RC

Roubaix Capital Portfolio holdings

AUM $279M Turnover 69.01%
1-Year Est. Return 54.84%
This Fund
S&P 500
This Quarter Est. Return
+2.69%
1 Year Est. Return
+54.84%
3 Year Est. Return
+173.81%
5 Year Est. Return
+195.03%
10 Year Est. Return
–
AUM
$235M
AUM Growth
+$19.8M
Cap. Flow
+$18.2M
Cap. Flow %
7.75%
Top 10 Hldgs %
29.6%
Holding
68
New
21
Increased
15
Reduced
10
Closed
22
Avg Time Held
0.5 years
Top 10 Avg Time Held
0.6 years
Top 20 Avg Time Held
0.6 years

Top Buys

Rank Stock Value
1
RVTY icon
Revvity
RVTY
+$5.87M
2
XMTR icon
Xometry
XMTR
+$5.69M
3
BIRK icon
Birkenstock
BIRK
+$5.53M
4
AZTA icon
Azenta
AZTA
+$5.3M
5
TRNS icon
Transcat
TRNS
+$5.27M

Top Sells

Rank Stock Value
1
TATT icon
TAT Technologies
TATT
+$11M
2
ATS icon
ATS Corp
ATS
+$5.86M
3
JHX icon
James Hardie Industries
JHX
+$5.6M
4
SKY icon
Champion Homes
SKY
+$4.78M
5
WAY icon
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 Held Since
RAL icon
1
Ralliant Corp
RAL
$7.73B
$8.84M 3.77%
173,580
+9,109
+6% +$427K
2025 Q3
1 quarter
SARO icon
2
StandardAero Inc
SARO
$6.54B
$8.38M 3.58%
292,354
+53,795
+23% +$1.46M
2024 Q4
4 quarters
AGYS icon
3
Agilysys
AGYS
$3.03B
$7.16M 3.05%
60,243
+3,294
+6% +$396K
2025 Q1
3 quarters
NPKI icon
4
NPK International
NPKI
$929M
$6.86M 2.92%
575,348
-167,349
-23% -$2.04M
2023 Q2
10 quarters
TRNS icon
5
Transcat
TRNS
$770M
$6.59M 2.81%
116,111
+84,573
+268% +$5.27M
2025 Q3
1 quarter
JBI icon
6
Janus International
JBI
$558M
$6.5M 2.77%
993,145
+516,172
+108% +$4.02M
2025 Q1
3 quarters
PKE icon
7
Park Aerospace
PKE
$572M
$6.4M 2.73%
299,962
-154,680
-34% -$3.08M
2019 Q1
27 quarters
PDFS icon
8
PDF Solutions
PDFS
$1.79B
$6.28M 2.68%
220,022
+13,674
+7% +$378K
2025 Q3
1 quarter
CCC icon
9
CCC Intelligent Solutions
CCC
$4.5B
$6.25M 2.66%
786,127
+532,334
+210% +$4.33M
2025 Q3
1 quarter
MOD icon
10
Modine Manufacturing
MOD
$8.37B
$6.17M 2.63%
46,196
+1,854
+4% +$276K
2025 Q3
1 quarter
AZTA icon
11
Azenta
AZTA
$1.63B
$6.11M 2.6%
183,599
+162,025
+751% +$5.3M
2025 Q3
1 quarter
RRX icon
12
Regal Rexnord
RRX
$10.5B
$6.01M 2.56%
42,836
+6,313
+17% +$898K
2023 Q4
8 quarters
XMTR icon
13
Xometry
XMTR
$5.45B
$6M 2.56%
+100,873
New +$5.69M
2025 Q4
0 quarters
SXT icon
14
Sensient Technologies
SXT
$5.65B
$5.92M 2.53%
63,032
-3,107
-5% -$293K
2025 Q2
2 quarters
RVTY icon
15
Revvity
RVTY
$17B
$5.91M 2.52%
+61,105
New +$5.87M
2025 Q4
0 quarters
XPEL icon
16
XPEL
XPEL
$1.22B
$5.84M 2.49%
+116,949
New +$4.89M
2025 Q4
0 quarters
BIRK icon
17
Birkenstock
BIRK
$5.6B
$5.34M 2.28%
+130,625
New +$5.53M
2025 Q4
0 quarters
AIR icon
18
AAR Corp
AIR
$3.9B
$5.22M 2.22%
+63,009
New +$5.21M
2025 Q4
0 quarters
LASR icon
19
nLIGHT
LASR
$2.07B
$5.22M 2.22%
139,048
-105,066
-43% -$3.51M
2025 Q2
2 quarters
GENI icon
20
Genius Sports
GENI
$1.64B
$5.12M 2.18%
464,560
-234,009
-33% -$2.55M
2025 Q1
3 quarters
NCNO icon
21
nCino
NCNO
$2.08B
$5.1M 2.18%
+199,020
New +$5.05M
2025 Q4
0 quarters
OMCL icon
22
Omnicell
OMCL
$1.61B
$5.07M 2.16%
111,815
+35,432
+46% +$1.3M
2025 Q3
1 quarter
FUL icon
23
H.B. Fuller
FUL
$2.72B
$4.98M 2.13%
+83,821
New +$4.93M
2025 Q4
0 quarters
CERT icon
24
Certara
CERT
$1.43B
$4.96M 2.12%
563,064
+43,288
+8% +$446K
2025 Q1
3 quarters
SITM icon
25
SiTime
SITM
$15.8B
$4.96M 2.11%
+14,036
New +$4.39M
2025 Q4
0 quarters
1
2 3

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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.