MSTU · Option chain

MSTU Option Chain

Every listed MSTU strike within 25% of spot, across the next 6 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

$37.65

Call open interest

3,181

Put open interest

294

Put/call (volume)

0.02

19,711 contracts changed hands across these expirations — 19,301 calls against 410 puts. Calls outtraded puts 47.08 to one.

Sep 11, 20266 days

call OI 77 · put OI 16

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	7.05 / 10.30	—	—	28.5	0.50	0.25 / 1.33	1	1
—	6.60 / 9.60	—	1	29	0.55	0.22 / 1.65	1	2
—	6.15 / 9.75	—	—	29.5	1.63	0.30 / 1.89	1	—
8.00	7.65 / 8.75	29	29	30	0.56	0.41 / 0.80	6	4
5.55	5.50 / 8.90	4	5	30.5	—	0.43 / 2.88	—	—
4.98	5.00 / 8.55	2	—	31	1.90	0.65 / 1.70	1	1
—	4.50 / 7.45	—	—	31.5	1.00	0.75 / 1.34	3	6
5.00	4.30 / 7.85	5	4	32	1.12	0.80 / 3.25	1	—
3.78	4.00 / 7.50	3	3	32.5	—	0.91 / 3.40	—	—
—	3.50 / 7.05	—	2	33	2.50	1.05 / 2.25	1	—
—	3.05 / 6.80	—	2	33.5	—	1.39 / 2.60	—	—
3.45	3.00 / 6.30	2	3	34	1.63	1.25 / 2.49	6	2
3.67	3.40 / 5.90	4	1	34.5	2.32	1.66 / 2.50	9	—
3.65	3.70 / 5.05	13	3	35	2.25	2.20 / 2.60	71	—
3.82	3.30 / 4.65	13	—	36	2.80	2.50 / 2.85	4	—
—	1.50 / 4.95	—	—	36.5	3.42	2.65 / 5.05	1	—
2.18	1.76 / 4.00	13	2	37	—	2.95 / 5.35	—	—
3.50	2.10 / 4.00	8	1	37.5	—	3.10 / 5.60	—	—
1.97	1.79 / 4.00	7	1	38	—	3.00 / 5.95	—	—
—	0.62 / 3.70	—	2	38.5	—	3.80 / 6.30	—	—
2.08	1.20 / 3.55	1	—	39	—	3.55 / 6.60	—	—
1.86	1.41 / 2.96	8	—	39.5	—	4.00 / 6.95	—	—
2.00	1.51 / 2.94	138	1	40	—	4.30 / 7.30	—	—
1.73	1.20 / 2.57	12	—	40.5	—	4.85 / 7.65	—	—
1.31	0.11 / 2.57	1	—	41	—	4.85 / 8.00	—	—
0.65	0.65 / 2.33	6	2	42	—	5.30 / 8.80	—	—
1.00	0.83 / 2.00	26	—	43	—	6.30 / 9.55	—	—
0.90	0.01 / 2.02	2	—	44	—	7.00 / 10.35	—	—
1.20	0.85 / 1.72	80	15	45	—	8.05 / 11.20	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 1,904 · put OI 218

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	7.50 / 11.25	—	—	28.5	—	0.80 / 3.10	—	2
4.50	7.00 / 10.00	1	46	29	1.25	0.86 / 1.45	4	36
3.45	8.00 / 10.40	1	2	29.5	—	0.95 / 3.30	—	11
6.70	7.10 / 9.20	41	273	30	1.40	1.11 / 1.66	161	75
—	6.00 / 9.70	—	1	30.5	—	1.26 / 3.50	—	1
7.85	6.20 / 8.60	50	68	31	1.77	1.46 / 1.94	54	66
—	5.50 / 9.00	—	—	31.5	2.04	1.34 / 3.95	2	—
3.50	5.00 / 8.70	10	2	32	—	1.80 / 4.10	—	—
3.46	4.50 / 8.05	2	—	32.5	—	1.86 / 3.50	—	—
6.02	4.80 / 7.85	6	27	33	—	2.11 / 4.00	—	4
2.96	4.60 / 7.05	1	12	34	3.00	2.51 / 3.30	13	—
4.75	4.15 / 6.20	18	420	35	2.83	2.83 / 4.10	11	13
4.76	4.30 / 6.00	2	10	36	5.75	3.55 / 5.55	1	—
3.54	3.00 / 5.75	8	1	37	—	4.15 / 6.90	—	—
3.79	3.25 / 4.85	4	152	38	—	4.25 / 7.50	—	—
3.70	3.10 / 4.25	3	—	39	—	5.40 / 7.15	—	—
3.70	3.40 / 4.05	198	610	40	—	6.05 / 8.95	—	10
2.40	1.26 / 3.70	1	3	41	—	6.35 / 9.50	—	—
—	0.98 / 3.30	—	3	42	—	7.00 / 9.50	—	—
1.79	1.02 / 3.00	5	265	44	10.80	7.85 / 11.40	1	—
2.20	1.59 / 2.60	22	9	45	—	8.80 / 12.50	—	—
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 242 · put OI 20

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	8.00 / 11.75	—	—	28.5	—	1.27 / 3.75	—	5
5.50	7.50 / 11.30	8	9	29	—	1.54 / 3.90	—	—
—	7.50 / 10.95	—	—	29.5	—	1.66 / 2.50	—	6
5.79	7.00 / 10.25	18	6	30	—	1.85 / 2.55	—	1
5.00	6.50 / 10.00	1	1	31	—	2.20 / 4.60	—	5
—	5.55 / 9.45	—	4	32	—	2.35 / 5.00	—	1
—	5.00 / 8.95	—	1	33	—	2.66 / 5.50	—	—
5.96	4.50 / 8.25	4	6	34	—	3.45 / 6.00	—	2
—	4.05 / 7.50	—	1	35	—	3.95 / 5.80	—	—
4.25	4.70 / 6.65	1	200	36	—	4.55 / 5.50	—	—
—	3.50 / 6.45	—	1	37	—	5.05 / 7.75	—	—
2.91	3.00 / 5.60	2	—	38	—	5.70 / 8.40	—	—
4.00	3.80 / 4.80	15	8	40	—	6.25 / 9.50	—	—
—	1.58 / 4.65	—	1	42	—	7.75 / 11.00	—	—
3.00	1.65 / 3.75	200	4	44	—	9.50 / 12.50	—	—
3.00	2.35 / 3.95	3	—	45	12.50	10.40 / 13.30	1	—
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 39 · put OI 7

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	8.50 / 12.05	—	2	28.5	—	1.84 / 4.25	—	—
6.98	8.00 / 11.70	2	4	29	—	2.10 / 4.40	—	4
6.80	8.00 / 11.40	1	1	29.5	—	2.15 / 4.60	—	—
6.43	7.50 / 11.05	1	13	30	3.30	2.46 / 3.50	4	1
6.14	7.00 / 10.75	1	1	30.5	—	2.55 / 5.00	—	2
—	6.50 / 9.95	—	1	32	—	3.20 / 5.65	—	—
—	6.00 / 9.45	—	2	33	—	3.65 / 6.15	—	—
5.80	5.50 / 8.90	6	3	34	—	4.20 / 6.75	—	—
5.52	5.00 / 8.20	1	1	35	—	4.85 / 6.00	—	—
5.35	4.55 / 7.65	2	—	36	—	4.85 / 8.00	—	—
—	4.70 / 7.00	—	1	37	—	5.15 / 8.50	—	—
5.50	4.70 / 6.55	16	7	38	—	6.30 / 9.25	—	—
3.28	3.50 / 5.95	1	—	39	—	7.15 / 9.90	—	—
3.82	3.00 / 5.65	1	1	40	—	7.45 / 10.50	—	—
4.57	3.40 / 5.25	4	—	41	—	8.15 / 11.20	—	—
2.29	2.40 / 5.00	10	1	43	—	9.25 / 12.50	—	—
3.00	2.02 / 4.30	24	1	45	—	11.35 / 14.00	—	—
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 20 · put OI 3

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	8.00 / 11.80	—	16	30	—	2.95 / 5.50	—	2
5.55	8.00 / 11.10	1	1	30.5	—	3.20 / 5.80	—	—
—	6.60 / 10.25	—	—	32.5	5.25	4.15 / 5.65	2	—
6.40	6.00 / 9.45	2	1	34	—	4.90 / 7.50	—	—
—	5.50 / 8.80	—	—	35	7.00	5.35 / 6.80	1	—
5.00	5.05 / 8.80	4	—	36	—	6.00 / 8.80	—	—
—	4.70 / 7.80	—	—	37	—	6.50 / 9.50	—	1
6.38	5.65 / 6.90	2	1	38	—	6.75 / 10.00	—	—
5.40	3.90 / 6.40	1	—	40	—	8.50 / 11.45	—	—
3.15	3.00 / 5.75	1	—	42	—	9.95 / 12.50	—	—
—	2.50 / 4.95	—	1	45	—	12.00 / 14.80	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 899 · put OI 30

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	9.00 / 12.95	—	1	29	—	3.05 / 5.70	—	—
8.43	8.50 / 11.80	3	8	30	5.32	3.55 / 5.20	2	9
—	8.00 / 11.85	—	1	31	—	3.95 / 6.50	—	20
6.00	7.85 / 10.75	10	21	32	—	4.00 / 7.00	—	1
—	7.00 / 10.90	—	—	33	7.20	5.05 / 6.80	2	—
6.80	6.60 / 10.30	2	6	34	—	5.50 / 8.45	—	—
7.14	7.00 / 9.05	13	229	35	—	6.00 / 9.00	—	—
9.40	7.80 / 9.40	7	6	36	—	6.70 / 9.45	—	—
6.41	5.50 / 8.50	2	1	37	—	7.25 / 10.00	—	—
4.15	5.05 / 7.90	20	1	38	—	7.85 / 10.50	—	—
6.05	5.65 / 6.90	18,117	1	40	—	8.45 / 12.00	—	—
5.15	4.85 / 6.95	14	601	42	—	10.50 / 13.50	—	—
4.64	3.70 / 6.10	3	—	43	—	10.55 / 14.00	—	—
4.43	4.15 / 6.40	14	17	44	12.90	11.40 / 13.25	45	—
5.00	4.10 / 5.70	13	6	45	—	12.30 / 15.45	—	—
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 MSTU

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

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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.