S&P Dow Jones Indices Announces Changes to the S&P/TSX Composite Index
Shell PLC (LON: SHEL) and ARC Resources Ltd. (ARX) have agreed to merge, with ARC Resources shares to be exchanged for Shell shares and cash. The deal, approved by shareholders and regulators, is expected to close on September 2, 2026, leading to ARC Resources' delisting and removal from the S&P/TSX Composite Index.
How this was made

The 30-second read
Why it matters
The merger removes ARC Resources from the S&P/TSX Composite, potentially shifting index weightings and affecting related ETFs.
Market read
The deal is a material M&A event for two listed energy companies, affecting index composition and sector dynamics.
What to watch
Regulatory approvals in other jurisdictions and integration costs could affect the ultimate value creation.
Background
The announcement follows regulatory and shareholder approvals for the merger, with the transaction set to close on Sep 2, 2026.
Ticker impact
Shell PLC announced a cash‑and‑stock merger with ARC Resources, exchanging each ARC share for 0.40247 Shell shares and CAD $8.20 cash.
Shell may see modest upside from expanded upstream assets; ARC shareholders will receive cash and Shell stock.
The deal is approved by shareholders and regulators and includes a cash component, indicating a tangible value transfer.
ARC Resources will be acquired by Shell, with its shares exchanged for Shell stock and cash, and will be delisted after closing on Sep 2, 2026.
ARC stock will cease trading; holders should convert positions to Shell shares or cash.
The transaction terms are definitive and the delisting is imminent, creating a clear action for investors.
Market effects
Energy sector consolidation may tighten supply dynamics and affect peer valuations.
Canadian energy index will lose ARC Resources; US energy index gains exposure to ARC assets via Shell.
Large‑cap Shell's acquisition signals continued M&A activity in the global oil & gas sector.
Counterpoint
Deal may overvalue ARC's assets given volatile oil prices; investors could question the cash premium.
Key entities
- CompanyShell PLC
Global integrated energy company acquiring ARC Resources.
- CompanyARC Resources Ltd.
Canadian upstream oil and gas producer being acquired.
- OrganizationS&P Dow Jones Indices
Provider of the S&P/TSX Composite Index.



