2026 Q2 Portfolio Activity
In 2026 Q2, Maple Rock Capital Partners Inc. maintained a portfolio of 55 distinct positions. The most significant new addition was SMURFIT WESTROCK PLC, now representing 2.37% of the total fund value. They heavily accumulated shares in UNITEDHEALTH GROUP INC, increasing the position by 216.2%. The fund also reduced its exposure to CLEVELAND-CLIFFS INC NEW by 85.1%.
Position History
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Total Positions
55
Quarter
2026 Q2
Top Holding
WDC (17.0%)
Top 10 Concentration
53.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 55
Maple Rock Capital Partners Inc. Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
WDC
WESTERN DIGITAL...
|
Technology | 17.01% | 12.32% |
#1
Prev: #1
|
6.5 |
—
|
-42,600 | -3.0% |
P
S
|
1,357,834 | $867,275,732 |
$41.62
+965.2%
|
2016 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
STX
SEAGATE TECHNOL...
|
Technology | 5.70% | 6.81% |
#2
1
Prev: #3
|
3.8 |
—
|
-232,823 | -43.6% |
P
S
|
301,162 | $290,621,330 |
$113.41
+648.9%
|
2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
UNH
UNITEDHEALTH GR...
|
Healthcare | 5.55% | 1.90% |
#3
16
Prev: #19
|
6.2 |
—
|
465,700 | 216.2% |
P
S
|
681,100 | $283,085,593 |
$374.66
+6.0%
|
2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
HUM
HUMANA INC
|
Healthcare | 4.89% | 1.95% |
#4
14
Prev: #18
|
5.5 |
—
|
283,451 | 82.2% |
P
S
|
628,251 | $249,553,862 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ICLR
ICON PUB LTD CO
|
Healthcare | 4.09% | 1.21% |
#5
24
Prev: #29
|
5.1 |
—
|
864,300 | 257.8% |
P
S
|
1,199,600 | $208,382,516 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TFII
TFI INTERNATION...
|
Industrials | 3.99% | 4.81% |
#6
1
Prev: #5
|
2.1 |
—
|
56,578 | 4.2% |
P
S
|
1,418,409 | $203,640,980 | 2021 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
EQX
EQUINOX GOLD CO...
|
Basic Materials | 3.34% | 9.14% |
#7
5
Prev: #2
|
1.8 |
—
|
-1,893,400 | -9.7% |
P
S
|
17,531,248 | $170,435,907 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AAP
ADVANCE AUTO PA...
|
Consumer Cyclical | 2.95% | 2.23% |
#8
5
Prev: #13
|
4.2 |
—
|
1,122,900 | 86.5% |
P
S
|
2,421,040 | $150,637,109 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
BKD
BROOKDALE SR LI...
|
Healthcare | 2.80% | 3.63% |
#9
3
Prev: #6
|
3.1 |
—
|
731,000 | 9.0% |
P
S
|
8,888,148 | $143,010,301 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NUE
NUCOR CORP
|
Basic Materials | 2.68% | 0.64% |
#10
29
Prev: #39
|
4.1 |
—
|
496,788 | 423.8% |
P
S
|
614,000 | $136,768,500 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
BTI
BRITISH AMERN T...
|
Consumer Defensive | 2.62% | 3.02% |
#11
3
Prev: #8
|
3.5 |
—
|
576,900 | 36.3% |
P
S
|
2,166,000 | $133,772,160 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MT
ARCELORMITTAL S...
|
Basic Materials | 2.59% | 2.39% |
#12
Prev: #12
|
4.0 |
—
|
776,595 | 54.9% |
P
S
|
2,190,860 | $131,933,589 | 2021 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CVS
CVS HEALTH CORP
|
Healthcare | 2.43% | 2.45% |
#13
2
Prev: #11
|
3.0 |
—
|
149,896 | 14.3% |
P
S
|
1,197,996 | $123,932,686 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SW
SMURFIT WESTROC...
|
Consumer Cyclical | 2.37% | — |
#14
Prev: #—
|
4.4 |
—
|
2,608,298 | — |
NEW
|
2,608,298 | $120,659,865 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LPX
LOUISIANA PAC C...
|
Industrials | 2.35% | 2.63% |
#15
5
Prev: #10
|
3.4 |
—
|
409,300 | 36.8% |
P
S
|
1,521,859 | $119,709,429 | 2023 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CNC
CENTENE CORP DE...
|
Healthcare | 1.74% | 0.70% |
#16
21
Prev: #37
|
3.7 |
—
|
725,300 | 110.5% |
P
S
|
1,381,879 | $88,702,813 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RKT
ROCKET COS INC
|
Financial Services | 1.71% | 1.45% |
#17
6
Prev: #23
|
3.7 |
—
|
2,410,400 | 76.9% |
P
S
|
5,543,600 | $87,311,700 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AA
ALCOA CORP
|
Basic Materials | 1.61% | 1.95% |
#18
1
Prev: #17
|
3.6 |
—
|
674,400 | 74.7% |
P
S
|
1,577,720 | $82,262,321 | 2017 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ARCB
ARCBEST CORP
|
Industrials | 1.51% | 1.29% |
#19
7
Prev: #26
|
3.1 |
—
|
131,400 | 32.5% |
P
S
|
535,746 | $76,900,981 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ELV
ELEVANCE HEALTH...
|
Healthcare | 1.45% | 0.59% |
#20
21
Prev: #41
|
3.6 |
—
|
129,500 | 208.9% |
P
S
|
191,500 | $74,058,795 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
XPO
XPO INC
|
Industrials | 1.42% | 2.03% |
#21
6
Prev: #15
|
2.6 |
—
|
32,460 | 10.1% |
P
S
|
352,702 | $72,406,194 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RXO
RXO INC
|
Industrials | 1.40% | — |
#22
Prev: #—
|
4.1 |
—
|
2,583,655 | — |
NEW
|
2,583,655 | $71,283,041 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ASTL
ALGOMA STL GROU...
|
Basic Materials | 1.34% | 2.14% |
#23
9
Prev: #14
|
2.5 |
—
|
931,000 | 5.8% |
P
S
|
16,861,818 | $68,290,363 | 2021 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
N/A
FEDEX FGHT HLDG...
|
|
Unknown | 1.34% | — |
#24
Prev: #—
|
4.0 |
—
|
451,700 | — |
NEW
|
451,700 | $68,206,700 | — | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
JD
JD.COM INC
|
Consumer Cyclical | 1.33% | 2.91% |
#25
16
Prev: #9
|
1.0 |
—
|
-355,720 | -11.8% |
P
S
|
2,670,542 | $68,045,410 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WERN
WERNER ENTERPRI...
|
Industrials | 1.17% | 0.53% |
#26
16
Prev: #42
|
3.5 |
—
|
812,800 | 146.9% |
P
S
|
1,366,167 | $59,578,543 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TPB
TURNING PT BRAN...
|
Consumer Defensive | 1.14% | 1.23% |
#27
1
Prev: #28
|
3.5 |
—
|
250,800 | 57.5% |
P
S
|
686,800 | $58,247,508 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WAB
WABTEC
|
Industrials | 1.14% | 1.75% |
#28
7
Prev: #21
|
1.5 |
—
|
no change | no change |
P
S
|
215,400 | $58,071,840 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MOS
MOSAIC CO
|
Basic Materials | 1.11% | — |
#29
Prev: #—
|
3.9 |
—
|
2,680,000 | — |
NEW
|
2,680,000 | $56,789,200 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MOH
MOLINA HEALTHCA...
|
Healthcare | 1.09% | 0.74% |
#30
6
Prev: #36
|
2.9 |
—
|
73,600 | 43.4% |
P
S
|
243,300 | $55,642,710 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FBIN
FORTUNE BRANDS ...
|
Industrials | 1.07% | 0.62% |
#31
9
Prev: #40
|
3.4 |
—
|
510,500 | 105.1% |
P
S
|
996,282 | $54,695,882 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LKQ
LKQ CORP
|
Consumer Cyclical | 1.07% | 1.97% |
#32
16
Prev: #16
|
1.4 |
—
|
no change | no change |
P
S
|
2,065,565 | $54,386,326 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RUN
SUNRUN INC
|
Technology | 0.97% | 1.32% |
#33
8
Prev: #25
|
2.9 |
—
|
692,448 | 23.1% |
P
S
|
3,694,548 | $49,433,052 | 2023 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WGO
WINNEBAGO INDS ...
|
Consumer Cyclical | 0.96% | 1.18% |
#34
2
Prev: #32
|
2.9 |
—
|
389,400 | 33.3% |
P
S
|
1,559,231 | $48,710,376 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RMBS
RAMBUS INC DEL
|
Technology | 0.89% | — |
#35
Prev: #—
|
3.9 |
—
|
342,600 | — |
NEW
|
342,600 | $45,476,724 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NGVT
INGEVITY CORP
|
Basic Materials | 0.88% | 1.40% |
#36
12
Prev: #24
|
1.4 |
—
|
no change | no change |
P
S
|
603,303 | $45,048,635 | 2016 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GPK
GRAPHIC PACKAGI...
|
Consumer Cyclical | 0.85% | — |
#37
Prev: #—
|
3.8 |
—
|
4,099,800 | — |
NEW
|
4,099,800 | $43,334,886 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TECK
TECK RESOURCES ...
|
Basic Materials | 0.84% | — |
#38
Prev: #—
|
3.8 |
—
|
718,500 | — |
NEW
|
718,500 | $42,722,010 | 2020 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GM
GENERAL MTRS CO
|
Consumer Cyclical | 0.75% | — |
#39
Prev: #—
|
3.8 |
—
|
499,497 | — |
NEW
|
499,497 | $38,501,229 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
THO
THOR INDS INC
|
Consumer Cyclical | 0.68% | 1.20% |
#40
9
Prev: #31
|
1.3 |
—
|
no change | no change |
P
S
|
461,864 | $34,713,698 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TLN
TALEN ENERGY CO...
|
Utilities | 0.61% | — |
#41
Prev: #—
|
3.7 |
—
|
80,300 | — |
NEW
|
80,300 | $30,856,078 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LVS
LAS VEGAS SANDS...
|
Consumer Cyclical | 0.60% | 1.16% |
#42
8
Prev: #34
|
1.2 |
—
|
no change | no change |
P
S
|
662,824 | $30,615,841 | 2022 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LYFT
LYFT INC
|
Technology | 0.59% | 1.78% |
#43
23
Prev: #20
|
0.2 |
—
|
-2,062,352 | -50.0% |
P
S
|
2,062,351 | $30,130,948 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CLF
CLEVELAND-CLIFF...
|
Basic Materials | 0.57% | 5.70% |
#44
40
Prev: #4
|
0.2 |
—
|
-17,662,400 | -85.1% |
P
S
|
3,083,157 | $28,950,844 | 2021 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
KNX
KNIGHT-SWIFT TR...
|
Industrials | 0.56% | 0.69% |
#45
7
Prev: #38
|
1.2 |
—
|
no change | no change |
P
S
|
366,095 | $28,507,818 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ASO
ACADEMY SPORTS ...
|
Consumer Cyclical | 0.54% | 1.54% |
#46
24
Prev: #22
|
0.2 |
—
|
-253,600 | -30.2% |
P
S
|
586,400 | $27,637,032 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 0.50% | — |
#47
Prev: #—
|
3.7 |
—
|
108,000 | — |
NEW
|
108,000 | $25,740,720 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RYAM
RAYONIER ADVANC...
|
Basic Materials | 0.50% | 1.17% |
#48
15
Prev: #33
|
1.2 |
—
|
no change | no change |
P
S
|
3,256,889 | $25,599,148 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
HCC
WARRIOR MET COA...
|
Basic Materials | 0.40% | 0.43% |
#49
5
Prev: #44
|
3.2 |
—
|
110,500 | 77.2% |
P
S
|
253,559 | $20,578,848 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
IP
INTERNATIONAL P...
|
Consumer Cyclical | 0.21% | — |
#50
Prev: #—
|
3.6 |
—
|
284,400 | — |
NEW
|
284,400 | $10,835,640 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 |
Showing 1-50 of 55 holdings