Where do the authors of the article get the chart data? It turns out that index details and data are kind of treasured secrets. I could only find Russel 3000 o

Where do the authors of the article get the chart data? It turns out that index details and data are kind of treasured secrets. I could only find Russel 3000 on Bloomberg and MarketWatch[3][4]. On official FTSE Russell page there are no current values[1]. On Googling "Russel 3000 Growth" I get a chart from Google, but when going to MorningStar, which according Google's disclaimer is their source of data for "INDEXRUSSELL", I could only find Russel 3000[2] and it has bogus quote compared to Bloomberg and MarketWatch. I'm new to all this and since I've been reading a lot about ETFs latey I was hyped about the transparency. But it seems that if you're not Authorized Participant and the ETF tracks index such as Russell 3000 Growth, you know as much about your portfolio as if you had money in managed mutual fund. [1] https://www.ftserussell.com/products/indices/russell-us-style https://www.ftserussell.com/products/indices/russell-us-styl... [2] https://www.morningstar.com/indexes/ixus/rut/quote https://www.morningstar.com/indexes/ixus/rut/quote [3] https://www.marketwatch.com/investing/index/rua https://www.marketwatch.com/investing/index/rua [4] https://www.bloomberg.com/quote/RAY:IND https://www.bloomberg.com/quote/RAY:IND