Markets, Business & Tech Briefing: PSI -0.88% to 8,919 on Corpus Christi as Energy Block Drags, BCP €407.5M Buyback Day-One Opens, OT 10-Year Eases to 3.43% Into the 5 June ECB Decision

Thursday, 4 June 2026 — Euronext Lisbon prints a contrarian red close on a thin Corpo de Deus (Corpus Christi) holiday tape as the energy block — EDP Renováveis, EDP and Galp — drags the index lower against a green European session, BCP opens day one of its €407.5 million buyback programme, and Lisbon resets its book ahead of the 5 June ECB Frankfurt decision.

PSI: -0.88% to 8,919.68 on the Corpo de Deus tape — energy block carries the drag against a green European session

The PSI closed Thursday's session at 8,919.68, off -0.88% (-79.62 points) from Wednesday's 8,999.30 finish — the index breaking back below the 9,000 handle after a single-session probe of that level on Wednesday and reverting toward the sub-9,000 band that has framed the post-late-May tape. The session ran on thinner volume as Corpo de Deus (Corpus Christi) sat on the Portuguese public-holiday calendar, with Lisbon trading against a green European tape: the Stoxx 600 and DAX both closed higher as the rest of the bloc ran into the ECB 5 June meeting on a risk-on rotation, leaving the PSI as one of the few major European indices on the red side of the day.

The drag concentrated inside the energy block. EDP Renováveis printed the largest loss at -2.89% to €14.12, giving back the back-end-of-May bounce and walking the stock back toward the €14 handle after the Iberian-renewables tape softened on a weaker European clean-power bid. EDP shed -2.02% to €4.369, with the parent utility carrying the heaviest single-name PSI weight loss on the day. NOS dropped -1.89% to €4.994, dipping under the €5 handle as the telecoms operator continued to digest the €342,000 SIRESP penalty rejection news from Wednesday. Galp Energia eased -1.16% to €19.13 as Brent slipped on the OPEC+ supply read and the integrated-energy desk priced the Rodrigo Vilanova Energy Management Vertical departure announced earlier in the session. The rest of the losers' tape ran shallower: REN -0.72%, Jerónimo Martins -0.56%, Corticeira Amorim -0.31%, Navigator -0.29% and Semapa -0.22%.

The green side of the tape was led by the infrastructure-and-construction complex: Teixeira Duarte printed the top gain at +1.72% to €0.4130, Mota-Engil followed at +1.65% to €4.5640 — extending the late-May rotation higher on the CaixaBI €5.70 price-target support and the Choose France 2026 infrastructure-deal carry. CTT rounded out the top three at +0.85% to €5.9600. BCP ticked +0.22% on day one of its €407.5 million recompra-de-ações (share buyback) programme — the JPMorgan-executed envelope cleared by the 15 May AGM opened its 4 June-to-4 December 2026 window with the first tranche of acquisitions for cancellation against the bank's 15-billion-share capital base. Sonae closed marginally green at +0.21%.

Bonds and FX: OT 10-year eases 1 basis point to 3.43%, PT-Bund spread holds near 41 bps, EUR/USD lifts to $1.1628 into the ECB tape

Portugal's 10-year OT (Obrigações do Tesouro — Treasury Bonds) yield closed at 3.43%, down 1 basis point from Wednesday's print as Lisbon's curve drifted lower on the carry trade into the 5 June Frankfurt ECB decision. Germany's 10-year Bund traded around 3.02%, leaving the PT-Bund spread near 41 basis points, comfortably inside the 40-50 bps working band that has framed the Iberian-periphery tape across the spring window and a measured tightening on Monday's ~46 bps print. The next IGCP (Instituto de Gestão da Tesouraria e do Crédito Público — Public Debt Management Agency) auction sits on the 11 June calendar with the 2026 wholesale-funding envelope already running well past the 60% mark after the €3 billion 20-year sindicada of late May drew an 18-times oversubscription at €54 billion in demand.

On the FX side, the euro printed $1.1628 against the dollar, up +0.26% on the session and reclaiming roughly 30 pips as positioning leaned dovish into the Frankfurt print — the OIS strip still carries a 25-basis-point cut into the deposit-facility rate at the ~80% probability that opened the week, with the swap curve tilting toward an additional 15 basis points of easing into year-end. Euribor 3-month tracks at ~2.23%, the indexation rail that walks both the Certificados de Aforro (Savings Certificates) June reset at the 2.215% base rate and the crédito habitação (mortgage credit) reset clock that millions of Portuguese household balance sheets read directly off Frankfurt's Thursday print.

BCP day-one buyback opens against the European bank-distribution tape — €407.5 million envelope clears 2.84% of capital, JPMorgan executes the 4 June-to-4 December window

The single biggest standalone corporate signal of the day came from Banco Comercial Português (BCP — Commercial Portuguese Bank), which formally launched its €407.5 million share-buyback programme on Thursday morning. The envelope — equivalent to 2.84% of the bank's stock-market capitalisation and up to 1.184 billion shares (~8% of capital) cleared for cancellation by the 15 May 2026 AGM — anchors the 90%-of-profits distribution pledge that CEO Miguel Maya has now framed across two consecutive shareholder cycles. JPMorgan sits on the execution mandate, and the programme runs to 4 December 2026. The launch follows the €344 million ordinary dividend wired on 3 June against the €0.0344 gross-per-share rate from the 7 May AGM, stacking the two distribution legs into a combined ~€750 million cash-return pass through to BCP holders inside a single calendar week. The buyback day-one ticker move — +0.22% on the open against the broader red PSI tape — confirms the technical bid the programme telegraphs across the JPMorgan execution window, with the cancellation-for-capital mechanic the structural read on the bank's per-share earnings line into the 1H26 results due in late July.

Galp executive reshuffle and Air France-KLM TAP push frame the corporate-news flow — Tribunal da Relação Isabel dos Santos ruling closes the Efacec recovery path for BCP, Novobanco and CGD

The day's corporate news tape ran heavy. Galp Energia announced that Rodrigo Vilanova is stepping down from the Energy Management Vertical on family health grounds, leaving the Executive Commission at five members and the Non-Executive Bench picking up Jorge Fernández Vidal. The Vilanova exit is the second senior departure from Galp in eight months and triggers a downstream reshuffle inside the trading-and-supply book that the integrated-energy desks will be watching into the Q2 results.

On the TAP (Transportes Aéreos Portugueses — Portuguese Air Transports) file, Air France-KLM CEO Benjamin Smith called the Portuguese flag carrier the 'final piece' of the group's southern strategy, raising the temperature inside the Parpública (Portuguese State Holdings) privatisation window that closes at the end of July. Lufthansa and IAG (International Airlines Group) remain in the frame for the same envelope, and the price-discovery read across the three bidders sets up a competitive auction tape into the August decision window.

The Tribunal da Relação de Lisboa (Lisbon Court of Appeal) cleared Isabel dos Santos of fraud charges connected to the €160 million Efacec financing arrangement, definitively closing the recovery path for BCP, Novobanco and Caixa Geral de Depósitos (CGD — General Deposit Bank) after the 2020 nationalisation wiped the collateral. The ruling locks in the existing impairment provisions the three banks carry on their respective Efacec lines, with no further claw-back leg in play, and removes a longstanding contingent-liability tail from the Portuguese banking system's credit ledger.

The Tribunal Constitucional (Constitutional Court) separately overturned the Supremo Tribunal Administrativo (Supreme Administrative Court) ruling on the Imposto Único de Circulação (IUC — Unified Vehicle Tax), restoring the rebuttable presumption for former vehicle owners — the decision shakes loose Autoridade Tributária (Tax Authority) billing positions and gives previous keepers a route to prove the sale through a counter-evidence path, an administrative-law reset that ripples across the used-car market and the IUC collection envelope.

Finally, the Autoridade da Concorrência (AdC — Competition Authority) fined Grupo Multimoto €729,000 for coordinating resale prices and blocking dealers from carrying rival motorcycle brands, the latest of the AdC's vertical-restraints enforcement actions inside the Portuguese automotive-distribution stack.

Outlook — Friday 5 June reads the Lagarde ECB tape, OT 10-year sets the EUR-rates carry, BCP buyback day-two stacks the JPMorgan execution line

Outlook: Friday 5 June opens with the Frankfurt ECB Governing Council monetary-policy decision and the Christine Lagarde press conference as the unambiguous Lisbon driver — the OIS strip still carries the 25-basis-point deposit-facility cut at the ~80% probability mark, and the Portuguese curve will read the Euribor 3-month and crédito habitação reset clocks directly off the press-conference tone. The OT 10-year at 3.43% sits inside the dovish bid, the PT-Bund spread at ~41 bps holds the periphery-carry trade comfortably bid, and the EUR/USD at $1.1628 walks into the press conference with the dovish-pricing tail already inside the spot. On the equity side, BCP day-two buyback stacks against the European bank-distribution tape, and the test for the PSI sits on whether the energy block can stabilise the EDP-EDPR-Galp complex back above the day's lows on a co-operative European tape. A re-bid through 9,000 Friday will need both the Frankfurt decision and a stable euro-rates strip.

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