Traders assign only a 5.5% implied probability to a magnitude 8.0+ megaquake occurring globally by August 31, 2026, reflecting the extreme rarity of such events and the absence of supporting precursors in the final 15-day window. Official USGS and global catalogs show the strongest 2026 events to date reached only 7.7 (Indonesia, August 14–15) and 7.4 (Colombia), consistent with the typical annual rate of roughly one to two M8+ quakes worldwide. No subduction-zone alerts, foreshock swarms, or model runs from monitoring agencies indicate an imminent rupture on high-risk segments such as the Nankai Trough or Cascadia. While a sudden large foreshock sequence could theoretically trigger a mainshock within days, the short timeframe and lack of elevated seismic energy release make this statistically improbable.