Start Here: Every Analysis by Topic

Every USStockInsights analysis, grouped by the question it answers. Each piece states its data source, as-of date and exchange, and explains what a number does and does not tell you. Nothing here is a recommendation to buy or sell.

Last updated October 29, 2026. For education only, not investment advice. Market data changes daily; check the as-of date in each article.

Valuation gauges: how expensive is the market?

• The S&P 500's Dividend Yield Just Hit an All-Time Low of 1.05%. Here's Why It's Not Quite 2000 Again
• The Equity Risk Premium Just Went Negative. Here's Every Other Time That Happened
• The Buffett Indicator Just Hit Its Highest Reading in Decades. Here's Why 'Record High' Doesn't Mean 'Imminent Crash'
• The S&P 500's Top 10 Stocks Are Near 40% of the Index. The Last Time That Happened Was 1965
• S&P 500 Equity Risk Premium Turns Negative Again: A 36-Year History Shows This Has Happened Only Twice Before, With Opposite Results
• The Shiller CAPE Ratio Just Hit 40.9, the Second-Highest Reading Ever. Here's What Happened the Only Three Other Times
• S&P 500 Concentration Has Passed the 1932 Record. Here's What Happened the Last Three Times

Leverage, sentiment and volatility

• Margin Debt Is Near $1.5 Trillion. Here's What Happened the Last Three Times Leverage Spiked Like This
• US Households Just Put a Record 48.23% of Financial Assets Into Stocks — Where That Sits Next to the 2000 Peak
• AAII Bearish Sentiment Hit a 95th-Percentile Extreme — With the S&P 500 Near Record Highs
• No Calm Guarantee: What the 2018 VIX Jump Reveals About a Quiet Market
• Margin Debt Hit $1.45 Trillion in August, a Record High: What Happened After the 2000, 2007 and 2021 Leverage Peaks

Market history: what past episodes teach

• In Every Down Year for the S&P 500 Since 2000, Dividend Aristocrats Lost Less — Here's the Record
• S&P 500 Midterm-Year Pattern Since 1946: Does the 20-for-20 Record Hold for October 2026?
• After Decimalization: Why the Displayed Stock Price Is Not Your Whole Trading Cost
• When Cash Was a Fund: What September 2008 Teaches About Brokerage Reserves
• Black Monday 1987 and the Limits of a Trading Halt: A Household Stress Test
• The 1994 Bond Shock: Why a Higher Treasury Yield Can Carry More Price Risk

The Fed, rates and the yield curve

• The S&P 500 Enters Q4 Up 14.6% for the Year. Here's What Happened the Last 21 Times It Was Up 10-20% Through September
• The Fed's First Hike in Three Years Opened a Historically Rough 90-Day Window for Stocks — Here's Where Day 13 Stands
• The Yield Curve Un-Inverted 25 Months Ago. Here's What Happened After Every Prior Un-Inversion Since 1978

Learning the basics

• How to Read a 10-K Filing: A Step-by-Step Guide for Retail Investors

Company and sector analysis

• IonQ Raises 2026 Revenue Guidance to $450–460 Million: What IONQ Investors Should Test Next