What happened
The S&P 500 rose 0.72 percent to a record 7,537, while the Dow Jones Industrial Average also closed at an all-time high. Chipmakers led the charge, with Lam Research, Applied Materials and KLA all jumping around 4 percent after analysts raised their price targets.
Why it matters
The S&P 500 tracks 500 of the largest US companies and is a key gauge of global investor confidence. Record highs suggest investors expect solid company profits, and because US shares dominate global funds, gains ripple into portfolios around the world.
Explained simply
Think of the stock market as a giant mood ring for the economy. When investors feel optimistic about future profits, they pay more for shares and the index climbs. Right now the ring is glowing bright, driven by excitement about the companies that make computer chips.
What it means for you
If you hold a global tracker or an S&P 500 fund in your ISA or pension, this rally has quietly boosted your balance. It is a good moment to check you are not overexposed to a single theme like technology, since concentrated rallies can reverse quickly.
