MAS · Option chain

MAS Option Chain

Every listed MAS strike within 25% of spot, across the next 4 expirations — calls and puts side by side with last price, volume and open interest, plus the closing bid and ask.

Open interest and pricing as of the close on 2026-09-03. Recomputed every morning before the open.

Spot

$71.42

Call open interest

5,206

Put open interest

3,857

Put/call (volume)

1.02

101 contracts changed hands across these expirations — 50 calls against 51 puts. Puts outtraded calls 1.02 to one.

Sep 18, 202613 days

call OI 2,010 · put OI 1,189

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	15.00 / 18.50	—	—	55	—	0.00 / 0.75	—	96
—	10.10 / 12.40	—	—	60	—	0.00 / 1.15	—	200
—	5.50 / 8.60	—	203	65	—	0.00 / 1.15	—	272
—	1.65 / 2.60	—	319	70	1.00	0.70 / 1.05	1	384
0.35	0.20 / 1.15	23	202	75	—	3.20 / 5.30	—	196
0.08	0.00 / 0.55	3	1,103	80	—	8.10 / 10.10	—	41
—	0.00 / 0.20	—	183	85	—	12.80 / 14.90	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 2,694 · put OI 2,340

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	15.40 / 17.80	—	4	55	—	0.00 / 0.80	—	27
—	10.60 / 12.90	—	60	60	—	0.00 / 1.75	—	25
—	6.20 / 8.70	—	43	65	—	0.25 / 1.20	—	34
—	2.75 / 4.50	—	193	70	—	1.65 / 2.45	—	2,171
—	0.65 / 2.00	—	90	75	—	4.10 / 6.00	—	47
—	0.30 / 0.80	—	2,175	80	—	8.40 / 10.10	—	36
—	0.00 / 0.55	—	129	85	—	12.00 / 15.60	—	—
A dash means the contract did not trade — not a price of zero.

Jan 15, 2027132 days

call OI 488 · put OI 247

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	15.80 / 20.00	—	3	55	—	0.00 / 1.50	—	11
—	11.60 / 15.00	—	86	60	—	0.10 / 2.05	—	15
—	7.60 / 11.10	—	4	65	2.52	2.20 / 2.70	50	28
6.36	6.20 / 6.70	1	12	70	—	4.00 / 4.80	—	13
4.16	3.10 / 5.00	23	28	75	—	5.50 / 9.00	—	41
—	1.85 / 3.20	—	249	80	—	8.90 / 12.20	—	139
—	0.35 / 2.35	—	106	85	—	12.10 / 16.00	—	—
A dash means the contract did not trade — not a price of zero.

Apr 16, 2027223 days

call OI 14 · put OI 81

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	17.10 / 20.60	—	—	55	—	0.15 / 2.90	—	2
—	12.80 / 17.00	—	7	60	—	0.85 / 4.00	—	—
—	9.40 / 12.70	—	—	65	—	2.55 / 5.30	—	35
—	4.90 / 8.10	—	5	75	—	6.70 / 10.80	—	19
—	3.20 / 6.00	—	—	80	—	9.80 / 13.90	—	25
—	1.80 / 4.90	—	2	85	—	14.10 / 17.40	—	—
A dash means the contract did not trade — not a price of zero.

How to read this chain

Calls sit on the left, puts on the right, and every row is one strike. The highlighted row is the strike closest to spot. Open interest is the number of contracts still outstanding at that strike — positions that exist right now. Volume is how many traded on the session shown. Open interest builds slowly and marks where positioning has accumulated; volume spikes and marks where attention went today.

Strikes with no open interest and no trades on either side are omitted, and the ladder is trimmed to within 25% of spot — the far wings are almost entirely empty and say nothing about positioning.

More on MAS

MAS options score MAS gamma walls MAS max pain MAS IV rank MAS put/call ratio MAS options flow

Weekly options-market digest

Sundays. What moved this week, what catalysts and earnings drive next week, and which 5-pillar setups stand out.

Free. One email per week. Unsubscribe with one click.

Educational, not investment advice. Options involve risk. Open interest is reported with a one-session lag by OCC, so these levels describe positioning as of the last settled session, not live intraday flow.