US Stocks | Intraday Fast Report | August 18

⏰ 10:32am ET | 10:32pm Beijing | Live intraday

【All three major indexes turn green to red, Nasdaq leads the decline】
- S&P 500: 7,709.59 (-0.98%)
- Dow Jones: 53,414.10 (-0.59%)
- Nasdaq: 26,367.17 (-1.35%)
- VIX fear index spikes to 15.80 (+10.88%), risk sentiment heats up

【The worst scene so far: Tech stocks get hit across the board】
- Meta plunges 7.22% ($547.24) — biggest intraday laggard; market worries about uncertainty in the AI capex high spending and returns
- AMD drops 6.30% ($481.97) — semiconductor sector leads the selloff
- Broadcom -3.50%, Microsoft -2.98%, Nvidia -2.21%
- Apple bucking the trend +1.29% ($309.88), becoming the only bright spot among tech stocks

【Sector rotation】
- Semiconductors SOXX -3.23%, Tech XLK -2.07% — AI valuations at high levels pressured by interest rates
- Energy XLE +2.49% — a rebound in oil prices becomes a safe haven
- Biotech XBI +1.36% — defensive capital rotates in

【Key logic behind the selloff】
Long-term U.S. Treasury yields jump higher; tech/AI stocks, which are most sensitive to rates, are hit first. The combination of high valuations and high capex is disliked when the discount rate rises. Companies like AMD and Meta, which “burn cash to buy growth,” face the biggest pressure.

【Capital flows】
After the open, risk appetite clearly deteriorates; funds move from tech into defensive areas like energy and biotech. VIX up 10.88% on the day indicates the options market is stepping up hedging.

【Crypto reaction: moves stronger in reverse, decouples from U.S. stocks】
- BTC: $64,770 (+1.81%) — IBIT ETF +3.05%, MSTR +4.21%, strong follow-through
- ETH: $1,915.73 (+0.88%)
- SOL: $77.08 (+1.94%)
The crypto market today completely ignores the selloff in U.S. stocks and trades independently to the upside. This suggests the current crypto rally is not driven by a simple “risk-on” mood, but by independent positioning on a long-term narrative.

【Close outlook】
With the three major indexes already clearly weakening versus the open—Nasdaq down 1.35% is not exactly small. If there’s no strong dip-buying support this afternoon, the odds favor closing broadly lower. Key to watch:
1. Whether Meta can stabilize — determines tech sentiment
2. Whether semiconductors can stop falling — determines Nasdaq’s quality
3. The direction of long-duration Treasury yields — determines whether the root cause of today’s selloff persists

【Overnight outlook for crypto】
If U.S. stocks continue to drift lower tonight, BTC—already up 1.81% intraday—faces pressure for a pullback. However, signals of decoupling between crypto and U.S. stocks have already appeared, and the probability of the trend continuing is higher. The real risk point is tomorrow’s pre-market CPI/economic data: if the data keeps pushing rate expectations higher, crypto may be forced to sell off too.
Watch whether BTC can hold the $64,000 level—this is the key support tonight.

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