HALLSTATT ADVISORS L.P. Quant / Systematic

Location: New York, NY

CIK: 0002040638 · Show all filings

Period: Q2 2026 (← Previous)

Filing Date: Aug 4, 2026

Total Value: $142M (100.0% shares, 0.0% debt)

Holdings (13)

New Positions (2)

APH AMPHENOL CORP CL A 8.1%

Value $11.46M Shares 64,975 Est. Cost $176.32 Unrealized —

ATS ATS CORPORATION 1.7%

Value $2.391M Shares 83,020 Est. Cost $28.80 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
APH	AMPHENOL CORP CL A	64,975	$11.46M	8.1%	$176.32	—	Common Stock	032095101
ATS	ATS CORPORATION	83,020	$2.391M	1.7%	$28.80	—	Common Stock	00217Y104

Increased Positions (5)

CWST CASELLA WASTE SYS INC CL A 12.9%

Value $18.38M (+40.1%) Shares 189,527 (+14.6%) Est. Cost $94.31 Unrealized —

SEI SOLARIS ENERGY INFRAS INC COM CL A 8.3%

Value $11.82M (+74.0%) Shares 146,907 (+22.2%) Est. Cost $58.02 Unrealized —

CTRI CENTURI HOLDINGS INC COM SHS 8.6%

Value $12.15M (+45.6%) Shares 401,715 (+40.6%) Est. Cost $24.63 Unrealized —

VST VISTRA CORP 9.1%

Value $12.92M (+24.4%) Shares 81,444 (+17.9%) Est. Cost $162.49 Unrealized —

TEL TE CONNECTIVITY PLC ORD SHS 9.5%

Value $13.42M (+21.3%) Shares 66,564 (+25.8%) Est. Cost $224.84 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
CWST	CASELLA WASTE SYS INC CL A	189,527 (+14.6%)	$18.38M (+40.1%)	12.9%	$94.31	—	Common Stock	147448104
SEI	SOLARIS ENERGY INFRAS INC COM CL A	146,907 (+22.2%)	$11.82M (+74.0%)	8.3%	$58.02	—	Common Stock	83418M103
CTRI	CENTURI HOLDINGS INC COM SHS	401,715 (+40.6%)	$12.15M (+45.6%)	8.6%	$24.63	—	Common Stock	155923105
VST	VISTRA CORP	81,444 (+17.9%)	$12.92M (+24.4%)	9.1%	$162.49	—	Common Stock	92840M102
TEL	TE CONNECTIVITY PLC ORD SHS	66,564 (+25.8%)	$13.42M (+21.3%)	9.5%	$224.84	—	Common Stock	G87052109

Exited Positions (4)

BDC BELDEN INC 5.0%

Value $7.071M Shares 61,576 Est. Cost $128.68 Unrealized —

MRVL MARVELL TECHNOLOGY INC 4.9%

Value $6.916M Shares 69,828 Est. Cost $87.46 Unrealized —

AER AERCAP HOLDINGS NV 1.0%

Value $1.377M Shares 10,040 Est. Cost $132.45 Unrealized —

SMERY SIEMENS ENERGY AG SPON ADS 1 ORD 0.3%

Value $359K Shares 2,125 Est. Cost $168.72 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
BDC	BELDEN INC	61,576	$7.071M	5.0%	$128.68	—	—	077454106
MRVL	MARVELL TECHNOLOGY INC	69,828	$6.916M	4.9%	$87.46	—	—	573874104
AER	AERCAP HOLDINGS NV	10,040	$1.377M	1.0%	$132.45	—	—	N00985106
SMERY	SIEMENS ENERGY AG SPON ADS 1 ORD	2,125	$359K	0.3%	$168.72	—	—	82621A203

Decreased Positions (4)

GFL GFL ENVIRONMENTAL INC SUB VTG SHS 6.9%

Value $9.793M (-26.5%) Shares 266,189 (-16.6%) Est. Cost $43.98 Unrealized —

EXP EAGLE MATLS INC 3.6%

Value $5.054M (-28.5%) Shares 22,463 (-39.8%) Est. Cost $220.63 Unrealized —

CLH CLEAN HARBORS INC 8.4%

Value $11.93M (-9.8%) Shares 39,917 (-13.4%) Est. Cost $228.49 Unrealized —

MT ARCELORMITTAL SA LUXEMBOURG NY REGISTRY SH 2.7%

Value $3.851M (+6.6%) Shares 63,949 (-8.0%) Est. Cost $45.57 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
GFL	GFL ENVIRONMENTAL INC SUB VTG SHS	266,189 (-16.6%)	$9.793M (-26.5%)	6.9%	$43.98	—	Common Stock	36168Q104
EXP	EAGLE MATLS INC	22,463 (-39.8%)	$5.054M (-28.5%)	3.6%	$220.63	—	Common Stock	26969P108
CLH	CLEAN HARBORS INC	39,917 (-13.4%)	$11.93M (-9.8%)	8.4%	$228.49	—	Common Stock	184496107
MT	ARCELORMITTAL SA LUXEMBOURG NY REGISTRY SH	63,949 (-8.0%)	$3.851M (+6.6%)	2.7%	$45.57	—	Common Stock	03938L203

Unchanged Positions (2)

GVA GRANITE CONSTR INC 14.8%

Value $20.94M Shares 132,484 Est. Cost $107.45 Unrealized —

SECYF SECURE WASTE INFRASTRUCTU CORP 5.5%

Value $7.832M Shares 501,743 Est. Cost $12.99 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
GVA	GRANITE CONSTR INC	132,484	$20.94M	14.8%	$107.45	—	Common Stock	387328107
SECYF	SECURE WASTE INFRASTRUCTU CORP	501,743	$7.832M	5.5%	$12.99	—	Common Stock	813921103