Maple Rock Capital Partners Inc.

CIK

1658363

Location

Toronto, A6

Portfolio Value

Mid $5,099,994,953

Diversification

Diversified

Filing Date

Global Rank

#734 / 8,700 ▲ 373

Top Industry

Computer Hardware 22.8%

Period ended 2 months ago

Filed Aug 14, 2026 · 30d

26 quarters · since Mar 2020

Portfolio Concentration

51 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

17.0%

+4.7 pts

Top 5

37.2%

−1.6 pts

Top 10

53.0%

−1.4 pts

HHI

514

Diversified+55

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	25.2%	$1,287,271,515	6
Healthcare	24.0%	$1,226,369,276	8
Industrials	15.9%	$813,001,402	10
Basic Materials	15.9%	$809,347,185	11
Consumer Cyclical	12.8%	$653,818,129	12
Consumer Defensive	3.8%	$192,019,668	2
Financial Services	1.7%	$87,311,700	1
Utilities	0.6%	$30,856,078	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
RKT	Rocket Companies, Inc.	+2,410,400	5,543,600	$87,311,700
AAP	Advance Auto Parts Inc	+1,122,900	2,421,040	$150,637,108
ASTL	Algoma Steel Group Inc.	+931,000	16,861,818	$68,290,362
ICLR	Icon PLC	+864,300	1,199,600	$208,382,516
WERN	Werner Enterprises Inc	+812,800	1,366,167	$59,578,542
MT	ArcelorMittal	+776,595	2,190,860	$131,933,589
BKD	Brookdale Senior Living Inc.	+731,000	8,888,148	$143,010,301
CNC	Centene Corp	+725,300	1,381,879	$88,702,813
RUN	Sunrun Inc.	+692,448	3,694,548	$49,433,052
AA	Alcoa Corp	+674,400	1,577,720	$82,262,320
BTI	British American Tobacco p.l.c.	+576,900	2,166,000	$133,772,160
FBIN	Fortune Brands Innovations, Inc.	+510,500	996,282	$54,695,881
NUE	Nucor Corp	+496,788	614,000	$136,768,500
UNH	Unitedhealth Group Inc	+465,700	681,100	$283,085,593
LPX	Louisiana-Pacific Corp	+409,300	1,521,859	$119,709,428
WGO	Winnebago Industries Inc	+389,400	1,559,231	$48,710,376
HUM	Humana Inc	+283,451	628,251	$249,553,862
TPB	Turning Point Brands, Inc.	+250,800	686,800	$58,247,508
CVS	CVS HEALTH Corp	+149,896	1,197,996	$123,932,686
ARCB	Arcbest Corp /Tx/	+131,400	535,746	$76,900,980
ELV	Elevance Health, Inc.	+129,500	191,500	$74,058,795
HCC	Warrior Met Coal, Inc.	+110,500	253,559	$20,578,848
MOH	Molina Healthcare, Inc.	+73,600	243,300	$55,642,710
TFII	TFI International Inc.	+56,578	1,418,409	$203,640,980
XPO	XPO, Inc.	+32,460	352,702	$72,406,193
No positions match the current search.

Trimmed

Positions the filer reduced

8 positions

Ticker	Company	Δ Shares	Shares	Value
CLF	Cleveland-Cliffs Inc.	−17,662,400	3,083,157	$28,950,844
LYFT	Lyft, Inc.	−2,062,352	2,062,351	$30,130,948
EQX	Equinox Gold Corp.	−1,893,400	17,531,248	$170,403,730
JD	JD.com, Inc.	−355,720	2,670,542	$68,045,410
ASO	Academy Sports & Outdoors, Inc.	−253,600	586,400	$27,637,032
STX	Seagate Technology Holdings plc	−232,823	301,162	$290,621,330
SNDK	Sandisk Corp	−164,594	1,906	$4,333,729
WDC	Western Digital Corp	−42,600	1,357,834	$867,275,732
No positions match the current search.

New Positions

Positions the filer opened this quarter

11 positions

Ticker	Company	Shares	Value
SW	Smurfit Westrock plc	2,608,298	$120,659,865
RXO	RXO, Inc.	2,583,655	$71,283,041
FDXF	FedEx Freight Holding Company, Inc.	451,700	$68,206,700
MOS	Mosaic Co	2,680,000	$56,789,200
RMBS	Rambus Inc	342,600	$45,476,724
GPK	Graphic Packaging Holding Co	4,099,800	$43,334,886
TECK	Teck Resources Ltd	718,500	$42,722,010
GM	General Motors Co	499,497	$38,501,228
TLN	Talen Energy Corp	80,300	$30,856,078
AMZN	Amazon Com Inc	108,000	$25,740,720
IP	International Paper Co /New/	284,400	$10,835,640
No positions match the current search.

Sold Out

Positions the filer fully exited

4 positions

Ticker	Company	Shares	Value
GT	Goodyear Tire & Rubber Co /Oh/	5,817,063	$38,567,127
BTG	B2gold Corp	8,158,600	$36,958,458
WHR	Whirlpool Corp /De/	593,200	$31,985,344
CAR	Avis Budget Group, Inc.	92,248	$13,454,370
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

51 tracked positions · $5,099,994,953 total · filing declares 51 positions · $5,100,027,142 · as of Jun 30, 2026

All sectors Basic Materials Consumer Cyclical Consumer Defensive Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 51 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
WDC	Western Digital Corp Technology	Reduced	1,357,834	-42,600	$867,275,732	+129.0%	17.01%
STX	Seagate Technology Holdings plc Technology	Reduced	301,162	-232,823	$290,621,330	+38.9%	5.70%
UNH	Unitedhealth Group Inc Healthcare	Added	681,100	+465,700	$283,085,593	+385.7%	5.55%
HUM	Humana Inc Healthcare	Added	628,251	+283,451	$249,553,862	+317.4%	4.89%
ICLR	Icon PLC Healthcare	Added	1,199,600	+864,300	$208,382,516	+461.6%	4.09%
TFII	TFI International Inc. Industrials	Added	1,418,409	+56,578	$203,640,980	+37.7%	3.99%
EQX	Equinox Gold Corp. Basic Materials	Reduced	17,531,248	-1,893,400	$170,403,730	−39.3%	3.34%
AAP	Advance Auto Parts Inc Consumer Cyclical	Added	2,421,040	+1,122,900	$150,637,108	+120.0%	2.95%
BKD	Brookdale Senior Living Inc. Healthcare	Added	8,888,148	+731,000	$143,010,301	+28.2%	2.80%
NUE	Nucor Corp Basic Materials	Added	614,000	+496,788	$136,768,500	+590.0%	2.68%
BTI	British American Tobacco p.l.c. Consumer Defensive	Added	2,166,000	+576,900	$133,772,160	+44.0%	2.62%
MT	ArcelorMittal Basic Materials	Added	2,190,860	+776,595	$131,933,589	+79.5%	2.59%
CVS	CVS HEALTH Corp Healthcare	Added	1,197,996	+149,896	$123,932,686	+64.6%	2.43%
SW	Smurfit Westrock plc Consumer Cyclical	NEW	2,608,298	NEW	$120,659,865	NEW	2.37%
LPX	Louisiana-Pacific Corp Industrials	Added	1,521,859	+409,300	$119,709,428	+47.9%	2.35%
CNC	Centene Corp Healthcare	Added	1,381,879	+725,300	$88,702,813	+312.6%	1.74%
RKT	Rocket Companies, Inc. Financial Services	Added	5,543,600	+2,410,400	$87,311,700	+95.6%	1.71%
AA	Alcoa Corp Basic Materials	Added	1,577,720	+674,400	$82,262,320	+37.3%	1.61%
ARCB	Arcbest Corp /Tx/ Industrials	Added	535,746	+131,400	$76,900,980	+93.4%	1.51%
ELV	Elevance Health, Inc. Healthcare	Added	191,500	+129,500	$74,058,795	+308.0%	1.45%
XPO	XPO, Inc. Industrials	Added	352,702	+32,460	$72,406,193	+16.2%	1.42%
RXO	RXO, Inc. Industrials	NEW	2,583,655	NEW	$71,283,041	NEW	1.40%
ASTL	Algoma Steel Group Inc. Basic Materials	Added	16,861,818	+931,000	$68,290,362	+3.8%	1.34%
FDXF	FedEx Freight Holding Company, Inc. Industrials	NEW	451,700	NEW	$68,206,700	NEW	1.34%
JD	JD.com, Inc. Consumer Cyclical	Reduced	2,670,542	-355,720	$68,045,410	−24.0%	1.33%
WERN	Werner Enterprises Inc Industrials	Added	1,366,167	+812,800	$59,578,542	+266.1%	1.17%
TPB	Turning Point Brands, Inc. Consumer Defensive	Added	686,800	+250,800	$58,247,508	+53.9%	1.14%
WAB	Westinghouse Air Brake Technologies Corp Industrials	Held	215,400	0	$58,071,840	+7.9%	1.14%
MOS	Mosaic Co Basic Materials	NEW	2,680,000	NEW	$56,789,200	NEW	1.11%
MOH	Molina Healthcare, Inc. Healthcare	Added	243,300	+73,600	$55,642,710	+146.0%	1.09%
FBIN	Fortune Brands Innovations, Inc. Industrials	Added	996,282	+510,500	$54,695,881	+188.9%	1.07%
LKQ	Lkq Corp Consumer Cyclical	Held	2,065,565	0	$54,386,326	−10.4%	1.07%
RUN	Sunrun Inc. Technology	Added	3,694,548	+692,448	$49,433,052	+21.4%	0.97%
WGO	Winnebago Industries Inc Consumer Cyclical	Added	1,559,231	+389,400	$48,710,376	+34.4%	0.96%
RMBS	Rambus Inc Technology	NEW	342,600	NEW	$45,476,724	NEW	0.89%
NGVT	Ingevity Corp Basic Materials	Held	603,303	0	$45,048,635	+4.8%	0.88%
GPK	Graphic Packaging Holding Co Consumer Cyclical	NEW	4,099,800	NEW	$43,334,886	NEW	0.85%
TECK	Teck Resources Ltd Basic Materials	NEW	718,500	NEW	$42,722,010	NEW	0.84%
GM	General Motors Co Consumer Cyclical	NEW	499,497	NEW	$38,501,228	NEW	0.75%
THO	Thor Industries Inc Consumer Cyclical	Held	461,864	0	$34,713,698	−5.9%	0.68%
TLN	Talen Energy Corp Utilities	NEW	80,300	NEW	$30,856,078	NEW	0.61%
LVS	Las Vegas Sands Corp Consumer Cyclical	Held	662,824	0	$30,615,840	−14.3%	0.60%
LYFT	Lyft, Inc. Technology	Reduced	2,062,351	-2,062,352	$30,130,948	−45.1%	0.59%
CLF	Cleveland-Cliffs Inc. Basic Materials	Reduced	3,083,157	-17,662,400	$28,950,844	−83.5%	0.57%
KNX	Knight-Swift Transportation Holdings Inc. Industrials	Held	366,095	0	$28,507,817	+35.2%	0.56%
ASO	Academy Sports & Outdoors, Inc. Consumer Cyclical	Reduced	586,400	-253,600	$27,637,032	−41.7%	0.54%
AMZN	Amazon Com Inc Consumer Cyclical	NEW	108,000	NEW	$25,740,720	NEW	0.50%
RYAM	Rayonier Advanced Materials Inc. Basic Materials	Held	3,256,889	0	$25,599,147	−29.0%	0.50%
HCC	Warrior Met Coal, Inc. Basic Materials	Added	253,559	+110,500	$20,578,848	+54.4%	0.40%
IP	International Paper Co /New/ Consumer Cyclical	NEW	284,400	NEW	$10,835,640	NEW	0.21%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.