Deutsche Bank strategists note that the S&P 500 reached a three-week high as chip stocks rebounded, led by gains in the Philly semiconductor index and Broadcom after its expanded Apple partnership. However, most S&P 500 constituents declined, suggesting the rally was narrow, while renewed selling in Asian tech raises the risk of a reversal.

Chip rally lifts index despite weak breadth

"Before all that, markets put in a decent performance yesterday, with a generally quiet session as the US reopened after the holiday. On paper the headlines were pretty decent, with the S&P 500 (+0.72%) hitting a 3-week high thanks to a rebound in chip stocks, closing back within 1% of its record high."

"But under the surface, things weren’t quite as robust as they seemed. For instance, most of the S&P’s constituents actually fell on the day, as it was primarily the chip rally that lifted the index higher. Moreover, some of that US strength was just a post holiday catch-up to last Friday’s global performance. So over in Europe (which was open on Friday), the STOXX 600 fell -0.35% instead, and the 10yr bund yield (+1.3bps) rose as well. "

"Whilst rates were subdued, things were a bit more eventful on the equity side, with the Philly semiconductor index (+2.17%) recovering after last week’s decline. That included a decent gain for Broadcom (+3.73%), which followed the news that they’d be partnering with Apple (+1.31%) on developing new custom chips, with an expanded partnership that will now go through 2031."

"One theme in the pack is how astonishing moves in the South Korean equity market have been over the last year. This morning the extreme volatility continues with the KOSPI down -8.03%, with Samsung Electronics -9.3% lower, despite reporting a 19-fold increase in quarterly profit."

"The other KOSPI heavyweight SK Hynix is down -10.0% following the official launch of the marketing process for its planned US listing. Other tech heavy Asian markets are also lower with the Nikkei down -1.84%."

"Nasdaq futures are -1.03%, dragging the S&P equivalent -0.30% lower too. Elsewhere, the CSI and the Shanghai Composite are -0.83% and -1.04% respectively. Additionally, the Hang Seng (-0.42%) and the S&P/ASX 200 (-0.44%) are trading moderately lower."

(This article was created with the help of an Artificial Intelligence tool and reviewed by an editor. Know more.)