ServiceNow surged 6.5% Wednesday after its AI agent products crossed $1 billion in annualized contract value, leading a narrow enterprise-software rally as the Philadelphia Semiconductor Index tumbled 2.2% and AI chip stocks sold off across the board. The S&P 500 added 0.21% to 7,707.98 and the Nasdaq Composite gained 0.16% to 26,331.09, snapping a three-day losing streak after the US Treasury said it would increase buybacks of long-dated bonds, pulling the 10-year yield five basis points lower to 4.65%.
StartupHub.ai data shows the 11 chip and semiconductor-equipment names in our AI tracking universe averaged a 3.8% decline on August 19, while the four enterprise-SaaS stocks we follow averaged a 3.9% gain, a spread of 7.7 percentage points that marks one of the sharpest single-session software-versus-hardware divergences recorded in the group this year.
Top AI stocks today: August 19, 2026
| Ticker | Close | Day | 1mo | YTD |
|---|---|---|---|---|
| $NOW | $127.20 | +6.45% | +33.25% | -13.73% |
| $CRM | $206.09 | +5.07% | +26.44% | -18.74% |
| $TSLA | $351.12 | +4.23% | -6.12% | -19.85% |
| $AMZN | $265.84 | +2.46% | +8.57% | +17.37% |
| $PLTR | $175.19 | +2.13% | +40.64% | +4.37% |
| $ACMR | $77.59 | -8.04% | -13.32% | +72.88% |
| $OUST | $40.06 | -6.82% | +3.09% | +71.42% |
| $DELL | $437.55 | -6.64% | -0.96% | +242.37% |
| $LRCX | $307.17 | -6.33% | -3.80% | +65.98% |
| $TER | $379.65 | -6.09% | +2.76% | +82.91% |
ServiceNow surges 6.5% as AI agent revenue crosses $1 billion
ServiceNow Inc. (NYSE: NOW) closed at $127.20, up 6.5% on 22.4 million shares. Q2 2026 subscription revenue grew 25% year over year to $3.88 billion and current remaining performance obligations rose 21% to $13.2 billion. The number that moved the tape: Now Assist AI products crossed $1 billion in annualized contract value, with net new AI bookings accelerating more than 40% sequentially and deal counts climbing more than 50% quarter over quarter, per the Motley Fool. CEO Bill McDermott told analysts that every business process in every industry is "being refactored for agentic AI." Among the top AI stocks to watch in August 2026, NOW's agent-led booking acceleration stands out as the clearest monetization inflection in the enterprise-software space. The stock has rebounded more than 54% from its 2026 lows, per Yahoo Finance.
Salesforce climbs 5.1% as Agentforce monetization takes hold
Salesforce Inc. (NYSE: CRM) added 5.1% to $206.09 on heavy volume, with its one-month gain of 26.4% the strongest in our large-cap enterprise-software cohort. Investors are pricing in meaningful Agentforce autonomous-AI platform revenue within the next two to three fiscal quarters, placing CRM among the most-cited best AI stocks to buy for the remainder of 2026. Next formal catalyst: Q2 fiscal 2027 earnings.
ACM Research drops 8% despite raised guidance
ACM Research Inc. (NASDAQ: ACMR) fell 8.0% to $77.59 on 1.1 million shares, the session's biggest percentage loser despite solid fundamentals. Q2 revenue of $292.9 million came in 36% above the year-earlier quarter, with a 45.7% earnings-per-share surprise and first-half orders up 105%, per its SEC 8-K filing. The company raised the low end of full-year revenue guidance to $1.13 billion. Morgan Stanley analyst Charlie Chan lifted his price target to $130 from $90 with an Overweight rating; Craig-Hallum raised its target to $100 from $81. The sell-off reflects institutional trimming of AI chip stocks ahead of Nvidia's August 26 print, when the sector gets its next major directional read. ACMR remains up 72.9% year to date.