Xiaohan Meiquant · data viz

02 · Data visualization

Visualization work

Interactive studies on market and public data. Every chart is live: hover for values, change the filters, switch the language.

Featured

Options market explorer

A live dashboard on the implied volatility surface of 18 liquid US underlyings, read three ways.

  • Skew: implied volatility across strikes, one curve per expiry.
  • Term structure: how implied volatility changes with maturity.
  • Implied against realized: what options price in, next to what the underlying actually did.
Live dashboard coming soon

SPY downside skew, one line per expiry from 7 days to 2 years · 2026-10-20

More studies

02

Tesla, 2020–2023: four years of one volatile stock

Price path, drawdowns, volatility regimes, monthly results and the fat tails of daily moves.

7 charts · 1,006 trading days View study →
03

S&P 500 atlas

Who is in the index, where they are headquartered and when they joined. Two filters drive seven linked views.

7 linked views · 503 constituents View study →
04

Data explorer with automatic chart selection

Choose up to three variables; the explorer reads their types and draws the chart that fits.

9 chart rules · 142 countries, 1952–2007 View study →