Equities, regulation, and market-moving news from the United States, Canada, and Mexico.
Market overview
GSN covers three North American markets: the United States, Canada and Mexico. The United States sets the disclosure template most of the region’s issuers are measured against, and the other two run their own regimes alongside it.
Read the full overview and sources
The American framework is statutory and old. The Securities Act of 1933, the truth in securities law, requires that investors receive financial and other significant information about securities offered for public sale and prohibits deceit and misrepresentation in their sale, achieved mainly through registration; registration statements and prospectuses become public shortly after filing and, for domestic companies, land on EDGAR. Exemptions cover private offerings to a limited number of persons or institutions, offerings of limited size, intrastate offerings and government securities.
The Securities Exchange Act of 1934 created the Securities and Exchange Commission and gave it authority over brokerage firms, transfer agents, clearing agencies and the self regulatory organisations, which include the New York Stock Exchange, the NASDAQ Stock Market and the Financial Industry Regulatory Authority. Under that Act, companies with more than $10 million in assets whose securities are held by more than 500 owners must file annual and other periodic reports, and anyone seeking to acquire more than 5 percent of a company’s securities by direct purchase or tender offer must disclose it. The Trust Indenture Act of 1939 governs publicly offered debt, the Investment Company Act of 1940 the fund complex, and the Sarbanes-Oxley Act of 2002 and Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 sit on top of both. FINRA operates as the industry’s self regulatory organisation within that structure, and SRO rule proposals are published for public comment and, in some cases, need SEC approval before taking effect.
Canada runs a separate but heavily interconnected market. The Toronto Stock Exchange and TSX Venture are the country’s leading exchanges, with a two-tier structure that puts senior issuers on TSX and earlier stage ones on the venture board, and TMX itself describes 40% of all equity trading in Canadian markets as originating in the US. Mining and technology dominate the listed base, which is why Canadian coverage skews to resource disclosure and to cross-listed technology issuers.
Mexico is the smallest of the three and the most macro-driven. Banco de Mexico publishes the exchange rate used to settle obligations denominated in United States dollars that are payable in the Mexican Republic, the reference every peso-denominated financial statement and cross-border contract in the country turns on.
The index treatment of the three diverges more than their geography suggests. In the FTSE Equity Country Classification of Markets as at September 2023, the USA and Canada are Developed and Mexico is Advanced Emerging, which puts Mexican issuers in emerging-market benchmarks while their North American peers sit in developed ones. GSN’s coverage follows the filings: SEC registration and periodic reports, TSX and TSXV disclosure, and the Mexican regulatory and central bank publications that frame both.
Sources
This overview is based on the official documents listed below, last checked 2026-09-03. Figures are as stated in those documents.
Sernova Biotherapeutics Inc. and Seraxis Holdings Inc. have entered a definitive merger agreement to create BetaNova Biotherapeutics, a clinical-stage biotech focused on type 1 diabetes treatments.
Milestone Pharmaceuticals (Nasdaq: MIST) announced China's regulatory approval of etripamil nasal spray for heart rhythm disorder, marking the first approval of the drug outside the United States.
Monte Rosa Therapeutics announced a $50 million milestone payment from Novartis following the initiation of a Phase 2 clinical study for its Sjogren's disease treatment candidate.
Grupo Aeroportuario del Centro Norte reported July passenger growth across its 13 airports, with international traffic up 7.5% and three new routes launched.
Roivant Sciences will present topline results from its Phase 2 PHocus study of mosliciguat in patients with pulmonary hypertension associated with interstitial lung disease at the ERS Congress 2026.
The Winnipeg wound-care company said its antimicrobial gel spray featured in a presentation at the Military Health System Research Symposium in Florida.
ACI Worldwide has agreed to acquire Cranium Ventures and its SYNAP card switching framework for ACI Connetic. Terms were not disclosed and the deal is expected to close by the end of September.
Zentek Ltd. released a preliminary economic assessment for its Albany Graphite Project in Ontario, outlining production economics and infrastructure requirements.
The Mexican consumer health group reported second quarter net sales of 4,397.0 million pesos, down 6.0%, with EBITDA down 13.9% and net income of 374.5 million pesos.
Aficamten met both primary endpoints in the first Phase 3 trial to succeed in non-obstructive hypertrophic cardiomyopathy, and Cytokinetics plans a supplemental FDA filing in the fourth quarter.
The Mexican water solutions company reported a 3.4% rise in second quarter net sales but a 201 million peso net loss tied to finance costs in Argentina.
Bleichroeder Acquisition Corp. II shareholders approved the Pasqal business combination on August 25, 2026 and the deal closed two days later. Holders of 26,039,602 of 28,750,000 public shares redeemed.
The Saskatchewan-focused uranium explorer said a Southeast Asian conglomerate will take an approximately 19.7% stake through a non-brokered private placement.
The first of two pivotal wet AMD trials failed its primary visual acuity endpoint in the full dataset; EyePoint points to secondary endpoints and an ad hoc analysis excluding nine patients.
Newbury Street II Acquisition Corp announced a definitive business combination agreement with FORT Robotics to create a publicly traded entity focused on physical AI safety.
Fernando Queiroz, CEO of Levona Renewables, writes that transmission and interconnection work now consume more of his team's time than solar equipment does on a recent ERCOT-zone project.
In a shareholder letter filed with the SEC, Nexscient said its April acquisition of Flipside AI turned it into an operating business and outlined new AI data clients and Nasdaq uplisting plans.
Parsons, an engineering and construction services firm, has been selected to provide project management and construction management services for a major airport terminal renovation in Knoxville.
Saga Metals Corp. reports assay results from its Radar Titanium-Vanadium-Iron project in Labrador, including a 119.1-metre intercept from drill hole R-0051.
Rocket Lab filed pro forma and historical financial statements tied to its pending acquisition of satellite operator Iridium Communications, detailing deal terms and a $3.6 billion bridge loan.
Serve Robotics, a San Carlos-based autonomous delivery company, disclosed a Grubhub partnership, two new markets, and a next-generation hospital robot in an August 17 SEC filing.
Babcock & Wilcox will supply 20 Siemens Energy steam turbine generator sets totaling 1 gigawatt of capacity for its FastPower data center program, the company said.
Comstock's second-quarter filing sets out the cost, permitting status and rated capacity of the Silver Springs solar panel recycling plant, and the mining sale that funds it.
Canadian fusion energy developer General Fusion Group Ltd. started trading on Nasdaq on July 13, 2026, entering the public markets with approximately US$150 million in cash after finalizing its merger with the special-purpose acquisition company.
An amended SEC filing that corrects a slide in the company's investor presentation discloses second-quarter revenue growth, design wins, and third-quarter guidance.
Ondas Inc. said it has closed its previously announced acquisition of drone inspection firm Cyberhawk, expanding into critical infrastructure intelligence.
The connected-fleet software company reported first-quarter results, updated fiscal 2027 guidance, and named a new president and CFO plus a chief AI officer.
Rocket Lab reported record second-quarter 2026 revenue of $234 million and a record $2.36 billion backlog, and guided to another record revenue quarter in Q3.
The Seattle-based cell therapy company posted second-quarter 2026 financial results alongside clinical progress on its diabetes and lymphoma programs and a new Mayo Clinic collaboration.
Ichor Holdings posted second-quarter 2026 revenue of $294.8 million, up 15% sequentially, swung to GAAP profitability, and guided to further growth for the third quarter.
Shentel posted 5.5% revenue growth in the second quarter of 2026 as its Glo Fiber expansion segment grew 32.8% and the company reiterated full-year guidance.
Momentus told investors its Vigoride 8 mission is fully booked with two NASA payloads for 2027. The same filing shows $107.6 million of cash after $109.9 million of net financing in the first half.
Nauticus Robotics said it completed the first prototype of a compact electric subsea manipulator. Its second-quarter filing confirms the build and shows service revenue down 57% year on year.
Microbot Medical says LIBERTY robotic system drove more than 100% quarter-over-quarter growth in revenue and customers in Q2 2026, alongside new hospital adoptions, a federal supply agreement, and its first clearance outside the US.
NewHydrogen, Inc. said it is automating its Engineering Test Unit to support development of its ThermoLoop hydrogen technology, aiming for round-the-clock testing ahead of a planned pilot plant.
Guidance and consensus estimates sound like the same yardstick, but they are built differently, updated differently, and can send opposite signals in the same earnings report.
Weeks before each quarterly report, board members and executives at Mexican listed companies stop trading their own shares and commenting on results. Here's how that silence works and why it exists.
National Instrument 52-112 replaced two decades of staff guidance with a binding rule on non-GAAP measures, setting out labelling, prominence, reconciliation and comparative-period requirements for figures such as adjusted earnings.
Lock-up agreements keep insiders and early investors from selling shares for months after an IPO. Here's how these contracts work and what happens mechanically when they expire.
A bond ladder strategy involves purchasing bonds with staggered maturity dates to create a predictable income stream and manage interest rate risk. This educational overview explains how this market mechanism works for fixed income investors.
Earnings per share is fixed by an accounting standard, not by convention. Here is what IAS 33 requires in the numerator and the denominator, and what the Canadian filing rules add on top.
A company can go public on the TSX with no business at all, just cash held in trust and a mandate to merge. Here is how a SPAC listing and its eventual de-SPAC merger actually work.
Explicación educativa sobre el proceso mediante el cual los intermediarios determinan el precio de lanzamiento de una empresa en bolsa, un mecanismo fundamental en los mercados de capitales.
How SEC Regulation NMS forces brokers and exchanges to route orders to the best displayed price, and what actually counts as a trade-through violation.
Almost no Mexican investor holds a physical certificate with their name on it. This is how S.D. Indeval, the institution that custodies, clears and settles shares traded on the BMV and BIVA, actually works.
A single Canadian stock trade can pass through a private, industry-funded regulator most investors have never heard of. Here is what CIRO actually oversees, and how that differs from provincial securities commissions.
Some US corporate and municipal bonds can be paid off years before maturity, at the issuer's choice alone. Here is how call provisions, call prices and make-whole premiums actually work.
A look at the primary auction mechanism through which the Mexican government places Cetes and other securities, and the key role of primary dealers as mandatory buyers.
One fixed number, set when the security is issued, decides whether a convertible debenture behaves like a bond or starts trading like the shares underneath it.
A structural look at how short sellers locate and borrow shares, track short interest and days to cover, and eventually close out a position, including the risk of a forced buy-in.
A look at how the Bolsa Mexicana de Valores and BIVA list and trade the same securities, and why brokers must always seek the best price across both venues.
Behind every tender offer headline is a specific number: the premium over the recent trading price. Here is the mechanics of how that figure gets built.
Behind every exchange-traded fund lies a largely invisible mechanism of creation and redemption that keeps its price tied to the value of the assets it holds.
A company can sell new shares years after going public, without ringing any opening bell. Here is how that process differs from an IPO, and why the distinction matters for how markets absorb the news.
A single ticker can stop trading for hours while the rest of the market carries on as usual, and understanding why reveals two very different regulatory tools at work.
The S&P/TSX Composite is often called a resource-heavy benchmark, but the mechanics of market-cap weighting mean commodity sectors influence the index in ways that are easy to misread.
A single comment letter rarely moves a regulator. Here is the quiet, multi-year process that actually determines when a securities watchdog reopens an existing disclosure rule.
A publicly listed vehicle lets any investor gain exposure to Mexican real estate without signing deeds or managing tenants. Here's how the structure works.
Canadian preferred shares and common shares look similar on a trading screen, but their claims on a company's cash diverge sharply once earnings falter, and understanding that order explains why the two often move in opposite directions.
A bond's stated yield tells you almost nothing about how much its price will move when rates change. Duration does. Here is what the number actually captures.
A Mexican investor can gain in dollars yet lose in pesos, or vice versa. Here's how currency risk works and why it's worth understanding before you invest outside Mexico.
Earnings guidance sounds like a forecast investors can bank on, but the legal fine print, and the safe-harbor language wrapped around it, tells a very different story.
A new bond issue leaves a precise public record the moment it is priced. Here is what the SEC and FINRA rulebooks show about how that price is set, disclosed and reported.
From the decision to list to first trading on the BMV or BIVA, the process can take more than twelve months of regulatory, accounting, and legal work. Here's how it works.
A look at how primary dealers bid, how the Bank of Canada allocates debt, and why the auction "yield" is a market outcome rather than a rate set by decree.
Every few months, thousands of public companies report results within the same few weeks. Here is why that clustering happens and how the calendar behind it actually works.
A shareholder can end up owning the same number of shares yet a smaller slice of a company after a rights offering. Here is the mechanical reason why, and how the value of a subscription right is calculated.
A company can announce a multi-billion-dollar buyback authorization and repurchase almost none of it. Here is how boards actually set that ceiling, and why it is a permission slip, not a promise.
An overview of the regulatory framework that oversees Mexican securities intermediaries and the authority that authorizes, supervises, and sanctions their operations.
Canada is the only G7 country without a single national securities regulator, and understanding why reveals a lot about how the country's markets actually function.
A price range printed on a prospectus is a starting point, not a forecast. Here is what happens in the weeks before underwriters lock in the number investors actually pay.
An overview of how Mexico's inflation-indexed bonds work, why their nominal value changes over time, and how they differ from traditional fixed-rate bonds.
Behind Canada's junior market sits a graduated system of financial thresholds, escrow rules, and sponsorship requirements that determine which small and early-stage companies get to ring the bell.
Tender offers and open-market buybacks both shrink a company's share count, but their legal structure, pricing, and timeline work in almost opposite ways.
Behind every takeover bid is a deadline, a minimum price, and a set of rules that determine whether minority shareholders can negotiate on equal terms or simply accept the offer.
Canada's dividend tax credit reworks the after-tax comparison between dividend income and other yields, through a gross-up and credit system that few investors outside the country ever encounter.
A private company can reach a public listing through a traditional IPO or by merging with a special purpose acquisition company. The destination looks similar, but the process, the disclosure regime, and the timeline diverge sharply.
A downgrade changes an opinion, not a business. SEC filings and staff findings show where it becomes real: collateral clauses, fund mandates and index rules, and a spread move that has usually already happened.
A stock sits flat all session, yet the options tied to it swing in value. The explanation lies not in direction but in a separate force: implied volatility.
Form 10-K and Form 10-Q run on different item lists, different accounting rules and different clocks, and a company's public float decides which deadline and which scaled disclosures apply.
Rule 10b-18 sets how an issuer may buy its own shares, Item 703 sets what it must publish afterwards, Delaware law sets whether it may buy at all, and a federal excise tax prices the whole exercise.
Regulation FD, Regulation G and the statutory safe harbor decide the order of events on an earnings call, which numbers must be reconciled, and how the outlook has to be worded.
A stock trades thousands of times a second with barely a ripple in price. Behind that smoothness sits a quiet, highly regulated business built on pennies, speed, and risk.