EFX Options Chain Analysis

As of previous close (2026-10-02) · OPRA historical data

Spot $140 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

2.06

5k P / 2k C

Put/Call (Volume)

1.00

386 P / 387 C that session

30d ATM IV

47%

annualized implied move

Call wall

$210

252 contracts

Put wall

$140

2k contracts

Tail hedging

0.2×

deep-OTM puts vs calls

What the positioning says

●Defensive positioning: 2.06 puts outstanding per call — holders are hedging rather than selling.
●Call wall at $210 (252 contracts), 50% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $140 (2k contracts), 0% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 4.4× 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 2026-10-16. 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 that session
2026-10-16	874	2k	2.49	620
2026-11-20	260	484	1.86	79
2026-12-18	808	691	0.86	27
2027-01-15	201	675	3.36	22
2027-04-16	205	808	3.94	25

Source: Cboe end-of-session option chains, summarized after each US market close and published from the following trading day — OPRA historical data. Under the OPRA plan options data becomes historical, and freely publishable, at the opening of the next trading session; data from the session in progress is never displayed or served here. Open interest is exchange-reported once a day. Research, not investment advice.