Alibaba tumbles on earnings miss as Tesla robotaxi win and Cloudflare agent surge lift AI stocks

Alibaba Group Holding Ltd. slid 8.6 pct after a fiscal first-quarter earnings miss revealed AI capital spending running 4.5 times faster than new cloud revenue growth, while Tesla Inc. surged 5.1 pct on Nevada's approval of 5,000 robotaxi permits for Las Vegas and Cloudflare Inc. gained 5.1 pct after reporting that AI-agent traffic had crossed half of all network volume. The S&P 500 closed up 0.43 pct to 7,674, the Nasdaq Composite added 0.43 pct, and the SOXX semiconductor ETF slipped 0.44 pct as the week's bond volatility eased into Friday's session.

Top AI stocks today: August 21, 2026

Alibaba slides on profit miss as AI spending outpaces cloud gains

Alibaba Group Holding Ltd. (NYSE: BABA) fell 8.6 pct to $119.34, its sharpest single-session drop in months, after fiscal Q1 2027 results showed adjusted earnings per ADS of $1.26, down 42 pct year over year and well below the $1.85 Wall Street consensus, per Benzinga. Cloud revenue rose 45 pct, the fastest pace in 22 quarters, yet AI capital expenditure is running at 4.5 times the rate of new cloud revenue growth, a ratio that spooked investors who had expected the AI buildout to begin generating visible returns. StartupHub.ai data shows 91,616 companies tracked in our global database, and among the AI cloud and infrastructure names in that universe, the gap between AI capital spending and near-term cloud payoff is a recurring pattern across both public hyperscalers and private names. The market's read: aggressive infrastructure spending is consuming cash faster than cloud contract wins can offset, and Alibaba's management will need to narrow that gap visibly to restore confidence.

Tesla gains on Nevada robotaxi clearance and European Semi push

Tesla Inc. (NASDAQ: TSLA) gained 5.1 pct to $362.86, notching its third consecutive weekly gain, after Nevada regulators approved up to 5,000 Tesla robotaxis for operation in Las Vegas, per the Motley Fool. The same week, TSLA announced plans to showcase its electric Semi truck at the IAA Transportation show in Hannover, Germany, in September, signaling a serious push into Europe's commercial-vehicle market. CEO Elon Musk stated that he expects Tesla to outperform Wall Street's five-year revenue forecast. The Nevada permit is a volume deployment clearance, not a limited pilot, and places Tesla's autonomous fleet on a commercial timeline ahead of most competitor schedules.

Cloudflare crosses the AI-agent traffic threshold

Cloudflare Inc. (NYSE: NET) rose 5.1 pct to $293.14 after reporting second-quarter results above expectations and raising full-year top-line guidance. The headline figure: non-human and AI-agent traffic has surpassed 50 pct of total network volume, a milestone that positions Cloudflare as foundational infrastructure for the agentic AI wave. The company sits at the intersection of AI inference delivery and zero-trust security, two of the highest-conviction enterprise IT spending categories in 2026. NET is up 49.6 pct year to date and remains a top name on AI stocks to watch lists for investors seeking AI-agent infrastructure exposure without direct chip-sector concentration.

Notable but quieter

SoundHound AI Inc. (NASDAQ: SOUN) added 5.0 pct to $7.32 on elevated retail volume, extending voice-AI momentum. Snowflake Inc. (NYSE: SNOW) gained 3.6 pct to $332.78, up 24 pct over the past month on AI data-platform spending tailwinds. Palantir Technologies Inc. (NYSE: PLTR) rose 3.4 pct to $179.94 and is now up 46.4 pct over the trailing 30 days, one of the strongest mid-cap runs among top 2026 AI stocks. On the downside, Arm Holdings plc (NASDAQ: ARM) dropped 3.0 pct to $243.32, extending a 10.4 pct five-day slide with no fresh catalyst. CoreWeave Inc. (NASDAQ: CRWV) fell 2.1 pct to $87.85, pulling back from a 22 pct one-month gain as investors reassess AI infrastructure buildout pacing. Intel Corp. (NASDAQ: INTC) slid 2.2 pct to $90.07, continuing a 13 pct five-day decline despite a year-to-date gain of 128.7 pct.

What are the top AI stocks to buy in August 2026?

Across hardware, hyperscale cloud, and enterprise SaaS, the consensus top AI stocks in August 2026 include NVIDIA Corp. (NVDA), Broadcom Inc. (AVGO), and Taiwan Semiconductor Manufacturing Co. (TSM) on the hardware side; Microsoft Corp. (MSFT) and Alphabet Inc. (GOOGL) for hyperscale AI infrastructure; and Palantir Technologies (PLTR) and Oracle Corp. (ORCL) for enterprise AI software. Wall Street's 2026 focus has shifted from training-cluster buildout to inference delivery, AI-agent monetization, and autonomous deployment, reshuffling which names lead each session. NVIDIA's Q2 FY27 earnings on August 26 are the next major catalyst for the entire top AI stocks 2026 universe.

Core watchlist

Chips

NVIDIA (NVDA): -1.0 pct on heavy volume (91.6M shares); institutional positioning ahead of the Aug 26 Q2 print, consensus $93-95B revenue, Blackwell ramp the number to watch. AMD (AMD): +0.8 pct on normal volume; down 6.5 pct over five days but up 111.8 pct year to date, AI chip stocks leadership remains intact. Broadcom (AVGO): +1.2 pct on light volume; custom silicon and networking are the thesis; next catalyst is the fiscal Q3 print. Taiwan Semiconductor (TSM): +0.7 pct on normal volume; steady as the NVDA foundry anchor; the TSMC supply relationship is central context for the Aug 26 earnings report.

Hyperscalers

Microsoft (MSFT): +0.4 pct on normal volume; Azure AI demand remains the multi-quarter carrier; next catalyst is Q1 FY27 earnings in late October. Alphabet (GOOGL): +1.2 pct on normal volume; holding post-Q2 gains despite the $205B capex hike overhang. Meta (META): +0.8 pct on normal volume; a Magnificent 7 AI stocks laggard on a YTD basis (-15.5 pct) due to capex concerns that mirror today's Alibaba story. Amazon (AMZN): -0.6 pct on normal volume; AWS momentum intact, stock digesting post-Q2 gains.

Enterprise SaaS

Oracle (ORCL): +3.1 pct to $146.47 on above-average volume; one of the stronger enterprise AI stocks moves today, recovering from recent weakness on Japan sovereign cloud tailwinds. Salesforce (CRM): +1.8 pct; Agentforce ARR above $1B is the thesis; up 9.5 pct over five sessions. ServiceNow (NOW): -1.0 pct on above-average volume; workflow-AI agent rollout remains the carrier; next print Q3, Oct 29. monday.com (MNDY): -0.6 pct on light volume; mondayAI suite expansion the narrative; down 36.7 pct year to date.

Vol / retail

Palantir (PLTR): covered in notable movers above. Tesla (TSLA): covered in top movers above. Snowflake (SNOW): covered in notable movers above.

What to watch next week

NVIDIA Corp. reports Q2 FY27 earnings on Wednesday, August 26, after the market close. Wall Street consensus sits at $93-95 billion in revenue, roughly 96 pct year-over-year growth driven by Blackwell ramp; any guide above or below that range will reset multiples across the entire AI chip stocks universe. The Jackson Hole Economic Symposium runs August 27-29, with Fed Chair Kevin Warsh delivering his keynote on August 28; any September rate signal will reprice rate-sensitive tech positions. These two events make the week of August 24 the most consequential stretch for best AI stocks 2026 since the Q2 earnings season began.

Not investment advice.