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  • KOSS vs SPY✓SelectedUSD · SPYKOSS vs SPY performance historyLatest closeAs of+4.43%11/09
Stock and ETF performance explorer

KOSS vs SPY

vs
1w1mo3mo6mo1y3y5y10yallcustom
Portfolio return
-35.2%
SPY return
+12.3%
Excess return
-47.5%
Maximum drawdown
-40.5%

Performance

Returns, benchmark comparison, and relative performance.

Performance by timeframe

Returns for 1y.

Portfolio and benchmark returns by period
PeriodPortfolioSPYExcessAlpha
1D+4.4%+2.4%+2.1%+1.5%
7D+5.4%+0.1%+5.4%+5.7%
30D-14.1%-3.3%-10.7%-10.5%
3M-11.3%-2.4%-8.9%-8.8%
6M-20.7%+2.6%-23.2%-23.9%
YTD-20.3%+11.2%-31.5%-32.8%
All-35.2%+12.3%-47.5%-45.3%

Cumulative growth

Daily Returns

Daily percentage return beside SPY.

Daily Out/Under-Performance

Portfolio return minus SPY return. Positive bars indicate outperformance.

Daily Alpha

Portfolio daily return minus β × SPY 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 1y: compounded portfolio wealth divided by compounded SPY 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…

1y analysis · Full analysis span regression · 6 months rolling