Sharpe Ratio Explained: Measuring Risk-Adjusted Returns
How the Sharpe ratio works: the formula, a worked example, common pitfalls, and why William Sharpe himself warned against trusting a single number.
Quantinuum Sets QNT IPO at $45-$50; Targets $12.7B Cap
Quantinuum’s amended S-1 sets QNT IPO at $45-$50 per share on ~21M shares, implying a $12.7B valuation and up to $1.05B in proceeds. Here’s how it stacks up.
AutoZone Falls 9% as International Comps Slow to 1.6%
AutoZone (AZO) closed down 8.99% to $3,100.11 on May 26, 2026 after Q3 FY26 EPS of $38.07 beat, but constant-currency international comps slowed to 1.6%.
Secondary Stock Offerings: Dilution, ATMs, and Greenshoes
How public companies issue new shares after their IPO, why the stock usually falls on the announcement, and what ATM offerings and greenshoes really do.
Kardigan Files for IPO (KARD): MyoKardia Veterans Return
Clinical-stage heart-drug developer Kardigan filed its S-1 for a Nasdaq IPO (ticker: KARD), backed by a JPM/Jefferies/Leerink/TD Cowen syndicate.
Micron Joins the $1 Trillion Club on AI Memory Surge
Micron (MU) jumped 19.3% to $895.88 on May 26, 2026, lifting its market cap above $1 trillion as AI HBM demand reshapes the memory cycle.
TIPS Explained: How Inflation-Protected Treasuries Work
How Treasury Inflation-Protected Securities work — principal adjustment, real yield, breakeven inflation, taxes, and where TIPS fit in a portfolio.
Russell 2026 Reconstitution: A $217B Day, Now Semi-Annual
FTSE Russell’s preliminary 2026 additions and deletions hit on May 22. The flip goes effective after the June 26 close – and now happens twice a year.
Pipeline Stocks Are Quietly Beating the S&P 5x in 2026
Midstream operators like WMB, OKE and KMI are up 20-30% YTD vs the S&P 500’s 4.7%. AI data-center power demand and the LNG export buildout are doing the work.
Implied Volatility Explained: How Options Price Future Moves
What is implied volatility? How does it differ from realized volatility, drive the VIX, and shape every options trade? A best-in-class explainer with worked numbers, IV rank, skew, and term structure.