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  • WELL vs BIIB✓SelectedUSD · BIIBWELL vs BIIB performance historyLatest closeAs of-0.08%09/10
Stock and ETF performance explorer

WELL vs BIIB

vs
1w1mo3mo6mo1y3y5y10yallcustom
Portfolio return
+349.9%
BIIB return
-26.8%
Excess return
+376.7%
Maximum drawdown
-63.3%

Performance

Returns, benchmark comparison, and relative performance.

Performance by timeframe

Returns for 2016-09-10 to 2026-09-10.

Portfolio and benchmark returns by period
PeriodPortfolioBIIBExcessAlpha
1D-0.1%+2.2%-2.3%-0.2%
7D-2.2%-4.0%+1.8%-2.0%
30D+4.7%+5.7%-1.0%+4.3%
3M+11.9%+10.9%+1.0%+11.1%
6M+14.3%+14.3%0.0%+13.1%
YTD+28.4%+22.4%+6.0%+26.4%
1Y+42.3%+51.1%-8.8%+38.2%
3Y+202.6%-16.8%+219.4%+202.9%
5Y+206.5%-28.1%+234.7%+206.4%
All+349.9%-26.8%+376.7%+342.1%

Cumulative growth

Daily Returns

Daily percentage return beside BIIB.

Daily Out/Under-Performance

Portfolio return minus BIIB return. Positive bars indicate outperformance.

Daily Alpha

Portfolio daily return minus β × BIIB return. Early observations use the first valid beta; later observations use the trailing beta estimated for each date.

Cumulative Out/Under-Performance

Relative wealth over 2016-09-10 to 2026-09-10: compounded portfolio wealth divided by compounded BIIB wealth, less one. Both series rebase at the selected span's start.

Cumulative Alpha

Compounded beta-adjusted residual returns apply the first valid beta to early observations, then the trailing beta ending on each date.

Updating return analytics…

2016-09-10 to 2026-09-10 analysis · Full analysis span regression · 6 months rolling