by Jason Bodner
September 9, 2025
We’ve all heard the pilot say something like this. “Fasten your seat belts, folks. Things might get bumpy.”
Don’t worry when your flight shakes you up a bit. Airplanes are built to withstand a level of turbulence far greater than we might imagine. The wings of a modern jet can bend 30 feet without breaking, flexing with the wind like a bird’s feathers. So, when the cabin rattles and drinks spill, the plane will keep flying.
Markets are not so different. Volatility may feel terrifying in the moment, but beneath the surface lies a firm structure and resilience. And just like seasoned pilots know that air turbulence is normal on certain routes, seasoned investors know that the route through September often brings added market turmoil.
Graphs are for illustrative and discussion purposes only. Please read important disclosures at the end of this commentary.
Since 1990, September has been the weakest month for stocks. That fact can unnerve investors already conditioned by gloomy headlines. Negative seasonality layered on top of scary news can spook even the steadiest hand. But when we strip away fear and look at the data, this September is off to a hot start.
As the monthly data reveals (above), August also has a weak seasonal profile, yet the S&P 500 gained nearly 2% in August. Those gains nudged the Big Money Index higher, from a low of 66.2 to 68.9.
The post 9-9-25: September May Surprise Us – Just Like August Did appeared first on Navellier.
