What are solar flares and why do they matter for investors?

Solar flares are bursts of energy from the Sun that can disturb Earth’s upper atmosphere. They can cause radio outages, GPS disruption, and satellite noise. For investors, that means short‑term operational risks for aviation, ports, telecoms, data centers, and time‑sensitive finance, which can lift volatility and widen trading spreads.

What is the timing risk for Singapore today?

NOAA modeling indicates a possible glancing CME influence late on 5 Feb UTC, which aligns with early 6 Feb Singapore time. That suggests potential disruption from pre‑open through the morning session. If indicators stay moderate by midday, market impact often eases. Keep monitoring official alerts for updates.

Could solar flares cause a power grid impact in Singapore?

Singapore sits near the equator, where geomagnetic storm effects on grids are typically lower than at high latitudes. While widespread outages are unlikely, operators can still face minor disturbances. Utilities may adjust protection settings when alerts rise. Investors should watch for transparent incident reports and regulator communications.

Which sectors on SGX are most exposed to geomagnetic storm risk?

Aviation, marine and port services, telecom operators, satellite service providers, logistics platforms, data centers, and time‑sensitive finance face the most immediate exposure. The chief issue is GPS disruption and radio noise. Resilient firms use backups such as PTP timing, atomic clocks, and multi‑constellation GNSS to reduce impact.

Global Market Insights

February 05: Solar Flares Put GPS, Power Grids at Risk for Markets

ByDanny Kontos February 5, 2026February 5, 2026

Solar flares are back in focus for Singapore markets after multiple X‑class events this week. NOAA modeling suggests a coronal mass ejection may brush Earth late on 5 Feb UTC, which is early 6 Feb SGT. NASA warns these events can disrupt radio, GPS, and electric grids. We explain what matters for local investors, which sectors face the most exposure, the likely timing for Singapore, and the key indicators to watch as geomagnetic storm risk rises.