CSX Options Chain Analysis

As of previous close (2026-10-06) · OPRA historical data

Spot $47.55 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.87

85k P / 98k C

Put/Call (Volume)

0.35

301 P / 851 C that session

30d ATM IV

22%

annualized implied move

Call wall

$50

15k contracts

Put wall

$32.5

17k contracts

Tail hedging

1.4×

deep-OTM puts vs calls

What the positioning says

●Call wall at $50 (15k contracts), 5% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $32.5 (17k contracts), 32% below spot — the hedge floor; often acts as support.
●30-day ATM implied volatility is 22% — 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 2026-11-06. 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	1k	237	0.20	288
2026-10-16	6k	2k	0.37	148
2026-10-23	1k	120	0.09	10
2026-10-30	1k	128	0.09	75
2026-11-06	97	48	0.49	1
2026-11-13	0	1	—	12
2026-11-20	10k	8k	0.82	153
2026-12-18	14k	11k	0.77	205
2027-01-15	28k	40k	1.43	84
2027-02-19	948	412	0.43	0
2027-03-19	5k	5k	1.13	135
2027-05-21	8	0	0.00	0
2027-06-17	18k	11k	0.62	27
2027-09-17	2k	4k	2.21	14
2028-01-21	11k	2k	0.21	0
2029-01-19	155	37	0.24	0

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.