- Short Squeez
- Posts
- đ Jane Street Out-Trades the Banks
đ Jane Street Out-Trades the Banks
Plus: Anthropicâs valuation hits $183B, Google rallies 8% after clearing a key antitrust hurdle, Apollo launches a $5B sports fund, and a16z to back ultra-early-stage founders.

Together With
"I donât want a lawyer to tell me what I cannot do. I hire him to tell me how to do what I want to do." â J.P. Morgan
Good Morning! Anthropic raised $13 billion at a $183 billion valuation, nearly tripling since March. (SBFâs ~7.8% stake would have been worth ~$15 billion if he wasnât forced to liquidateâŠ) Nvidia logged a fourth straight loss, shedding ~$340 billion, while Google popped 8% after a judge ruled the company can keep its Chrome browser.
Manhattan office leasing is on track for its strongest year since 2019, Kraft Heinz will split into two companies (shares fell 7% after Buffett called the move âdisappointingâ), Apollo is prepping a $5 billion sports fund, and a16z will begin backing ultra-early-stage founders, including college-age founders.
Plus: Starbucks is rolling out protein drinks with up to 36g per serving, the âEinstein of Wall Streetâ reflects on four decades on the NYSE floor, and 27 underrated European destinations worth a visit.
Will Bill Ackman announce a new short before October? Trade it now on Kalshi.
SQUEEZ OF THE DAY
Jane Street Out-Trades the Banks

Source: Bloomberg
Jane Street just set a Wall Street record and posted $10.1 billion in Q2 trading revenue.
The firm out-traded bulge bracket banks, including giants JPMorgan, Goldman, and Morgan Stanley. First-half revenue hit $17.3 billion, putting the firm on pace to surpass its record $20.5 billion haul from last year.
For perspective, Jane Streetâs $17.3 billion first-half revenue already exceeds what Bank of America and Citigroupâs entire trading divisions generate in a full year.
Unlike the bulge brackets, Jane Street doesnât have thousands of traders, decades of client relationships, or a fortress balance sheet. What it does have is unmatched speed in electronic market-making, ETFs, options, bonds, and derivatives executed faster and cheaper than the banks. And in a quarter dominated by Trumpâs tariff shocks and constant volatility, that edge translated into billions.
Competitors are scrambling. Citadel managed a record first half at $5.8 billion, while Hudson River Trading doubled revenue to $2.6 billion. But Jane Street is operating on another level; a privately held quant shop now rivaling the worldâs biggest banks in raw trading income.
Jane Street has also had quite the year outside the trading floor. Its founder admitted to accidentally funding a coup attempt in South Sudan, while Indian regulators banned the firm after exposing its options strategy in a 105-page order, rare visibility into tactics the firm usually keeps in the shadows.
Takeaway: Jane Street has out-traded the JPMorgans of the world, showing that in todayâs markets, technology and speed are worth more than balance sheets and brand names. The future of trading likely belongs to the quants, but as Jane Streetâs profits grow, so does regulatory scrutiny. With India already shutting the door and global headlines swirling, watchdogs will be circling close by.
HEADLINES
Top Reads
Anthropic now valued at $183 billion (Axios)
Google stock jumps 8% after avoiding worst-case in antitrust case (CNBC)
Manhattan office leasing on track for highest volume since 2019 (CNBC)
Kraft Heinz to split into two companies (CNBC)
Warren Buffett says he is disappointed in Kraft Heinz split (CNBC)
Apollo planning launch of $5B sports fund (YF)
Andreessen Horowitz quietly launches accelerator to woo new founders (BB)
Nvidia slide starts stoking concern (BB)
âEinstein of Wall Streetâ reflects on four decades on the NYSE floor (WSJ)
Starbucks to launch protein cold foam, lattes later this month (CNBC)
Klarna seeks to raise up to $1.27B in New York IPO (CNBC)
The less you know about AI, the more you are likely to use it (WSJ)
Apollo CEO Marc Rowan says the traditional investing model is broken (CNBC)
Blackstone to invest in South Korean hair care brand Juno (BB)
Blackstone-backed HVAC firm Legence files for $754M U.S. IPO (BB)
Ray Dalio warns US is transforming into a 1930s-style autocracy (CNN)
Klarna, Gemini, and Figure headline a busy fall IPO pipeline (Axios)
Where to hide if you're worried stocks will go down this autumn (Axios)
U.S. manufacturing contracts for sixth straight month in August (YF)
Private equity ramps up PR efforts to push into 401(k)s (WSJ)
Billionaire Sunil Mittal taps Citi for Airtel Moneyâs planned 2026 IPO (BB)
PRESENTED BY KALSHI
Ackmanâs Next Short Play?
Bill Ackman rarely takes short positions, but when he does, markets pay attention. Now, Kalshi is offering traders a way to speculate on whether heâll unveil another short before October.
Ackmanâs short track record is well known: a $1 billion short against Herbalife in 2012, a 100x return on pandemic-era credit default swap hedges in 2020, and a public short against Icahn Enterprises in 2024. Right or wrong, his positions have consistently moved markets.
Kalshiâs new event market currently prices just a 5% probability that Ackman announces short before October. Does he have one more short in store this month?
CAPITAL PULSE
Markets Rundown

Market Update
U.S. stocks opened September lower, with real estate and industrials leading declines while energy and consumer staples posted gains.
10-year Treasury yield rose to 4.27%, continuing the recent move higher.
Asia finished mixed, following the Shanghai Cooperative Organization summit that included leaders from China, India, and Russia.
European markets fell, weighed by higher bond yields and a rise in EU harmonized CPI to 2.1% y/y, above expectations.
Dollar strengthened against major peers; WTI oil gained amid renewed concerns over Russian supply disruptions.
Economic Data Highlights
U.S. Manufacturing PMI rose to 53.0, moving back into expansion territory, with production and new orders driving the gains.
ISM Manufacturing PMI improved to 48.7, though it remained in contraction; new orders and supplier deliveries were bright spots, while employment lagged.
Companies increased inventories, citing concern about rising costs and future supply constraints.
Reported Earnings
NIO (NIO) â Delivered mixed results: strong deliveries but pressured gross margins due to price cuts; outlook guided to improved profitability in Q4.
Zscaler (ZS) â Reported billings growth above expectations; raised full-year guidance on robust enterprise demand for AI-driven security.
Iris Energy (IREN) â Bitcoin production rose with expanded capacity, though energy costs slightly weighed on margins.
Earnings Today
Salesforce (CRM) â Focus on AI adoption, subscription revenue growth, and operating margin expansion.
Figma (FIG) â Watching enterprise seat expansion, monetization progress, and AI-enabled design features.
GitLab (GTLB) â Key areas: large customer adds, AI feature uptake, and path to profitability.
Movers & Shakers
(+) Frontier Group ($ULCC) +14% after Deutsche says the budget airline will benefit from Spirit's bankruptcy.
(+) Biogen ($BIIB) +6% because the biotech companyâs injectable Alzheimerâs drug was approved.
(â) Kraft Heinz ($KHX) -7% after the company will split; Buffett said he was disappointed.
Private Dealmaking
Evernorth will invest $3.5 billion into Shields Health Solutions
Arclin agreed to buy Aramids from DuPont for $1.8 billion
Colt CZ Group agreed to buy a majority stake in Synthesia Nitrocellulose for $1.05 billion
Ortivity, an orthopedic clinic developer, raised $217 million
Framer, a no-code website builder, raised $100 million
Rain, a stablecoin infrastructure platform, raised $58 million
For more PE, VC & M&A deals, subscribe to our Buysiders newsletter.
BOOK OF THE DAY
Rocket Dreams

Description:
A gripping, fly-on-the-wall chronicle of the daring new Space Age, where billionaires, governments, and engineers are racing to shape our off-planet future. Davenport takes you behind the scenes at NASA, Blue Origin facilities, and SpaceX launch padsâwhere engineers log 100-hour weeks, and veteran astronauts marvel theyâre piloting âflying iPhones.â Through richly reported storytelling, the book captures high-stakes rivalries, lunar ambitions, and how public and private agendas collide.
Release Date: Sep 12
Book Length: 384 pages
Audible Length: 11 hrs 18 mins
Ideal For: Space enthusiasts, tech futurists, geopolitics watchers, and anyone fascinated by how private ambition, innovation, and national pride converge in the race beyond Earth.
âThis is a thrilling account, filled with remarkable reporting and great inside color, of the race between Elon Musk and Jeff Bezos to create commercial rockets.â â Walter Isaacson
PRESENTED BY BRIGHTWAVE
Turn Data Rooms Into Decisions
Data rooms are full of answers, if you can find them. Brightwaveâs AI research agents cut through the noise, delivering the insights you need in minutes instead of days.
Accelerated Analysis: Process thousands of pages from multiple formats instantly
Opportunity Radar: Spot risks and market moves before they hit the headlines
Effortless Scale: Handle more deals without sacrificing quality or accuracy
Stop drowning in documents. Start making confident calls with Brightwave.
DAILY ACUMEN
Anti-Portfolio
Every investor has one: the list of companies they passed on that became unicorns. They showcase it because missing is inevitable and educational.
You have one too: the job you didnât apply for, the email you didnât send, the risk you didnât take.
Most people bury their anti-portfolio under regret. The wiser approach is to study it.
Were you too cautious? Too distracted? Too sure of your own filters?
Every miss is a piece of data about how you perceive risk and reward.
The goal isnât to catch every winner, itâs to calibrate your judgment so the next time luck knocks, you recognize it faster.
The best investors donât just pick great companies, they get better at picking over time.
Life gives you the same feedback loop, if youâre willing to listen.
ENLIGHTENMENT
Short Squeez Picks
The most underrated European destinations
A neuroscientistâs blueprint for a happier brain
Stop procrastinating with science
The Kevin Bacon rule of retirement
Why chasing balance boosts performance
MEME-A-PALOOZA
Memes of the Day




đŁ Partner With Us: Get in front of an audience of over 1 million finance professionals, business leaders, and policy influencers. Submit a partnership inquiry.
đ Grow With Us: Work directly with the Overheard on Wall Street team to scale your finance brand. Schedule your free consult.
đ Short Squeez Premium â Insiders: Access exclusive content, including investment analysis, wellness features, career tools, and our full recruiting resource library. Upgrade to Premium.
đ§ą Wall Street Shop: Explore our collection of finance-themed apparel and merchandise. Visit the shop.
đŹ Deals Newsletter â Buysiders: A curated roundup of major M&A, private equity, and VC activity. Plus access to private deal flow. Subscribe here.
đ Real Estate Newsletter â City Squeez: Latest news and exclusive listings for those looking to buy, rent, or invest in real estate around the world. Sign up here.
đ Courses: Level up with our excel, modeling, and private equity courses. View offerings.
What'd you think of today's edition? |
Reply