The U.S. stock market has been a bit on edge lately— all three major indices closed lower across the board. The S&P 500 fell by 0.43%, the Nasdaq dropped 0.92%, and the Dow Jones was even worse, down 1.05% directly. It looks like investors’ risk appetite vanished all at once today, with a full-blown sell-off underway.

I took a closer look, and there are actually several factors at play behind this drop. First, inflation data is coming back to stir things up again; the producer price report shows there is still pressure in the pipeline, so the market starts to reprice expectations for the Federal Reserve’s policy. On top of that, Treasury yields are climbing— with the 10-year yield rising— which directly makes bonds more attractive relative to stocks. Over in geopolitics, things are also getting messy; worries about supply chain disruptions have resurfaced.

From a sector perspective, tech stocks were hit the hardest, with semiconductor and software companies dragging down the Nasdaq. Financials also had it rough, as banks fell alongside the flattening yield curve. Meanwhile, defensive sectors such as utilities and consumer staples held up relatively better— that’s a classic risk-avoidance pattern. Trading volume also exceeded the 30-day average, suggesting this sell-off is driven by conviction, not random dumping.

What’s interesting is that the decline in U.S. stocks isn’t an isolated event— markets in Europe and Asia are opening lower as well. The U.S. dollar also strengthened, adding pressure to multinational companies; when overseas earnings are converted back, they lose value.

But from a historical perspective, a pullback of this magnitude is actually normal in a long-term bull market. The S&P 500’s historical average intra-year decline is about 14%, and today’s losses are still within the range of normal fluctuations. The VIX fear index surged, reflecting rising option premiums and the market’s expectations of near-term volatility. Most analysts believe this looks more like a recalibration than a major reversal.

Experienced traders usually view this kind of pullback as a healthy correction— one that can reset valuations and set the stage for future buying opportunities. The key is what happens with the upcoming economic data and corporate earnings reports, because only then can you decide whether this is a buying opportunity or a warning signal. Overall, today’s performance in the U.S. stock market is a reminder that volatility is part of investing, and long-term investors shouldn’t be spooked by a single day’s moves.