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S&P 500 Realized Volatility vs VIX

A direct implied-versus-realized volatility comparison that pairs the VIX with trailing 20-day realized S&P 500 volatility.

Daily · through Oct 20, 2026
Data & methodology
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Older events · Members

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The latest series values and a keyboard-readable date table are below the chart. CSV and JSON downloads are for NASDUCK paid members.

Use Value for the raw series and % from view start to rebase the first visible value in the current window to 0%.

Dates & readable data

Raw values in the selected chart window

Selected historical events

Curated anchors for market context, rather than a complete news feed. Toggle markers above to place them on the chart.

Mar 10, 2000 Dot-com bubble peaks as the Nasdaq closes above 5,000
Sep 17, 2001 Wall Street reopens after the September 11 attacks
Sep 15, 2008 Lehman Brothers files for bankruptcy as the financial crisis peaks
Mar 9, 2009 Financial-crisis bear market bottoms
May 6, 2010 Flash Crash: the Dow drops almost 1,000 points in minutes
Aug 8, 2011 S&P strips the US of its AAA credit rating
Aug 24, 2015 China's yuan devaluation sparks a global flash crash
Jun 24, 2016 UK votes to leave the EU
Feb 5, 2018 Volmageddon blows up short-volatility trades
Mar 16, 2020 COVID panic across global markets
Mar 16, 2022 Fed starts its fastest hiking cycle in four decades
Mar 10, 2023 Silicon Valley Bank fails and sparks a banking scare
Aug 5, 2024 Yen carry-trade unwind: global selloff and a VIX spike
Sep 18, 2024 Fed starts cutting with a half-point move
Nov 6, 2024 Trump wins the election: stocks, the dollar, yields, and bitcoin jump
Dec 18, 2024 Fed signals fewer cuts in 2025; stocks drop and the VIX spikes
Apr 3, 2025 Liberation Day tariffs trigger a global crash; the April 9 pause sparks a record rebound
Oct 10, 2025 Trump threatens 100% tariffs on China; crypto sees record liquidations
Feb 28, 2026 US and Israel strike Iran; Hormuz traffic halts and oil has its biggest month since 1988
Apr 8, 2026 US-Iran ceasefire sends oil sharply lower
Jun 5, 2026 Chip rout and a hot jobs report revive rate-hike fears; Nasdaq's worst day since April 2025

How To Read It

  • Volatility spikes show stress, but what matters most is whether volatility stays high or quickly mean-reverts.
  • Rising volatility with flat prices usually signals a more fragile tape than the index headline suggests.
  • Compare current levels with prior stress zones rather than treating every jump as equally important.
Next step Fear shows up here first. TradeWatch reads it every market day.

VIX and put/call tell you how nervous the market is. TradeWatch adds what people are actually piling into, plus earnings targets.