Small Caps Are Crushing the S&P 500 in 2026 | Russell 2000's Best Start Since 1991 | 7investing Live

Everyone calls the S&P 500 "the market." But is it really? In this episode of 7investing Live, founder and CEO Simon Erickson breaks down what the market actually is in 2026, and why the benchmark you're using matters more than you think. There are roughly 5,600 companies listed on the NYSE and NASDAQ, yet just 500 of them make up 80% of the total US market value and the top 10 stocks alone now account for a staggering 36.4% of the S&P 500 index.Simon walks through the numbers behind today's market concentration: NVIDIA (NASDAQ:NVDA) sitting at the top as a nearly $5 trillion company, the S&P 500's $69 trillion total market cap, and why the index now rises and falls with Big Tech and the AI trade. Then the conversation turns to the more surprising story of 2026: the Russell 2000 small-cap index is up 20.7% year-to-date, nearly double the S&P 500's return, marking its best first half since 1991 and its widest margin of outperformance over the large-cap index since 2001.What's driving the rotation? Simon and Heather dig into mega-cap fatigue, stretched valuations for companies like Microsoft (NASDAQ:MSFT), the worst performer of the top 10 constituents, down 20% this year, 40%+ forecasted earnings growth for small caps, and the under-the-radar AI infrastructure plays like Lumentum (NASDAQ:LITE) hiding in the small-cap fish pond. Plus, a preview of later this week: three small-cap ideas with 20-bagger potential.0:00 - Welcome and 7investing Overview2:00 - Large-Cap Dominance: A closer look at the S&P 5007:02 - The Entire Market: An Introduction to the Russell 3000 Index8:32 - A Small-Cap Index: An Introduction to the Russell 200010:56 - Why are Small Caps Outperforming in 2026?13:40 - Returns of the Top 10 Companies in the S&P 50016:50 - Q&A: Investor behavior and risk toleranceWant to see all of our official stock recommendations? Visit 7investing.com/subscribe and get your first 7 days of premium access completely freePublicly Traded Companies Mentioned:NVIDIA (NASDAQ:NVDA)Apple (NASDAQ:AAPL)Microsoft (NASDAQ:MSFT)Amazon (NASDAQ:AMZN)Alphabet (NASDAQ:GOOGL, NASDAQ:GOOG)Berkshire Hathaway (NYSE:BRK.B)Broadcom (NASDAQ:AVGO)Lumentum (NASDAQ:LITE)Indexes/ETFs referenced: S&P 500 (SPY), Russell 3000, Russell 2000 (IWM)Private / Pre-IPO Companies Mentioned:OpenAIAnthropicHashtags#7investing #SimonErickson #SP500 #Russell2000 #smallcapstocks #stockmarket #investing #stocks #NVIDIA #bigtech #AIstocks #marketanalysis