based on Roubaix Capital's 13F filing for Q4 2025, filed 9 Feb 2026.