XBI · Delta exposure

State Street SPDR S&P Biotech XBI 156.24 -2.01 -1.27%

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ATM IV

0.303

Put Call Ratio (OI)

1.27

Put Call Ratio (Vol)

1.81

IV Rank

50.8

IV Percentile

48.8

Max Pain

158

Delta exposure (2026-09-18)

Delta

Delta approximates how many cents the option moves for a $1 move in the underlying.
A 0.50 call gains ~$0.50 if the stock goes up $1. Delta also approximates the option's probability of finishing in the money.

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|\Delta|

Moneyness

XBI State Street SPDR S&P Biotech XBI 156.24 -2.01 -1.27%

Delta exposure (2026-09-18) Delta Delta approximates how many cents the option moves for a $1 move in the underlying.A 0.50 call gains ~$0.50 if the stock goes up $1. Delta also approximates the option's probability of finishing in the money. Got it

State Street SPDR S&P Biotech XBI 156.24 -2.01 -1.27%

Delta exposure (2026-09-18)

Delta

Delta approximates how many cents the option moves for a $1 move in the underlying.
A 0.50 call gains ~$0.50 if the stock goes up $1. Delta also approximates the option's probability of finishing in the money.