VMRK Options Chain Analysis

As of previous close (2026-09-02) · OPRA historical data

Spot $65.14 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

1.70

6k P / 3k C

Put/Call (Volume)

1.08

26 P / 24 C that session

30d ATM IV

21%

annualized implied move

Call wall

$67.5

839 contracts

Put wall

$62.5

1k contracts

Tail hedging

2.3×

deep-OTM puts vs calls

What the positioning says

●Defensive positioning: 1.70 puts outstanding per call — holders are hedging rather than selling.
●Call wall at $67.5 (839 contracts), 4% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $62.5 (1k contracts), 4% below spot — the hedge floor; often acts as support.
●Deep-OTM put open interest is 2.3× deep-OTM call OI — an institutional hedging ladder sits under this stock.
●30-day ATM implied volatility is 21% — calm pricing; option premium is cheap.

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.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-09-18	609	364	0.60	6
2026-10-16	2k	3k	1.99	19
2026-12-18	597	1k	2.08	8
2027-01-15	607	526	0.87	3
2027-04-16	16	525	32.81	14

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.