Software stocks delivered their second-best monthly performance since 2002 in August, leaving chip equities and the broader market far behind as investors rotated out of physical AI infrastructure and into application-layer software names. The iShares Expanded Tech-Software Sector ETF (IGV) surged over 16% for the month, while the iShares Semiconductor ETF (SOXX) finished up only 1%, barely holding onto gains after giving back most of a nearly 10% mid-month rally in the final two weeks of August.

Market Context

The S&P 500 gained just over 2.5% for August, providing a baseline that software stocks dramatically outperformed. The divergence between application software and semiconductor hardware was even more pronounced when examining what analysts call the physical AI trade — electrical equipment, power infrastructure, networking gear, and construction names that had surged into mid-August before rolling over together in the back half of the month. While chips were stumbling, software kept pushing higher through August's final weeks, extending a record divergence between the two groups that was already opening earlier in the month.

Analysis

The outperformance wasn't concentrated in a handful of names — it was broad-based and extreme. Atlassian (TEAM) nearly doubled for its best month ever, while Palantir (PLTR) jumped more than 50%. Salesforce (CRM) surged over 40% in its strongest monthly performance since 2005, ServiceNow (NOW) gained over 30%, and CrowdStrike (CRWD) rose more than 20%. The rally reflected institutional rotation away from the physical AI infrastructure trade that had dominated earlier in the year, with fund managers apparently concluding that software applications offer better risk-reward as capital expenditure cycles for chips and hardware potentially peak. Since August 17, 58 of 61 semiconductor stocks in a Yahoo Finance basket fell, wiping roughly $1.1 trillion from the group's market value — a stark reminder of how quickly sentiment can shift in momentum-driven trades.

Key Numbers

- IGV (iShares Expanded Tech-Software Sector ETF): +16% in August

- SOXX (iShares Semiconductor ETF): +1% in August, down from nearly +10% mid-month

- S&P 500: +2.5% for the month

- Atlassian (TEAM): ~+100%, best month ever

- Palantir (PLTR): +50%+

- Salesforce (CRM): +40%+, best month since 2005

- ServiceNow (NOW): +30%+

- CrowdStrike (CRWD): +20%+

- Semiconductor stocks declining since Aug. 17: 58 of 61 names

- Market cap wiped from semiconductors since mid-August: ~$1.1 trillion

What to Watch

September historically presents tougher seasonal conditions for software equities, and the subhead's warning about 'historically tougher seasonal headwinds' could now face its first test after August's explosive gains. Traders should monitor whether momentum fades as profit-taking emerges following TEAM's near-doubling and CRM's best monthly performance since 2005. Upcoming earnings reports from the highlighted names—TEAM, PLTR, CRM, NOW, and CRWD—could serve as critical inflection points to validate or undercut August's move higher. Any guidance misses on SaaS metrics or forward-looking revenue could quickly reverse the software rotation that has powered IGV's 16% surge. For IGV, watch whether the ETF can hold its August breakout level above prior resistance; a failure to consolidate gains in the first two weeks of September may invite technical selling. SOXX, meanwhile, faces key support around its August close after giving back nearly all of its mid-month rally—the $580–$600 zone could prove pivotal for chip equities attempting stabilization. Scheduled macro events in September—including Federal Reserve communications and any policy signals tied to technology sector allocations—could accelerate rotation trades either way, particularly if economic data shifts expectations for AI capex spending cycles that underpin both software demand and semiconductor orders.