Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — ARCBEST CORP /TX/

Accession: 0001104659-26-105900

Filed: 2026-09-08

Period: 2026-09-08

CIK: 0000894405

SIC: 4213 (TRUCKING (NO LOCAL))

Item: Regulation FD Disclosure

Documents

8-K — arcb-20260908x8k.htm (Primary)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: arcb-20260908x8k.htm · Sequence: 1

ARCBEST CORPORATION_September 8, 2026

0000894405false00008944052026-09-082026-09-08

June 30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 8, 2026 (September 8, 2026)

ARCBEST CORPORATION

(Exact name of registrant as specified in its charter)

Texas

0-19969

71-0673405

(State or other jurisdiction of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

8401 McClure Drive

Fort Smith, Arkansas

(Address of principal executive offices)

72916

(Zip Code)

Registrant’s telephone number, including area code: (479) 785-6000

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions.

Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock $0.01 Par Value

ARCB

Nasdaq

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

ITEM 7.01 – REGULATION FD DISCLOSURE

ArcBest® (Nasdaq: ARCB) is providing an update on the most recent information related to its third quarter 2026 financial results and business trends.

Summary Operating and Financial Impacts

● Statistics for August 2026 are preliminary but are not expected to differ materially from actual results.

● July 2026 and July 2025 each included 22.0 workdays.

● August 2026 and August 2025 each included 21.0 workdays.

● The third quarter to date reflects the period from July 1 through August 31, 2026, compared to the same period in 2025.

Asset-Based Operating Segment

Year-over-Year Business Trends

July 2026

August 2026

QTD 2026

Billed Revenue(1) / Day

+7.7

%

+9

%

+8

%

Tonnage / Day

+8.1

%

+9

%

+9

%

Shipments / Day

-3.3

%

-4

%

-4

%

Billed Revenue(1) / Shipment

+11.4

%

+14

%

+13

%

Billed Revenue(1) / CWT

-0.4

%

flat

flat

Weight / Shipment

+11.8

%

+14

%

+13

%

1) Revenue for undelivered freight is deferred for financial statement purposes in accordance with the Asset-Based segment revenue recognition policy. Billed revenue has not been adjusted for the portion of revenue deferred for financial statement purposes.

In August, Asset-Based daily tonnage increased 9% year-over-year, driven by a 14% increase in weight per shipment and partially offset by a 4% decrease in shipments per day. The higher weight per shipment continues to reflect changes in freight profile.

Billed revenue per shipment increased 14% year-over-year, primarily reflecting the heavier freight profile, while billed revenue per hundredweight remained flat. Excluding fuel surcharge, revenue per hundredweight declined in the low single digits, primarily due to changes in freight profile.

Compared with July, shipments per day in August were relatively unchanged, while weight per shipment and tonnage per day each declined 3%. Billed revenue per shipment declined approximately 1%, primarily reflecting the lower weight per shipment, partially offset by a 2% increase in billed revenue per hundredweight.

From 2016 through 2025, ABF’s non-GAAP operating ratio generally remained consistent from the second quarter to the third quarter. This trend excludes 2020, which was significantly affected by the COVID-19 pandemic, and 2023, which was significantly affected by the bankruptcy of a major LTL competitor. This analysis is based on non-GAAP operating ratio and excludes the items identified in the Company's historical non-GAAP reconciliations included in previously furnished earnings releases.

Based on current trends, the Company expects ABF’s non-GAAP operating ratio for the third quarter of 2026 to be generally consistent with its non-GAAP operating ratio for the second quarter of 2026. The Company does not currently expect a significant difference between GAAP and non-GAAP operating ratios for the third quarter of 2026.

Asset-Light Operating Segment

Business Trends

July 2026

August 2026

QTD 2026

Revenue / Day (Year-over-Year)

+27.0

%

+26

%

+27

%

Shipments / Day (Year-over-Year)

+6.8

%

flat

+4

%

Revenue / Shipment (Year-over-Year)

+18.9

%

+26

%

+22

%

Purchased Transportation Expense as a % of Revenue

85.6

%

85

%

85

%

In August, Asset-Light daily revenue increased approximately 26% year over year, driven by a 26% increase in revenue per shipment with consistent shipments per day. Higher revenue per shipment reflects a stronger pricing environment, including the effects of higher fuel surcharge revenue and tightening truckload market capacity.

Compared with July, Asset-Light daily revenue increased approximately 5%, driven by a 3% increase in revenue per shipment and a 1% increase in shipments per day.

For the third quarter 2026, the Company expects Asset-Light GAAP operating income of $8 million to $10 million. Excluding approximately $2 million of purchase accounting amortization, the Company expects Asset-Light non-GAAP operating income of $10 million to $12 million. This outlook reflects continued yield discipline and ongoing productivity improvements across the business.

The following is a “safe harbor” statement under the Private Securities Litigation Reform Act of 1995: Certain statements and information in this report may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including, among others, statements regarding (i) our expectations about our intrinsic value or our prospects for growth and value creation and (ii) our financial outlook, position, strategies, goals, and expectations. Terms such as “anticipate,” “believe,” “could,” “designed,” “estimate,” “expect,” “forecast,” “foresee,” “intend,” “likely,” “may,” “plan,” “predict,” “project,” “scheduled,” “seek,” “should,” “would,” and similar expressions and the negatives of such terms are intended to identify forward-looking statements. These statements are based on management’s beliefs, assumptions, and expectations based on currently available information, are not guarantees of future performance, and involve certain risks and uncertainties (some of which are beyond our control). Although we believe that the expectations reflected in these forward-looking statements are reasonable as and when made, we cannot provide assurance that our expectations will prove to be correct and caution the reader not to place undue reliance on our forward-looking statements. Actual outcomes and results could materially differ from what is expressed, implied, or forecasted in these statements due to a number of factors, including, but not limited to: data breaches, cybersecurity incidents, and/or interruptions or failures of our information systems that we depend on, including software programs and applications provided by third parties; untimely or ineffective development and implementation of, or failure to realize the potential benefits associated with, new or enhanced technology or processes; the loss or reduction of business from multiple large customers or an overall reduction in our customer base; the timing and performance of growth initiatives and the ability to manage our cost structure; the cost, integration, and performance of future acquisitions and the inability to realize the anticipated benefits of the acquisition; unsolicited takeover proposals, proxy contests, and other proposals or actions by activist investors; maintaining our corporate reputation and intellectual property rights; failure to achieve market acceptance or generate adequate returns through our Vaux® technologies; establishing and maintaining adequate internal controls over financial reporting; disruptions in domestic or global manufacturing activity, supply chains, and related changes in spending, resulting in material reductions in freight volumes; competitive initiatives and pricing pressures; increased prices for and decreased availability of equipment, including new revenue equipment, and higher costs of equipment-related operating expenses such as maintenance, fuel, and related taxes; availability of fuel, the effect of volatility in fuel prices and the associated changes in fuel surcharges on securing increases in base freight rates, and the inability to collect fuel surcharges; relationships with employees, including unions, and our ability to attract, retain, and upskill employees; unfavorable terms of, or the inability to reach agreement on, future collective bargaining agreements or a workforce stoppage by our employees covered under ABF Freight’s collective bargaining agreement; union employee wages and benefits, including changes in required contributions to multiemployer plans; availability and cost of reliable third-party services; our ability to secure independent owner-operators and/or operational or regulatory issues related to our use of their services; litigation or claims asserted against us; the effects, costs and potential liabilities related to changes in and compliance with, or violation of, existing or future governmental laws and regulations, including, but not limited to, environmental laws and regulations, such as emissions-control regulations and fuel efficiency regulations; default on covenants of financing arrangements and the availability and terms of future financing arrangements; our ability to generate sufficient cash from operations to support significant ongoing capital expenditure requirements and other business initiatives; self-insurance claims, insurance premium costs, and loss of our ability to self-insure; potential impairment of long-lived assets and goodwill and intangible assets; external events which may adversely affect us or the third parties who provide services for us, for which our business continuity plans may not adequately prepare us, including, but not limited to, the occurrence of natural disasters, public health crises, geopolitical conflicts, acts of terrorism or war, cybersecurity incidents, or trade restrictions; general economic conditions and related shifts in market demand that impact the performance and needs of industries we serve and/or limit our customers’ access to adequate financial resources; seasonal fluctuations, adverse weather conditions, natural disasters, and climate change; and other financial, operational, and legal risks and uncertainties detailed from time to time in ArcBest Corporation’s public filings with the Securities and Exchange Commission (“SEC”).

For additional information regarding known material factors that could cause our actual results to differ from those expressed in these forward-looking statements, please see our filings with the SEC, including our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K.

Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statements after the date they are made, whether as a result of new information, future events, or otherwise.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Se

ARCBEST CORPORATION

(Registrant)

Date:

September 8, 2026

/s/ J. Brent Hagy

J. Brent Hagy

Chief Legal Officer and Corporate Secretary

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 6

v3.26.1

Document and Entity Information

Sep. 08, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

Sep. 08, 2026

Entity Registrant Name

ARCBEST CORPORATION

Entity Incorporation, State or Country Code

TX

Entity File Number

0-19969

Entity Tax Identification Number

71-0673405

Entity Address, Address Line One

8401 McClure Drive

Entity Address, City or Town

Fort Smith

Entity Address, State or Province

AR

Entity Address, Postal Zip Code

72916

City Area Code

479

Local Phone Number

785-6000

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock $0.01 Par Value

Trading Symbol

ARCB

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

Entity Central Index Key

0000894405

Amendment Flag

false

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration