Monday’s stock market is being driven by a very different mix of catalysts than last week’s broad macro rally.

The major indexes are hovering near record territory, but beneath the surface, individual stocks are making much larger moves as earnings, acquisitions, biotechnology data, AI infrastructure demand and geopolitical developments take over.

The most dramatic move in the attached market snapshot is AbCellera Biologics (ABCL), which is up 34.63% to $9.33. Archer Aviation (ACHR) is also surging, gaining 17.35% to $6.56 after announcing a transformative agreement with Boeing involving Wisk Aero, Insitu and SkyGrid. Reuters reported Archer was up about 17% in morning trading, while other market coverage showed the shares rising even more sharply during the session.

At the other end of the board, Coherent (COHR) is down 11.79%, Barrick Mining (B) is off 8.22%, monday.com (MNDY) is down 6.66%, and eBay (EBAY) is lower by 4.18%.

Berkshire Hathaway (BRK.B) is the notable defensive winner, rising 2.25% to $533.55 after reporting stronger results and revealing that it had begun deploying part of its enormous cash pile into stock buybacks and equity investments. Berkshire spent approximately $4.5 billion buying back its own shares during Q2, including $4.18 billion of Class B stock.

Here are the 10 stocks generating the most attention today, August 10, 2026, based on the market snapshot supplied for this article and today’s news flow.

Data note: Prices and percentage changes below reflect the August 10, 2026 intraday market snapshot. Markets remain open during the session, so prices, volume and percentage changes can change before the closing bell. Support and resistance levels are technical working levels rather than guaranteed price points.

📊 Monday, August 10, 2026 — Market Snapshot

The broader market remains relatively resilient. The S&P 500 was around record territory Monday, while investors prepared for Wednesday’s inflation report and watched oil prices rise amid uncertainty surrounding the reopening of the Strait of Hormuz.

🚀 #1 — AbCellera Biologics (ABCL) | +34.63% to $9.33 | Biotech Explodes on Clinical Data

AbCellera is today’s biggest percentage gainer among the stocks in the supplied market snapshot.

The Vancouver-based biotechnology company jumped 34.63% to $9.33, with approximately 23.61 million shares traded — an unusually large amount of activity for a company with a market capitalization of roughly $2.12 billion.

The move is particularly significant because today’s price has moved above the stock’s listed 52-week high of $8.44, meaning the shares are breaking into new territory on the current data.

Why ABCL Is Exploding

Today’s rally is tied to fresh clinical-development news surrounding AbCellera’s drug-development pipeline.

Market coverage identified AbCellera among Monday’s standout biotechnology movers following promising early trial results for a menopause treatment. Barron’s reported the stock was up approximately 28% in Monday trading amid the development.

AbCellera specializes in antibody discovery and development, using its technology platform to identify therapeutic antibodies for pharmaceutical partners and its own pipeline.

The company has previously advanced programs including ABCL635, an antibody targeting NK3R for menopausal vasomotor symptoms, and other immune-related programs.

ABCL Technical Levels

Trader takeaway: ABCL is now a momentum stock. The critical question is whether buyers can hold the breakout above the former $8.44 high. A sustained move above $10 would give the stock another psychological breakout level, while falling back below $8.40 would weaken the breakout structure.

✈️ #2 — Archer Aviation (ACHR) | +17.35% to $6.56 | Boeing Just Changed the Story

Archer Aviation is the second-biggest percentage gainer in the supplied snapshot, rising 17.35% to $6.56 on massive volume of approximately 53 million shares.

But this is much more than a normal eVTOL rally.

Boeing is becoming a major strategic shareholder in Archer.

Archer announced Monday that it plans to acquire Boeing’s Wisk Aero, along with Insitu and SkyGrid. In exchange, Boeing will receive a 19.75% stake in Archer, warrants and the right to nominate a director. (Reuters)

The transaction potentially transforms Archer from a relatively speculative electric-air-taxi developer into a broader aerospace and autonomous-systems company.

The acquired businesses bring Archer access to:

• Autonomous-flight technology
• Drone and unmanned-aircraft capabilities
• Air-traffic management software
• Defense exposure
• Boeing engineering and technology
• Wisk’s accumulated eVTOL development experience

Insitu also brings a profitable defense business generating more than $200 million in annual revenue, according to market coverage.

Why the Boeing Deal Matters

The most important change is that Archer is no longer relying exclusively on the commercial air-taxi market.

The defense and autonomous-flight opportunity potentially gives Archer another revenue pathway while its Midnight eVTOL aircraft moves toward certification and commercialization.

However, investors should remember that eVTOL remains a high-risk industry. Certification, manufacturing scale, battery economics, infrastructure and customer adoption remain significant execution challenges.

ACHR Technical Levels

Trader takeaway: Today’s 53-million-share volume is the major signal. If ACHR can establish $7 as support rather than resistance, the next momentum targets could move toward $8–$10. A failure to hold the $6 area would suggest profit-taking after the Boeing-driven spike.

📉 #3 — MoonLake Immunotherapeutics (MLTX) | −6.19% to $17.13 | Biotech Volatility Returns

MoonLake Immunotherapeutics is down 6.19% to $17.13, with approximately 2.06 million shares traded and a market capitalization near $1.54 billion.

The stock remains one of the most volatile names on today’s board.

Its 52-week range of $5.95 to $62.75 tells the story: MLTX has experienced enormous swings as investors continuously reassess the potential of its clinical pipeline.

MoonLake is developing sonelokimab, an investigational Nanobody designed to target inflammatory diseases.

The company sits in one of biotechnology’s most attractive but competitive categories: immune-mediated diseases where successful therapies can potentially generate substantial commercial markets.

Why Investors Are Watching MLTX

For biotech investors, the critical variables are clinical efficacy, safety, regulatory milestones and the probability that a promising pipeline candidate can eventually reach commercialization.

That makes MLTX fundamentally different from a company such as Berkshire Hathaway or eBay. A clinical-development milestone can create a huge valuation change overnight.

MLTX Technical Levels

Trader takeaway: MLTX is currently sitting far below its $62.75 52-week high. The stock needs to reclaim $18–$20 before the chart begins to show meaningful momentum recovery.

🔻 #4 — Coherent (COHR) | −11.79% to $334.41 | AI Optics Rally Gives Back Ground

Coherent is one of today’s biggest decliners, falling 11.79% to $334.41 with roughly 3.75 million shares traded.

The move is notable because Coherent had recently been one of the market’s strongest AI infrastructure beneficiaries.

Just days ago, optical and photonics stocks surged after reports that U.S. regulators were considering restrictions on Chinese-made optical transceivers for U.S. data centers. Coherent jumped approximately 13% during Friday’s rally.

That makes today’s decline look partly like a profit-taking and volatility reversal rather than a simple deterioration in the company’s long-term AI thesis.

Coherent supplies optical and photonics technologies used across communications, semiconductor and industrial applications.

The AI Infrastructure Connection

AI data centers increasingly require extremely high-bandwidth optical connectivity because enormous quantities of data must move between GPUs, servers and networking equipment.

That makes companies such as Coherent and Lumentum important “picks-and-shovels” suppliers to the AI buildout.

The problem is valuation.

When a stock rises rapidly on an AI infrastructure narrative, even a modest change in sentiment can produce a double-digit decline.

COHR Technical Levels

Trader takeaway: $320–$325 is the first area to watch. A break below $300 would substantially weaken the recent AI-optics momentum structure.

🏦 #5 — Berkshire Hathaway Class B (BRK.B) | +2.25% to $533.55 | Greg Abel Starts Deploying the Cash

Berkshire Hathaway is today’s major defensive standout, rising 2.25% to $533.55 with approximately 1.79 million shares traded.

The catalyst is not a flashy acquisition.

It is capital allocation.

Berkshire’s latest results showed stronger-than-expected performance, while the company disclosed that it had started putting its enormous cash reserves to work.

Cash and equivalents declined from approximately $397.4 billion to $365.5 billion, while Berkshire repurchased approximately $4.5 billion of its own shares in Q2.

Even more importantly, Berkshire was a net buyer of equities during the quarter after 14 consecutive quarters in which it had sold more stocks than it purchased.

The company also increased its exposure to Alphabet, according to market reports.

Why Investors Care

Berkshire’s cash pile had become one of the biggest stories in global investing.

The latest moves suggest CEO Greg Abel is becoming more willing to deploy capital after inheriting an unusually large liquidity position.

That can support Berkshire’s earnings growth while also signaling that management believes valuations are attractive enough to justify buying.

BRK.B Technical Levels

Trader takeaway: BRK.B is trading above the supplied 52-week high of $525.44, making $525–$528 the critical breakout-support zone.

⛏️ #6 — Barrick Mining (B) | −8.22% to $40.09 | Earnings Miss Hits Gold Miner

Barrick Mining is down 8.22% to $40.09, with more than 11.54 million shares traded.

This is one of today’s clearest fundamental selloffs.

Reuters reported Monday that Barrick’s quarterly profit missed analyst estimates, weighing on both Barrick and Canada’s broader stock market.

Barrick’s exposure to gold and copper makes the stock especially sensitive to commodity prices, production costs, geopolitical developments and operating performance at its mines.

Why Today’s Drop Matters

Gold miners have enjoyed an exceptionally strong environment, meaning investors have increasingly high expectations for production and cash generation.

When a major miner misses profit expectations during a strong commodity environment, the market can punish the stock disproportionately.

Barrick is also in the middle of a strategic evolution from its traditional gold-heavy identity toward a broader gold-and-copper mining model.

B Technical Levels

Trader takeaway: $40 is psychologically important. Losing that level decisively could accelerate the correction toward the mid-$30s.

💡 #7 — Lumentum (LITE) | −5.81% to $838.45 | AI Optics Stock Faces Earnings Volatility

Lumentum is down 5.81% to $838.45, with approximately 2.11 million shares traded.

At roughly $69.26 billion in market capitalization, Lumentum has become one of the most important publicly traded beneficiaries of the AI data-center optical infrastructure buildout.

But today’s decline comes immediately before a major catalyst:

Lumentum reports earnings Tuesday.

Options markets were pricing in the possibility of a move of roughly 13% in either direction following the earnings report.

That means today’s decline may represent investors reducing risk ahead of the report rather than abandoning the long-term AI thesis.

Why LITE Has Become an AI Stock

Lumentum supplies optical and photonic components used in high-speed data communications.

As AI clusters become larger, the industry increasingly needs higher-speed optical connections to move data between computing systems.

Morgan Stanley has identified Lumentum and Coherent among the clearest beneficiaries of the industry’s transition toward optical connectivity in data centers.

Analysts were expecting quarterly revenue of approximately $989.9 million and adjusted EPS around $2.98 heading into the report.

LITE Technical Levels

Trader takeaway: LITE is one of Tuesday’s most important earnings setups. A strong report could quickly send the stock back toward $900–$1,000, while a disappointing outlook could expose the $780–$800 region.

🤖 #8 — Ouster (OUST) | −1.15% to $42.90 | Autonomous-Sensing Stock Consolidates

Ouster is down a relatively modest 1.15% to $42.90, with about 1.07 million shares traded and a market capitalization of approximately $3.13 billion.

Compared with the double-digit moves elsewhere on the board, OUST is showing relative stability.

Ouster develops lidar and perception technology used for robotics, industrial automation, autonomous systems and other machine-vision applications.

The stock remains highly speculative because its long-term valuation depends on the pace at which autonomous systems transition from pilot projects to commercial deployment.

Why OUST Remains Interesting

The broader autonomous-technology theme is receiving additional attention following Archer’s Boeing transaction.

Archer’s acquisition of Wisk, Insitu and SkyGrid demonstrates that aerospace companies are increasingly combining autonomous flight, unmanned systems and airspace-management technologies.

That does not directly change Ouster’s financial results, but it reinforces the broader investment theme around machine autonomy.

OUST Technical Levels

Trader takeaway: OUST remains above its $16.40 52-week low by a wide margin, but the stock needs a decisive move above $45 to restart near-term momentum.

📉 #9 — monday.com (MNDY) | −6.66% to $86.93 | Earnings Day Becomes the Main Event

monday.com is down 6.66% to $86.93, with approximately 1.86 million shares traded and a market capitalization of roughly $3.94 billion.

Today’s weakness is particularly important because monday.com is reporting Q2 2026 results today.

The company confirmed that its earnings release and conference call were scheduled for August 10, with management scheduled to discuss results at 8:30 a.m. ET.

Analysts had been expecting approximately $0.96–$1.11 in EPS and roughly $355 million in quarterly revenue, depending on the estimate source.

The Bigger Story

monday.com is attempting to position itself as an AI work platform, rather than simply a project-management software company.

The company says more than 250,000 customers use its platform and that its AI layer is designed to automate workflows rather than simply assist users.

But the market has become increasingly concerned about whether AI can accelerate software productivity while simultaneously reducing the need for per-seat SaaS subscriptions.

That creates a major valuation debate.

MNDY Technical Levels

Trader takeaway: Today’s earnings reaction could overwhelm every technical level. $90 is the first important recovery hurdle, while $80 represents the more important downside line.

🛒 #10 — eBay (EBAY) | −4.18% to $107.30 | GameStop Deal Uncertainty Hits Shares

eBay is down 4.18% to $107.30, with approximately 1.05 million shares traded.

The catalyst is a developing M&A story involving GameStop.

Reports Monday indicated that GameStop CEO Ryan Cohen is considering alternatives to the proposed eBay acquisition, including a potential partnership or joint venture rather than completing the full transaction.

The market immediately responded by pushing eBay lower.

Why Investors Care

The potential transaction has created an additional valuation catalyst for eBay.

If GameStop ultimately abandons the acquisition, investors must reassess eBay on its standalone fundamentals rather than on the potential takeover premium.

The stock is currently only about 10% below its supplied 52-week high of $119.31, making today’s decline significant but not yet a technical breakdown of the entire year’s rally.

EBAY Technical Levels

Trader takeaway: $100 is the key psychological support zone. If the GameStop transaction falls apart, eBay could see additional valuation compression before investors refocus on the company’s standalone earnings and cash-flow profile.

📊 Today’s 10 Trending Stocks — At a Glance

🔎 What Today’s Market Is Really Saying

There are four major themes connecting today’s movers.

1. Corporate transactions are creating enormous single-stock moves

Archer’s Boeing transaction is the clearest example.

The deal gives Archer access to Wisk, Insitu and SkyGrid while Boeing receives a nearly 20% stake. That dramatically changes the company’s strategic profile and explains why ACHR is trading with extremely high volume. (Reuters)

eBay shows the opposite effect: uncertainty around a potential transaction can destroy a takeover premium just as quickly.

2. Biotechnology remains a binary catalyst market

ABCL’s 34.63% move demonstrates why biotech stocks can behave completely differently from large-cap equities.

A clinical-development update can change the market’s estimate of a drug candidate’s probability of success — and therefore change the theoretical value of the entire company.

That makes ABCL’s breakout one of today’s most important momentum events.

3. AI infrastructure stocks remain extremely volatile

Coherent and Lumentum have been among the strongest beneficiaries of the AI infrastructure buildout.

But today’s declines demonstrate the other side of the trade.

Investors have already priced substantial AI growth into many optical and photonics stocks. When earnings approach, traders often lock in profits and reduce exposure ahead of potentially large post-earnings moves.

Lumentum is particularly important because options markets were pricing a potential 13% move in either direction around earnings. (Investopedia)

4. Berkshire is signaling a different kind of market confidence

Berkshire’s move is fundamentally different from ABCL, ACHR or LITE.

The company is not being driven by a speculative technology announcement.

Instead, investors are reacting to management’s decision to deploy billions of dollars of cash into its own stock and other equities.

Berkshire repurchased approximately $4.5 billion of stock during Q2 and became a net buyer of equities after 14 quarters of net selling. (MarketWatch)

That makes BRK.B one of today’s most important capital-allocation stories, rather than simply another momentum trade.

📈 Key Support & Resistance Levels for Today’s Watchlist

Technical levels are approximate working zones derived from the August 10 price structure, recent trading ranges, psychological levels and the supplied 52-week data. They should not be interpreted as guaranteed support or resistance.

⚠️ What Investors Should Watch Next

The most important catalysts over the next several sessions are not evenly distributed across these 10 companies.

ACHR: Watch whether the Boeing deal continues to attract institutional buying after the initial headline spike.

ABCL: Watch whether today’s breakout above $8.44 holds. Clinical-development momentum can be extremely powerful, but biotech rallies can also retrace rapidly.

COHR and LITE: These are the two most important AI-optics setups. Lumentum’s earnings Tuesday could determine whether the recent AI-photonics rally resumes or enters a deeper correction.

BRK.B: Investors will increasingly focus on whether Greg Abel continues deploying Berkshire’s cash rather than rebuilding the company’s enormous liquidity position.

B: Barrick’s earnings miss puts production, costs and forward guidance under the microscope. Reuters reported that the earnings disappointment was already weighing on Canadian equities Monday.

MNDY: Today’s earnings report is the immediate catalyst. With the stock already down sharply from its prior highs, guidance may matter more than the headline EPS number.

EBAY: The GameStop situation is now a material valuation variable. Any confirmation that GameStop is abandoning the acquisition could create another leg lower.

🧭 Bottom Line

August 10 is demonstrating why simply looking at the S&P 500 can miss the most important market action.

The major indexes remain close to record highs, but individual stocks are experiencing double-digit moves in both directions.

AbCellera is breaking out above its previous 52-week high. Archer is surging after securing Boeing as a strategic shareholder. Berkshire is being rewarded for finally deploying its massive cash reserves. Meanwhile, Coherent, Barrick, Lumentum, monday.com and eBay are facing very different combinations of earnings, valuation and deal-related pressure.

For traders, the key distinction today is between fundamental catalysts and momentum reactions.

ABCL and ACHR have major company-specific catalysts.

BRK.B has a capital-allocation catalyst.

MNDY and LITE have earnings catalysts.

EBAY has an M&A catalyst.

B has an earnings disappointment.

COHR’s move is largely occurring within an extremely volatile AI-infrastructure trade.

That distinction matters because not every sharp decline represents the same opportunity — and not every 20% gain represents the same level of fundamental improvement.

Follow TNN for daily stock market news and financial news today.

Disclaimer: This publication is entirely for informational and journalistic purposes and does not constitute formal financial, investment or legal advice. All market investments carry inherent risks of capital loss. Prices, percentage changes and volumes cited in the primary market table reflect the August 10, 2026 intraday market snapshot and may change before the market close. News and company developments have been cross-checked against August 10, 2026 reporting where available. Support and resistance levels are approximate technical working levels and are not guaranteed price targets. Clinical-trial outcomes, regulatory decisions, acquisitions and earnings results can materially change valuations. Always complete independent due diligence prior to executing equity trades.

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Kasia Davis

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