Today's stock movers: PCG, EIX drop; RBLX, CRWD, TSLA, SLB rise; earnings later

Important points for equity traders today.

• PCG and EIX: The decline is driven by a repricing of regulatory risk rather than a typical utility sector drop. PCG, in overnight activity, has fallen more than 27% from its peak yesterday and will be closely monitored.
• RBLX: Fresh user-engagement figures are contradicting the company's previously cautious guidance.
• CRWD: Robust earnings and expansion in AI-security are sustaining its upward momentum.
• TSLA: The price action is fueled by robotaxi and Full Self-Driving expectations rather than near-term vehicle sales or margins.
• SLB: Rising oil prices and an acquisition in data-center cooling offer two distinct catalysts.
• AMZN: A fresh lawsuit targeting advertising practices casts doubt on a key profit center for Amazon.

What is behind the decline in PCG and Edison International?

PG&E (PCG) and Edison International (EIX) have dropped approximately 20%-23% following the failure of California wildfire legislation to offer the liability protections previously anticipated by utility investors. Downgrades from analysts have intensified the sell-off.

This move is best interpreted as a repricing of regulatory risk. Rather than merely revising expectations for electricity demand or interest rates, investors are now re-evaluating the legal and financial liabilities these utilities may bear in the event of future wildfires.

The key question now is whether the initial decline will stabilize once forced selling and analyst downgrades are fully absorbed. Further weakness would indicate that investors view the legislation as having fundamentally altered the companies' long-term risk outlook.

Roblox climbs after operating data contradicts low expectations.

Roblox (RBLX) has risen roughly 7% after new user-engagement figures indicated that Q3 bookings may surpass the company's self-provided guidance.

The takeaway is that guidance is not fixed. When fresh operating data conflicts with a cautious forecast, investors may have to rapidly adjust their projections.

Traders should monitor whether the rally persists during full US market liquidity. Sustained gains would suggest that investors see the engagement improvement as significant rather than a one-time data anomaly.

CrowdStrike continues its post-earnings advance.

CrowdStrike (CRWD) is up approximately 6%, extending its post-earnings rally driven by solid results, raised guidance, and new AI-security offerings and collaborations.

CrowdStrike also provides an interesting contrast within the AI theme. Investors are viewing it as a likely AI beneficiary rather than a software company at risk from AI disruption.

The next challenge is whether the stock can maintain its post-earnings momentum amid elevated Treasury yields. Continued relative strength in that climate would reinforce the company-specific narrative.

Tesla rallies on robotaxi and Full Self-Driving expectations.

Tesla (TSLA) has gained about 5.5%, as focus shifts back to Full Self-Driving, robotaxis, and the upcoming Cybercab event.

This move appears to be mainly a narrative and expectations catalyst, rather than a sign of significant improvement in near-term vehicle deliveries or margins.

That does not render the move insignificant, but it alters what traders should follow. The rally may continue to be reactive to product announcements, event expectations, and social-media news. Thus, traders should separate excitement about Tesla's future mobility platform from developments in its current automotive business.

SLB benefits from oil strength and AI infrastructure exposure.

SLB is climbing roughly 5% after disclosing a $4.1 billion acquisition that broadens its involvement in data-center cooling.

The acquisition provides SLB with a rare blend of energy and AI infrastructure exposure. Data centers need more advanced cooling systems, while rising oil prices are concurrently brightening the outlook for conventional energy firms.

This positions SLB as one of the day's more notable cross-theme movers. Traders should observe whether the market keeps rewarding the acquisition beyond the initial announcement, particularly with Brent crude still above $91.

Amazon confronts a new advertising challenge.

Amazon (AMZN) has fallen about 2.5%-3% after the Federal Trade Commission and 22 states filed a lawsuit accusing the company of manipulating advertising auctions.

The percentage drop is smaller than that of the California utilities, but the matter warrants attention because advertising has become one of Amazon's fastest-growing and most profitable segments.

The key question is whether investors will view the lawsuit as a manageable legal cost or start to apply a larger regulatory discount to Amazon's advertising valuation.

Why the macro environment remains important.

Brent crude is trading above $91, and the US 10-year Treasury yield is around 4.78%. Rising oil prices are rekindling inflation worries, and markets are now pricing in a higher likelihood of a Federal Reserve rate hike in September.

This combination can weigh on expensive growth stocks by boosting the returns available from bonds and increasing the discount rate applied to future corporate earnings.

In this context, the gains in RBLX, CRWD, and TSLA are more telling. Stocks that rise while yields go up may possess unusually powerful company-specific momentum. SLB has a more direct benefit because higher oil strengthens its traditional operations while the deal adds an AI-infrastructure element.

Traders monitoring the broader tech landscape can also examine key confirmation levels for Nasdaq futures.

Here is a practical watchlist of stock movers.

• PCG and EIX: Monitor whether the regulatory-driven selloff starts to stabilize or extends to a further decline.
• RBLX: Seek indications that the bookings-fueled rally can persist through the entire US trading session.
• CRWD: Watch if the post-earnings and AI-security momentum can endure in the more challenging interest-rate environment.
• TSLA: Anticipate sensitivity to robotaxi, Full Self-Driving, and Cybercab headlines rather than solely vehicle fundamentals.
• SLB: Look for follow-through from both the acquisition and sustained oil strength.
• AMZN: Observe whether the advertising lawsuit stays contained or starts to influence investor valuation of the business.

The main takeaway is that not all big stock moves are the same. Regulatory repricing, operating-data surprises, earnings momentum, product narratives, acquisitions, and lawsuits can lead to very different future patterns. Traders should first identify the catalyst, then observe if price action confirms that investors still find it relevant after the initial reaction.

Which earnings stocks should traders monitor today?

The day's stock market story is not over. Several major companies are set to post earnings, with the after-hours batch providing a key test for cybersecurity, AI infrastructure, and enterprise software.

Options-implied moves indicate the approximate price changes currently priced into options. They do not forecast whether a stock will go up or down.

Stocks to watch during the day.

Medtronic (MDT): Medtech and healthcare demand. Options pricing suggests a move of roughly 5%. Traders can observe if the results bolster the argument for healthcare as a defensive earnings sector. Unusual options activity before the report adds intrigue but does not indicate the direction of the move.

NIO (NIO): China EV growth versus profitability. Options imply a move of around 9.7%. NIO has posted strong delivery growth, but the key issue is whether higher sales volumes are generating sufficient margin and profitability improvement. The stock's reaction could offer a useful gauge of China EV demand and pricing conditions.

Smaller firms like Rezolve AI (RZLV) and Yext (YEXT) may also provide hints about speculative demand for agentic commerce, AI search, and customer-engagement businesses. Their moves will be less significant for the overall market due to their smaller market capitalizations.

The after-hours earnings are the more crucial test.

Palo Alto Networks (PANW): Cybersecurity confirmation. Options imply a move of roughly 9%-10%. PANW can help clarify whether the strong moves in CrowdStrike and other cybersecurity firms represent a sector-wide trend or largely company-specific outcomes.

A robust reaction from PANW would support the view that AI is boosting demand for cybersecurity tools. Weakness even with decent results would indicate that expectations had become too high to beat.

Dell (DELL): AI servers and infrastructure spending. Options imply a move of approximately 11%. Dell has become a key gauge of AI-server demand and enterprise infrastructure investment.

Strong results and a positive stock response could demonstrate that AI spending is propagating through the hardware supply chain. A weak response could raise worries about server margins, enterprise demand, or whether AI-infrastructure valuations already reflect too much future growth.

Credo Technology (CRDO): AI networking demand. Options pricing points to a move of roughly 13%-14%. Credo supplies connectivity products utilized in data centers, making its earnings pertinent to the networking aspect of the AI buildout.

Its reaction may also offer an early indication ahead of Broadcom's earnings. However, CRDO's results alone cannot confirm the outlook for the entire networking sector.

MongoDB (MDB): Cloud databases and software volatility. Options imply a particularly large move of around 16%-17%. MongoDB can offer insights into cloud database demand, enterprise software spending, developer activity, and the data infrastructure used by AI applications.

Given the already large expected move, traders should compare the actual reaction to what options had priced rather than just looking at whether the stock goes up or down.

GitLab (GTLB): Developer tools and DevSecOps. Options imply a move near 15%. GitLab provides another test of enterprise software demand, especially for developer tools and security-centric development platforms.

A strong reaction in conjunction with PANW and MDB would indicate that software strength is spreading. A mixed set would back the more conservative view that investors are still very selective.

What could alter the earnings outlook?

A broadly upbeat after-hours response, led by PANW and Dell and backed by CRDO, MDB, or GTLB, would reinforce the idea that earnings sentiment is improving beyond just a few winners.

If PANW and Dell disappoint while the higher-volatility software and AI-infrastructure names also decline, that would imply that the earnings environment is still defensive and that strong moves like CrowdStrike's remain company-specific.

The key is to evaluate the group as a whole. A single big winner or loser may grab headlines, but sector breadth and reactions compared to options-implied moves will give a more useful signal.