Earlier today, I saw a chart of the BTCUSD/SPX chart on twitter. The structure of that chart is more accurate than the original BTCUSD chart.
And then I tested it by the same methodology but this time on SHCOMP (SSE Composite Index which is the Chinese stock market index).
The final formula is BITSTAMP:BTCUSD*FOREXCOM:USDCNH/
Here is where the magic...