What Happened Today

The S&P 500 — a benchmark of 500 large American companies — rose 0.72% on July 6, 2026, closing at 7,537.26. That's near the day's high, showing steady buying throughout the session, per Investing.com. The gain was modest and stable, which is often a good sign: buyers remained in control from open to close.

Australia's main stock index moved the opposite direction, declining 0.15%, per CNBC. That's a small move, but worth noting because it shows not all markets moved in sync.

SpaceX Is Being Added to a Major Stock Index

The big structural event was the approval of SpaceX's addition to the Nasdaq-100 — a basket of 100 large technology and growth companies. This becomes effective before the market opens on July 7. When a stock is added to a major index, it creates automatic buying pressure.

Here's why: large investment funds are designed to track these indexes exactly. If a new company joins the index, these funds must buy its stock immediately to match the index composition. Funds tracking the Nasdaq-100 manage hundreds of billions of dollars collectively, so this forced buying is substantial. Think of it like a restaurant adding a new dish to its menu — every customer who comes in asking for "what's on the menu" now gets that new dish whether or not they specifically wanted it.

The question investors are watching: Has SpaceX's stock price already jumped in anticipation of this buying, or will it move more significantly when the index rebalancing actually happens on July 7?

Two Chip Stocks, Two Very Different Stories

Intel (INTC) had a rough two weeks. Its stock hit an all-time high of $140.94 on June 22, then tumbled: down to $128.71 by June 26, a drop of nearly 10%, per Intel's own historical data. When a stock shoots to new highs and then pulls back sharply, it often means the price got ahead of where most buyers were comfortable. Without established price levels below to support it, sellers can push it down more easily.

Micron (MU) is a different story. It closed at $975.56 on July 2, after trading as low as $103.38 just one year earlier — a gain of nearly 12 times the original price, per Macrotrends. That explosion happened because companies building artificial intelligence systems need enormous amounts of memory chips, and Micron is one of the few companies supplying them.

On the surface, Micron's current valuation looks reasonable. The stock trades at 22.73 times current annual earnings, per Google Finance, which sounds modest compared to many technology stocks. But there's a catch: those earnings are inflated because of temporary high demand for AI chips. If that demand normalizes, Micron's earnings will likely fall, making the stock look expensive in hindsight.

There's another risk to watch. Micron has a "beta" of 2.14, which means when the overall stock market declines, Micron typically falls more than twice as far, per Google Finance. If something shakes investor confidence — an interest rate shock, weaker company earnings, or a geopolitical crisis affecting chip supplies — Micron would get hit hard. With a market value of $1.1 trillion and 53,000 employees, Micron has become critical infrastructure for artificial intelligence, not just a single company.

Intel is in a turnaround: new leadership, new manufacturing plans, new hope. But shareholders want to see real profits, not just promises. Micron, by contrast, is already printing profits from AI demand — the question is whether that continues.

The week ahead matters. SpaceX starts trading inside the Nasdaq-100, major technology and AI companies will report quarterly earnings, and any economic news affecting interest rates could shake markets. The S&P 500's steady performance on July 6 — buyers held prices up, no panic selling — is a decent sign. But history shows that markets can feel calm right before they move sharply.