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.
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.
VWAP Explained: What It Is and How Traders Use It
VWAP is the intraday benchmark institutions and traders share. Learn the formula, how to read it, and where it misleads.
Nebius Group’s $4.5B Convertible Fuels AI Cap-Ex Push
Nebius announced a $4.5 billion two-tranche convertible senior notes offering to fund AI data center buildout after Q2 revenue jumped 454% to $582M.
Alphabet’s A$5.5B Kangaroo Bond Smashes Aussie Corp Record
Alphabet priced a four-tranche A$5.5B kangaroo on Aug 19 with orders above A$18B — more than 2x Apple’s prior AUD tech record, all to fund AI capex.
AI Infra Rout: CoreWeave -12%, Lumentum -10%, SanDisk -9%
The chip selloff widened Monday as the AI supply chain got hit harder than the mega-cap designers. CoreWeave -12%, Lumentum -10%, SanDisk -9%, Seagate -9%.
VIX Explained: How the Fear Gauge Actually Works
The VIX measures expected S&P 500 volatility over the next 30 days. Here is how it is calculated, what levels mean, and where it misleads.
Global 30Y Yields Surge: US 5.31%, UK 5.83%, Japan 4.13%
Long-dated sovereign yields hit multi-year highs across the US, UK, Germany, and Japan in mid-August 2026 as buyers demand more term premium.
Chip Stocks -5% as Bond Yields Bite: MU -7%, AMD -4%
Semiconductors led a tech rout Aug 18 as the 10-year yield sat near 4.72%. Micron -7%, AMD -4.3%, SOX -4.98% — while Apple and Microsoft actually rose.
Options Greeks Explained: Delta, Gamma, Theta, Vega, Rho
A clear, math-honest guide to the five Greeks — with a worked Black-Scholes chain, delta and theta charts, and sources you can verify.