VRSK Options Chain Analysis

Delayed CBOE data, snapshot 2026-08-18. Spot $175.62.

Put/Call (OI)

0.69

3k P / 4k C

Put/Call (Volume)

0.13

115 P / 908 C today

30d ATM IV

36%

annualized implied move

Call wall

$240

608 contracts

Put wall

$145

893 contracts

Tail hedging

0.4×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.69 puts per call outstanding.
●Call wall at $240 (608 contracts), 37% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $145 (893 contracts), 17% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 2.5× deep-OTM put OI — speculative upside positioning dominates the tails.

Open interest by strike

All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.

IV term structure

At-the-money implied volatility per expiry.

Volatility smile

IV by strike — expiry 2026-09-18. A steep left side = expensive downside protection.

30-day implied volatility history

Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume today
2026-08-21	830	632	0.76	914
2026-09-18	2k	2k	0.88	89
2026-12-18	1k	478	0.39	13
2027-03-19	212	32	0.15	7

Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.