Compare

2 stocks, side by side
Relative performance · rebased to 100
AMGNGSK
Pair ratio · AMGN ÷ GSKRelative value, rich or cheap vs their own history

The price ratio AMGN ÷ GSK with its 1Y mean and ±1σ / ±2σ bands; the z-score is how far the ratio sits from its average. A stretched reading flags one stock as rich vs the other relative to their history, but mean-reversion isn't guaranteed (a durable re-rating from better growth or margins can keep the ratio elevated). Research tooling, not advice.

AMGNAmgenGSKGSK plc
Smart Score9/109/10
Price$351.43$51.89
1 month+3.6%+0.76%
1 year+33%+39%
5 year+72%+57%
P/E (TTM)24.317.8
P/E vs sector--43%
Market cap$182.2B$104.0B
SectorHealth CareHealthcare
Risk / Return · past yearAnnualized return vs volatility, up-and-left is more reward for less risk.
Correlation · do they move together?Pairwise daily-return correlation over the past year, high = one bet, low = diversifying.