The structure of the week
We read the week as a sharp rotation inside a structure that has not yet broken. The S&P 500 (SPY) fell 1.97% on the week, but it is still up 0.20% over four weeks. The Nasdaq 100 (QQQ) took the heavier hit, down 5.52% on the week and 1.61% over four. Small caps (IWM) fell 3.05% and are down 4.81% over the month, so they are not the market's source of strength. The equal-weight S&P 500 (RSP) rose 0.49% on the week and 0.85% over four weeks, which tells us the damage is concentrated in a few heavy groups, not spread evenly. The larger structure in SPY and QQQ still points upward, with price above its longer moving averages. The shorter-term trend line has turned down, though, and the weekly drop has pulled price back toward fair value.
The rotation
The rotation is clear. Oil (USO) led with a 9.15% gain, followed by consumer staples (XLP) at 5.02%, energy (XLE) at 4.86%, retail (XRT) at 3.48% and health care (XLV) at 3.45%. At the bottom sit memory (DRAM) at -18.78%, semiconductors (SOXX) at -11.80%, SMH at -10.53%, cybersecurity (HACK) at -10.45% and nuclear (NLR) at -8.72%. Defensives and energy up, high-beta technology down, is a defensive rotation with a commodity impulse. Treasuries (TLT) rose 2.65%, which fits that read. Gold (GLD) fell 0.67%, so this is not a pure flight to safety. Money is leaving crowded growth, not running for the exits.
One week against four
The comparison of the one-week and four-week moves is the most useful part. Oil, staples, energy and health care rose on both horizons, so their weekly moves continue a monthly trend. The same holds on the downside for memory (-18.78% on the week, -22.08% over four weeks), nuclear (-8.72%, -12.40%) and data centers (DTCR, -7.83%, -8.06%). That is persistent selling, not a one-week shock. Treasuries are the clearest bounce: up 2.65% on the week but still down 1.48% over four weeks. Financials (XLF) rose 1.43% against -0.63% over four weeks, and real estate (XLRE) rose 1.32% against -0.87%. Both read as bounces, not turns. The contradictions on the other side matter more. Software (IGV) fell 7.39% on the week but is flat over four weeks at -0.01%, and cybersecurity fell 10.45% against -1.33%. Those are fresh losses of momentum in groups that had been holding up. The S&P 500 itself turned from +0.20% over four weeks to -1.97% on the week.
The crypto divergence
Crypto lines up with the equity read, but unevenly. Bitcoin (BTC) fell 2.59% on the week and is still up 0.45% over four weeks. The Bitcoin ETF proxy (IBIT) fell 0.86%, against +0.28% over the month. Ether (ETH) fell 5.01% and is down 8.90% over four weeks. Solana (SOL) fell 7.02% and is down 6.93%. Bitcoin is holding its monthly gain while the weaker coins carry the losses, which is the same pattern as in equities: the largest asset holds and the higher-beta names pay.
What would change this read
The read stays valid only while the swing lows hold. For SPY that is the low near 629.28, and for QQQ the low near 661.14. For semiconductors (SOXX) the level is the low near 464.08. A close below any of them would mean the pullback is turning into a change of structure and not a rotation inside an intact trend. We would also treat it as a warning if equal-weight (RSP) turned negative while defensives faded, because that would mean the rest of the market is no longer absorbing the selling in technology. On the other side, a recovery in semiconductors and software would weaken the defensive reading. For Bitcoin, the swing low near 57,747.77 is the level that separates a consolidation from a break.