MICROSOFT CORP (MSFT) Open Interest

MICROSOFT CORP (MSFT) has 2,426,729 call contracts and 1,241,869 put contracts open across all listed expirations — a put/call open interest ratio of 0.51. Open interest counts the contracts currently outstanding at each strike. This page shows where MSFT positioning concentrates, which strikes act as walls, and how the totals have trended over the past year.

Data as of Aug 24, 2026, 3:55 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.

Last close
$488.21
52-week range
$353.28 – $542.99
ATM IV (30d)
26.7%
IV rank
5 / 100
Low
Expected move
±$38.57 (±7.9%)
Put/call OI
0.51
Call-heavy
Max pain
$430
↓ 11.9% below close
Next earnings
Oct 26, 2026

MSFT Open Interest by Strike

054.8K109.5K164.3KSpotMax painCall wallPut wall350400435470500530575

MSFT open interest by strike, all expirations combined — calls in green, puts in red.

Total call open interest2,426,729
Total put open interest1,241,869
Put/call OI ratio0.51
Open interest rank (31 day)0 / 100
Call wall (largest call OI)$575
Put wall (largest put OI)$350
Top volume strike$490
Volume / OI ratio0.86

MSFT Open Interest Trend

855.8K1.5M2.1M2.8M3.4MCall OIPut OIFeb '26May '26Aug '26

MSFT total call vs. put open interest, past year.

0.410.450.490.530.57Feb '26May '26Aug '26

MSFT put/call open interest ratio, past year.

A put/call open interest ratio of 0.51 means meaningfully more calls than puts are outstanding — a call-heavy, typically bullish positioning profile. In total, 2,426,729 call contracts and 1,241,869 put contracts are open across all listed expirations. The put/call OI ratio is little changed from 0.52 in Feb '26 to 0.51 today.

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MSFT Options FAQ

What is MSFT's put/call ratio?

MSFT's put/call open interest ratio is 0.51 as of Aug 24, 2026, with 1,241,869 put contracts and 2,426,729 call contracts outstanding.

Which MSFT strikes have the highest open interest?

As of Aug 24, 2026, the largest call open interest sits at $575 (the call wall) and the largest put open interest sits at $350 (the put wall). Strikes with heavy open interest often act as reference levels because a lot of hedging activity is anchored to them.

Is MSFT open interest unusually high right now?

MSFT's total open interest ranks 0 out of 100 versus the past 31 trading days as of Aug 24, 2026 — toward the bottom of its recent range, so positioning is comparatively light.

Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.

Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.