Premarket movers Boeing falls on software glitch; Kodiak surges

Investing.com - U.S. stock index futures slipped on Monday as an unexpected halt in frontier artificial intelligence development and rising crude oil prices prompted traders to trim exposure to risk assets ahead of a pivotal week for economic data.

By 05:45 a.m. ET (09:45 GMT), Nasdaq 100 futures had fallen 1% to 30,574.50, while S&P 500 futures were down 0.5% at 7,706. Dow Jones Industrial Average futures slipped 0.4%, pointing to a weaker Wall Street open after a turbulent week that saw benchmark Treasury yields surge to multi-decade peaks.

Here are some of the biggest premarket U.S. stock movers today:

Boeing shares fell 1.9% after The Wall Street Journal reported that the planemaker had identified a software glitch on its 737 MAX that can disable an automated navigation function during a landing following a missed approach.

The issue emerged after a cockpit software update and can occur when pilots alter their planned flight path following a missed approach. In certain circumstances, pilots may have to fly manually without some autopilot functions at low altitude, according to the report. The issue has prompted concerns among industry officials and a review by U.S. regulators.

Kodiak Sciences surged 31.9% in premarket trading after the company released topline results from its pivotal DAYBREAK Phase 3 study, which is evaluating two investigational therapies, Zenkuda (tarcocimab tedromer) and KSI-501 (tabirafusp alfa tedromer), in patients with wet age-related macular degeneration.

The company was due to host a webcast at 8:30 a.m. ET to present the findings. The strong premarket move indicated that the data met or exceeded the study’s primary endpoint of non-inferiority in visual acuity gains compared with the active comparator aflibercept. The trial is particularly important for Kodiak because it evaluates two distinct drug candidates within a single registrational study, potentially providing separate commercial opportunities from the same clinical readout.

Roblox fell 4% in premarket trading after Jefferies downgraded the stock to Underperform from Hold and cut its price target to $38.

The firm argued that Roblox’s roughly 30% rally following its second-quarter earnings had priced in an overly optimistic outlook for bookings over the next 12 months. Jefferies expects user and monetization growth in the U.S. and Canada to recover more slowly and at a higher cost than investors currently anticipate.

The analysts also pointed to UCAN daily active users peaking at around 26 million in late 2025, driven in part by viral content with high churn, as evidence that sustainable engagement gains remain difficult. The downgrade comes amid broader concerns about Roblox’s monetization prospects and ongoing legal risks, including a recent court ruling allowing an L.A. County child exploitation lawsuit to proceed.

Circle Internet Group fell 3.5% after the company announced that Chief Financial Officer Jeremy Fox-Geen plans to step down after more than five years in the role.

Fox-Geen will remain through the end of December 2026 to support the transition while Circle searches for a successor with the help of an executive search firm. The announcement came after Circle shares had already pulled back during Friday’s session following a strong run fueled by several recent catalysts, including Binance’s $100 million equity investment and a new five-year USDC distribution agreement announced on Sept. 22.

The shares had also benefited from strong initial metrics for the Arc network presented at the Autonomous 2026 symposium on Sept. 23. With those catalysts increasingly priced into the stock, the lack of a fresh near-term trigger left the shares vulnerable to further profit-taking. A Form 4 insider filing from Sept. 24 added another modest overhang.

Original Article

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