https://ch.mathworks.com/help/fininst/fitsmoothingsplineirfunctioncurve.html
fitSmoothingSpline - Fit smoothing spline to bond market data - MATLAB
This MATLAB function fits a smoothing spline to market data for a bond.
bond market datafitsmoothingsplinematlab
https://www.mathworks.com/help/fininst/fitnelsonsiegelirfunctioncurve.html
fitNelsonSiegel - Fit Nelson-Siegel function to bond market data - MATLAB
This MATLAB function fits a Nelson-Siegel function to market data for a bond.
bond market datafitnelsonsiegelfunction
https://markets.ft.com/data
Markets data - stock market, bond, equity, commodity prices - FT.com
Latest stock market data, with live share and stock prices, FTSE 100 index and equities, currencies, bonds and commodities performance.
markets datacommodity pricesstockbondequity
https://www.splinedata.com/
Spline Data - Quantitative Municipal Bond Market Data
It's a new age for municipal bonds
municipal bondsplinedataquantitativemarket