The structure of the week
The week closed higher across almost the whole board, and the structure held. The S&P 500 rose 3.51%, the Nasdaq 100 5.09%, small caps 3.56% and the equal-weight index 2.36%. Price on the broad index sits above its short, intermediate and long moving averages, still stacked in the order they have held through the advance, and the swing low at 629.28 that anchored the last pullback was never revisited. We read an intact upward structure with momentum accelerating rather than a repair job: this week extends a trend already in place instead of rescuing one that was breaking.
The rotation
Leadership came from the high-beta end. Nuclear rose 10.29%, aerospace 9.91%, software 8.57%, cybersecurity 8.08%, semiconductors 7.80% and 7.60% in the two funds we follow, artificial intelligence 7.57% and technology 7.20%. At the other end sat defensives and energy: oil fell 8.66%, energy 3.44%, utilities 1.67% and real estate 0.20%, while staples added a flat 0.08%. That combination is the classic risk-on configuration. Two details temper it: the S&P 500's 3.51% beat the equal-weight 2.36%, so the move is heavier at the top than in the average stock, and high-yield credit added only 0.16% — it did not confirm the enthusiasm.
One week against four
The one-week versus four-week comparison separates trends from bounces. Software is the cleanest continuation, 8.57% on the week on top of 11.12% over four; cybersecurity (8.08% and 5.91%), gold (7.25% and 5.69%) and materials (4.82% and 3.87%) point the same way in both windows. Semiconductors are the opposite case: 7.80% and 7.60% on the week against -4.64% and -6.55% over the month, while memory rose 0.46% and remains down 19.73% over four weeks. Data centers (3.17% and -3.18%), AI (7.57% and -0.14%) and the Nasdaq 100 (5.09% and -0.34%) share that shape — a strong week inside a flat or negative month. That is a bounce, not a turn. The mirror image is energy, down 3.44% after gaining 4.39% over four weeks, oil down 8.66% after 8.54%, and China tech up only 0.60% against 8.64%: momentum draining out of last month's winners.
The crypto divergence
Crypto rose, with far less conviction. Bitcoin added 2.28% on the week and 1.84% over four, ether 1.81% and 6.13%, solana 0.79% against -3.70% over the month, and the listed bitcoin proxy 3.25% and 1.57%. The divergence is structural rather than directional. Where the equity leaders trade above their whole stack of moving averages, bitcoin sits below its intermediate and longer ones, its structure still reads downward and its momentum is closer to oversold than stretched. Crypto is participating in the risk appetite, not leading it, and it has not repaired the prior damage the way software or cybersecurity have.
What would change this read
What would invalidate this read. First, whether semiconductors and AI hold this week's gain: if they give it back while their four-week numbers stay negative, the bounce reading stands and the week's leadership was noise. Second, breadth — the equal-weight index continuing to lag the cap-weighted one, with defensives climbing the table, would turn risk-on into narrowing. Third, the swing low at 629.28: while price holds above it and the moving averages stay in order, the upward structure stands. And credit, at 0.16%, needs to start following equities rather than trailing them.