PSX Options Chain Analysis

As of previous close (2026-10-16) · OPRA historical data

Spot $293.17 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.93

45k P / 48k C

Put/Call (Volume)

0.45

1k P / 3k C that session

30d ATM IV

46%

annualized implied move

Call wall

$300

3k contracts

Put wall

$200

6k contracts

Tail hedging

10.2×

deep-OTM puts vs calls

What the positioning says

●Call wall at $300 (3k contracts), 2% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $200 (6k contracts), 32% below spot — the hedge floor; often acts as support.
●Deep-OTM put open interest is 10.2× 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 2026-11-13. 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
2026-10-23	1k	1k	1.35	600
2026-10-30	1k	569	0.48	162
2026-11-06	501	165	0.33	139
2026-11-13	278	96	0.35	26
2026-11-20	7k	6k	0.89	444
2026-11-27	80	28	0.35	19
2026-12-18	8k	7k	0.79	329
2027-01-15	9k	8k	0.90	488
2027-02-19	2k	1k	0.66	35
2027-03-19	2k	2k	0.87	42
2027-05-21	265	133	0.50	6
2027-06-17	2k	3k	1.47	270
2027-08-20	271	23	0.08	24
2027-09-17	254	445	1.75	85
2027-11-19	163	118	0.72	9
2028-01-21	5k	4k	0.74	18
2029-01-19	2k	273	0.17	3

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.