Berkshire Hathaway xStock vs MicroStrategy xStock

MicroStrategy xStock (MSTRX) is 57.4× the size of Berkshire Hathaway xStock (BRK.BX) by market capitalisation. Over the past 30 days, MSTRX is ahead by 4.8 percentage points (BRK.BX -0.1% against MSTRX +4.7%). Their daily returns move barely in opposite directions (correlation -0.13 across 24 shared trading days). MSTRX has been the more volatile of the two, at 101% annualised against BRK.BX's 16%.

Correlation: -0.13
Size ratio: 1 : 57.4
Ahead over 30 days: MSTRX

Berkshire Hathaway xStockBRK.BX

$557.6400

24h: +0.42%
Market cap: $2.25M
Volume 24h: $48,872
Volatility (ann.): 16%

MicroStrategy xStockMSTRX

$136.1500

24h: +2.03%
Market cap: $129.34M
Volume 24h: $2.95M
Volatility (ann.): 101%

BRK.BX 1.7%Share of the two combined market caps98.3% MSTRX

Performance

BRK.BXMSTRX

7 days+0.12%-3.45%BRK.BX
30 days-0.07%+4.70%MSTRX

Correlation

-0.13over 24 shared trading days

−1 opposite0 unrelated+1 in step

7d: insufficient data30d: insufficient data90d: insufficient data1y: insufficient data

Measured on daily returns rather than on prices. Two assets that both simply trend upward score near 1.0 on raw prices whether or not they move together, so returns are what answer the question people mean by correlation.

Risk & extremes

Metric	BRK.BX	MSTRX
Max drawdown (400d)	-3.5%	-18.3%
Risk-adjusted return (90d)	0.00	0.30

Relative strength over 90 days: MSTRX outperformed BRK.BX by 16.7% — measured on the BRK.BX/MSTRX ratio, so it holds regardless of market direction.

Berkshire Hathaway xStock →MicroStrategy xStock →