MSFT Options Chain Analysis

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

Spot $517.27 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.56

1.3M P / 2.4M C

Put/Call (Volume)

0.44

142k P / 319k C that session

30d ATM IV

32%

annualized implied move

Call wall

$575

167k contracts

Put wall

$350

67k contracts

Tail hedging

1.0×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.56 puts per call outstanding.
●Call wall at $575 (167k contracts), 11% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $350 (67k contracts), 32% 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
2026-10-05	9k	10k	1.03	43k
2026-10-07	6k	2k	0.38	17k
2026-10-09	50k	22k	0.44	49k
2026-10-12	2k	818	0.54	2k
2026-10-14	1k	239	0.22	923
2026-10-16	353k	208k	0.59	33k
2026-10-23	27k	10k	0.38	5k
2026-10-30	69k	14k	0.20	8k
2026-11-06	3k	11k	3.40	3k
2026-11-13	261	501	1.92	389
2026-11-20	231k	129k	0.56	21k
2026-12-18	570k	181k	0.32	7k
2027-01-15	392k	230k	0.59	8k
2027-03-19	98k	107k	1.10	4k
2027-04-16	8k	5k	0.71	1k
2027-06-17	121k	92k	0.76	2k
2027-09-17	26k	24k	0.89	876
2027-12-17	89k	54k	0.60	2k
2028-01-21	95k	81k	0.85	1k
2028-06-16	34k	26k	0.76	426
2028-12-15	97k	66k	0.68	2k
2029-01-19	5k	6k	1.32	2k

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.