AU Options Chain Analysis

As of previous close (2026-10-21) · OPRA historical data

Spot $91.05 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

1.77

49k P / 28k C

Put/Call (Volume)

0.68

331 P / 488 C that session

30d ATM IV

49%

annualized implied move

Call wall

$100

4k contracts

Put wall

$80

10k contracts

Tail hedging

2.8×

deep-OTM puts vs calls

What the positioning says

●Defensive positioning: 1.77 puts outstanding per call — holders are hedging rather than selling.
●Call wall at $100 (4k contracts), 10% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $80 (10k contracts), 12% below spot — the hedge floor; often acts as support.
●Deep-OTM put open interest is 2.8× deep-OTM call OI — an institutional hedging ladder sits under this stock.

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 2026-11-20. A steep left side = expensive downside protection.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-11-20	3k	2k	0.55	412
2026-12-18	7k	8k	1.18	46
2027-01-15	7k	22k	3.29	81
2027-03-19	1k	6k	4.55	8
2027-04-16	206	212	1.03	191
2027-05-21	181	5k	28.43	1
2027-06-17	22	185	8.41	12
2027-08-20	58	2k	27.53	2
2027-09-17	0	716	—	0
2027-11-19	131	22	0.17	0
2028-01-21	9k	3k	0.39	65
2029-01-19	47	33	0.70	1

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.