I attached a file with the same info as the original file, but filtering on a symbol in the symbol1 or symbol2 column shows the correlations with the other 113 ETFs. This might be easier to use than the original file. I also attached a file with the same format but with correlations between 549 ETFs (not sorted by correlation).
Here are some liquid ETFs that can make big moves 2020 ETFs Covid Panic lows to 2021 high QQQ 147% 422 days SOXL(3x) 1,850% 440 days FNGU(3x) 1,881% 413 days LABU(3x) 1,236% 229 days TECL(3x) 1,068% 428 days FAS(3x) 875% 405 days