Option Greeks measure how Blackrock Inc (BLK) option prices respond to changes in the stock price (delta and gamma), the passage of time (theta), implied volatility (vega), and interest rates (rho). These charts plot each Greek by strike, so you can see where an expiration's price risk, time decay, and volatility exposure are concentrated. BLK implied volatility is in the lower part of its one-year range, which keeps delta and gamma in a narrower range of strikes than usual.
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BLK Option Greeks FAQ
What are option Greeks?
Option Greeks measure how an option's price responds to changes in the stock price (delta and gamma), time (theta), implied volatility (vega), and interest rates (rho).
How do I read the BLK Greeks charts?
Gamma, theta, and vega are largest for strikes near the Blackrock stock price and shrink for strikes far above or below it. Theta grows as expiration gets closer, while vega is larger for expirations further out. Call delta runs from 0 to 1 and put delta from -1 to 0, near 0.50 and -0.50 at the money, and roughly estimates the chance that an option finishes in the money.
How does implied volatility affect BLK's Greeks?
Blackrock IV rank is 22, so implied volatility is in the lower part of its one-year range. Higher implied volatility raises option premiums and daily time decay (theta), and spreads delta and gamma across a wider range of strikes. Over the past year, 30-day implied volatility ranged from 21.7% to 43.0%. See the BLK implied volatility history for a longer view.
How much gamma and delta do BLK options carry in total?
Across all open Blackrock options on Nov 4, 2026, net gamma exposure was $56.87M and net delta exposure was $1.46B per 1% move in the stock. The BLK gamma exposure chart shows where that gamma sits by strike.
What is Blackrock Inc?
BlackRock is the largest asset manager in the world, with $15.345 trillion in assets under management at the end of June 2026.