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Avatar photoBruno M.

Bruno M. founded ECMSource to make capital markets understandable for everyday investors. Coverage here is built from primary sources — SEC filings, Federal Reserve releases, and company disclosures — with automation handling the research legwork so it stays broad and current. Bruno sets the site's editorial standards; every number published traces back to a named source.

Advance Auto -24%: EPS Beat, Guide Raised, DIY Cracked

September 12, 2026August 21, 2026 by Bruno M.
Advance Auto -24%: EPS Beat, Guide Raised, DIY Cracked

Advance Auto Parts crashed 24.55% on August 20 even after beating on EPS and raising 2026 guidance. Here’s what actually broke — and what it means for the consumer trade.

Categories Earnings Tags aap stock, advance auto parts, consumer weakness, diy retail, earnings season, stock market

How an IPO Actually Works: S-1, Roadshow, Greenshoe, Lock-Up

September 12, 2026August 21, 2026 by Bruno M.
How an IPO Actually Works: S-1, Roadshow, Greenshoe, Lock-Up

IPO 101 with real numbers: what an S-1 filing is, how bookbuilding sets the price, why greenshoes and lock-ups exist, and what first-day pops mean.

Categories Market Education Tags bookbuilding, greenshoe option, investing basics, ipo process, lock-up period, s-1 filing

Treasury Doubles Long-End Bond Buybacks to $4B Per Op

September 12, 2026August 20, 2026 by Bruno M.
Treasury Doubles Long-End Bond Buybacks to $4B Per Op

Treasury will at least double liquidity-support buybacks in the 10-30Y sector to $4B per operation starting Sept 9. Bessent signals more could come.

Categories Stock Market Tags 30-year treasury yield, bond market, capital markets, quarterly refunding, scott bessent, treasury buybacks

Walmart Beats and Raises but WMT Falls 9.7% to 52-Week Low

October 27, 2026August 20, 2026 by Bruno M.
Walmart Beats and Raises but WMT Falls 9.7% to 52-Week Low

Walmart topped estimates and raised FY27 guidance, yet WMT fell 9.74% to $103.17. Soft US comps, a tariff-refund-funded raise, flat Q3 EPS, and higher capex explain why.

Categories Earnings, Market Education Tags consumer spending, retail earnings, stock market, tariff refunds, walmart earnings, wmt stock

Quad Witching Explained: What Happens on Expiration Friday

October 24, 2026August 20, 2026 by Bruno M.
Quad Witching Explained: What Happens on Expiration Friday

Quad witching is really triple witching now: three contract types expire on the third Friday of Mar, Jun, Sep, Dec. Here’s the real mechanics.

Categories Market Education Tags index options, investing basics, opex, options expiration, quad witching, triple witching

Anthropic Lines Up $10B+ Bank Credit Ahead of IPO

October 27, 2026August 20, 2026 by Bruno M.
Anthropic Lines Up $10B+ Bank Credit Ahead of IPO

Morgan Stanley, Goldman and JPMorgan each writing $1.25B into Anthropic’s $10B+ revolver, jockeying for lead roles on a $2T IPO targeted for October.

Categories Artificial Intelligence Tags ai infrastructure financing, anthropic ipo, capital markets, Goldman Sachs, JPMorgan, Morgan Stanley

Target Q2: EPS $4.11, Comps +3.8%, Turnaround Traction

October 27, 2026August 20, 2026 by Bruno M.
Target Q2: EPS $4.11, Comps +3.8%, Turnaround Traction

Target Q2 2026 earnings: EPS $4.11 (up 20% ex-tariff refund), comps +3.8%, digital +8.7%, guidance lifted. Stock +4.3% as turnaround gains traction.

Categories Earnings, Geopolitics & Markets Tags back to school 2026, consumer discretionary, retail earnings, stock market, target earnings, TGT stock

Convertible Bonds Explained: Coupon, Premium, Dilution

October 24, 2026August 20, 2026 by Bruno M.
Convertible Bonds Explained: Coupon, Premium, Dilution

What is a convertible bond? Coupon savings, conversion premium, dilution risk, and how hedge funds run convertible arbitrage — with real examples.

Categories Market Education Tags bond investing, capital markets, convertible arbitrage, convertible bonds, corporate finance, investing basics

US Debt Crosses $40 Trillion: Every $1T in 5 Months

September 12, 2026August 20, 2026 by Bruno M.
US Debt Crosses $40 Trillion: Every $1T in 5 Months

US public debt topped $40 trillion on Aug 18, 2026, per Treasury. The last two trillion arrived in about five months each.

Categories Stock Market Tags bond market, capital markets, federal deficit, sovereign debt, treasury bonds, us national debt

Moderna +177%, Merck +13% on Melanoma Vaccine Phase 3 Win

October 27, 2026August 19, 2026 by Bruno M.
Moderna +177%, Merck +13% on Melanoma Vaccine Phase 3 Win

Moderna soared 177% and Merck jumped 13% on Aug 19 after intismeran plus Keytruda hit its primary endpoint in the Phase 3 INTerpath-001 melanoma trial.

Categories Stock Market Tags cancer vaccine, merck, moderna, mrna stock, mrna vaccine, stock market
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