Announcement Regarding the Opening Price of All 116,071,386 Common Shares Issued and Outstanding by Star Bulk Carriers Corp. (the “Company”) on the Main Market of the Regulated Securities Market of Euronext Athens

Star Bulk Carriers announced an opening price of €27.05 for its common shares on Euronext Athens, equivalent to its Nasdaq closing price of $31.21 on September 15, 2026 using the ECB EUR/USD reference rate. The shares will trade in Athens under ticker SBLK and ISIN MHY8162K2046. The announcement is primarily a cross-listing/trading commencement update, with the company noting potential operational and technical risks affecting cross-border and Euronext Athens trading.

Analysis

The Athens line is principally a market-structure event, not an earnings catalyst. The relevant near-term opportunity is temporary dislocation between Nasdaq-listed SBLK and the Athens line after adjusting for EUR/USD, local settlement costs, borrow availability, custody restrictions, and any fungibility delay; these frictions can keep apparent parity gaps open longer than a standard dual-listing arbitrage model implies. The initial opening reference should not be treated as a valuation signal or as incremental capital formation.

For SBLK, the potentially useful 1-3 month effect is a broader European/Greece-based investor base and less dependence on U.S. trading hours, but only if daily Athens turnover becomes material relative to Nasdaq volume. Otherwise, fragmented liquidity can widen effective spreads and raise volatility around dry-bulk-rate moves rather than support a higher multiple. NDAQ has no identifiable revenue sensitivity, while ENX's benefit is likely immaterial unless the venue generates sustained incremental trading, clearing, market-data, and custody activity.

The contrarian point is that cross-listings are often framed as liquidity accretive, yet small secondary venues can initially attract price-insensitive local flow while reducing displayed depth in the primary line. A persistent premium in Athens would be an execution opportunity, not evidence of improved fundamentals; it should close once transfer mechanics and institutional access normalize. Thesis is falsified if the shares are not readily fungible, Athens turnover remains de minimis, or FX-adjusted parity gaps cannot be captured after all-in transaction costs.

Key Decisions for Investors

• No directional position in NDAQ or ENX on this announcement; monitor venue-reported incremental turnover and post-trade economics over the next 30-60 trading days before attributing any revenue impact.
• Place an execution alert on SBLK for a sustained FX-adjusted Athens/Nasdaq premium or discount exceeding 3-5% after estimated custody, borrow, conversion, and settlement costs. Pursue only a market-neutral cross-listing arbitrage after confirming share fungibility and local short-sale/transfer mechanics.
• For existing SBLK exposure, use the first 2-4 weeks of Athens trading as a liquidity monitor rather than a reason to change dry-bulk beta. Reduce any position added solely on a dual-listing narrative if Athens average daily value traded remains below roughly 5% of consolidated SBLK trading or parity spreads widen.
• Watch EUR/USD volatility and any operational notices on cross-border settlement: a technical disruption can create temporary price gaps but also turns a low-risk arbitrage into an unhedged settlement and FX-risk position.