VST Options Chain Analysis

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

Spot $140.3 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

1.19

283k P / 238k C

Put/Call (Volume)

0.83

44k P / 53k C that session

30d ATM IV

46%

annualized implied move

Call wall

$170

23k contracts

Put wall

$110

38k contracts

Tail hedging

0.9×

deep-OTM puts vs calls

What the positioning says

●Defensive positioning: 1.19 puts outstanding per call — holders are hedging rather than selling.
●Call wall at $170 (23k contracts), 21% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $110 (38k contracts), 22% below spot — the hedge floor; often acts as support.

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 2026-10-30. 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
2026-10-09	7k	6k	0.85	17k
2026-10-16	44k	44k	1.01	13k
2026-10-23	2k	10k	5.69	2k
2026-10-30	2k	2k	1.33	3k
2026-11-06	680	8k	12.49	858
2026-11-13	12	15	1.25	296
2026-11-20	27k	43k	1.62	3k
2026-12-18	44k	18k	0.42	5k
2027-01-15	47k	38k	0.80	3k
2027-03-19	9k	21k	2.31	6k
2027-04-16	2k	2k	1.00	952
2027-06-17	6k	17k	2.93	4k
2027-09-17	6k	7k	1.31	3k
2027-12-17	5k	18k	3.48	15k
2028-01-21	14k	15k	1.14	429
2028-06-16	879	2k	1.76	45
2028-12-15	7k	6k	0.77	73
2029-01-19	370	445	1.20	64

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.