ENTG Options Chain Analysis

Delayed CBOE data, snapshot 2026-08-19. Spot $152.98.

Put/Call (OI)

0.46

13k P / 30k C

Put/Call (Volume)

0.80

549 P / 688 C today

30d ATM IV

65%

annualized implied move

Call wall

$160

3k contracts

Put wall

$100

2k contracts

Tail hedging

0.9×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.46 puts per call outstanding.
●Call wall at $160 (3k contracts), 5% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $100 (2k contracts), 35% below spot — the hedge floor; often acts as support.
●30-day ATM implied volatility is 65% — the market prices very large moves; option premium is expensive.

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	14k	6k	0.44	597
2026-09-18	7k	2k	0.32	239
2026-11-20	1k	2k	1.23	312
2027-01-15	4k	1k	0.35	50
2027-02-19	456	168	0.37	14
2027-12-17	1k	1k	0.94	4
2028-01-21	2k	672	0.39	21

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