← Browse all charts Are small-cap stocks outperforming large-cap stocks?
IWM / SPY Ratio
0.3586 +1.32% close-to-close -0.7% YTD Close of Oct 20, 2026
This chart shows whether smaller US companies are gaining ground against large companies or falling further behind.
The deep history is for NASDUCK paid members.
This free chart covers the last five years. Everything older, plus the CSV and JSON downloads, comes with a paid NASDUCK subscription.
Loading chart data…
Chart data did not load. The surrounding notes and downloads are still available.
The latest values and a keyboard-readable date table are below the chart. CSV and JSON downloads are for NASDUCK paid members.
Use Price for the raw chart and % from view start when you want to compare the move across any chosen window. In percent mode, the first visible session becomes 0% and the scale stays linear. Log is available only when every loaded price is positive. Tip: drag to pan, scroll or pinch to zoom, and use Reset view to snap back quickly.
Dates & readable data
Selected historical events
Curated anchors for market context, rather than a complete news feed. Toggle markers above to place them on the chart.
How To Read It
- A rising line means IWM is outperforming SPY; a falling line means SPY is taking the lead.
- Use shorter windows for tactical leadership changes and longer windows for regime shifts.
- The most important reversals are the ones that break a long trend, not just a single volatile day.
Next step This chart shows the market. Dig for Stocks picks the stocks.
Breadth and sector charts tell you the weather. They just can't tell you which stock to hold for the next 10 days - that's the whole job of the Dig for Stocks algorithm.