Equities, treasuries, and signal detection.
Equity charts from Alpha Vantage, treasury yield curve from FRED, and anomaly alerts from a TensorFlow autoencoder.
5-minEach candle represents one bar of price action: the body spans the open-to-close range and the wicks mark the session high and low. Green = closed above the open; red = closed below. Narrow bodies signal balanced order flow; wide bodies indicate one side has conviction.
| Sym | Last | Chg | Spark |
|---|---|---|---|
| AAPL | 312.66 | +1.31% | |
| MSFT | 386.74 | -0.96% | |
| NVDA | 195.55 | +0.37% | |
| GOOGL | 366.46 | +1.82% | |
| META | 600.29 | +2.98% | |
| TSLA | 419.77 | +6.69% | |
| AMZN | 244.16 | +0.61% | |
| JPM | 337.72 | +1.43% | |
| BRK.B | 506.58 | -0.24% |
The sparkline compresses the full intraday price series into a single thumbnail. A flat net change can mask significant intraday volatility — the sparkline shows whether the day was a steady trend or a reversal.
Each point is the prevailing yield on US Treasury debt at that maturity. A normal curve slopes upward — longer maturities command a term premium for duration risk. When the curve inverts (2Y yield exceeds 10Y), it typically reflects market expectations of near-term rate cuts, historically preceding a growth slowdown. The 2s10s spread is the most widely tracked inversion signal; it's preceded every US recession since 1980.
The autoencoder is trained to reconstruct normal market sessions from compressed latent representations. High reconstruction error indicates the input pattern falls outside the training distribution — statistically anomalous by the model's definition. σ is the number of standard deviations from the mean error; above 3σ is rare under normal conditions, above 4σ warrants review before the next session.
Portfolio theory & derivatives.
Markowitz mean–variance optimization and Black–Scholes option analytics — the linear algebra and pricing math run entirely in-browser.
Markowitz efficient frontier
Mean–variance optimization · max-Sharpe tangency · Live · 499d daily returns · Yahoo Finance · as of 2026-07-06
Black–Scholes pricer & Greeks
SPY spot $751.28 · σ 13% realized · 2026-07-06