STM · Option chain

STM Option Chain

Every listed STM 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
$51.28
Call open interest
28,876
Put open interest
25,641
Put/call (volume)
1.44

3,481 contracts changed hands across these expirations — 1,429 calls against 2,052 puts. Puts outtraded calls 1.44 to one.

Sep 11, 20266 days

call OI 583 · put OI 445
CallsStrikePuts
LastVolOILastVolOI
1391
401
4121
43.51
4413
1450.231325
3460.29135
46.50.30112
1470.25149
47.50.2017
480.3330129
448.53
2.4017490.50333
11949.54
53501.30118
115134
1.103855222
0.6752555326
0.35190544
0.339705531
32561
6575
1258
859
960
1261
362
164
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 17,546 · put OI 7,987
CallsStrikePuts
LastVolOILastVolOI
14085
42952
4321
644128
44.576
46450.25161,800
45.5368
460.401164
46.588
4.832030470.59276
47.574
48122
748.549
2.803291491.00297
2.50318449.579
2.622232,507501.401,2812,705
2.15241258512.107073
1.60191215210
1.28703025310
18754
0.70174,90255574
0.55230256
7257
0.28106458
5159
0.15268,20660535
261
7621
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 1,557 · put OI 283
CallsStrikePuts
LastVolOILastVolOI
3929
421
1431
4454
450.4633
9465
5470.83135
4481.00318
3491.801059
5501.7010025
851
17522.85512
1.6717535
396544
0.501175515
41456
0.631185715
3158
0.3810591
617601
461
162
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 132 · put OI 113
CallsStrikePuts
LastVolOILastVolOI
400.2517
411
431
1443
1450.80115
467
2471
484
44944
185013
2.6015512.7711
2.4412521
1.99118535
754
1.40627553
561
457
5595
32601
462
263
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 56 · put OI 35
CallsStrikePuts
LastVolOILastVolOI
3921
402
421
440.751
461.0527
471.3323
481.652
492.032
20502.4821
512.932
552
2.01154
2055
1.40256
157
159
260
162
663
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 9,002 · put OI 16,778
CallsStrikePuts
LastVolOILastVolOI
19390.251108
73400.3088110
10.80664410.451268
9420.496121
430.654174
17440.9092,116
6.903173451.002211,853
2461.255411
9471.8911442
79481.8781406
4.503168492.33272,193
4.30161,469503.0592,505
2.052884,800555.5943,553
0.923882,1206010.5022,518
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.

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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.