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MDY · State Street SPDR S&P MidCap 400SM ETF Trust ETF

Alerts for MDY
$691.52 +0.88 (+0.13%) At close · Sep 4

Options Chain

Underlying $691.52 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 184 contracts · mixed daily-bar sessions · Jan 26, 2026–Sep 4, 2026; 87 unknown
Put / call OI
1.61
Put-heavy positioning
Open interest
15,440
as of Sep 3, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$670.00
$21.52 below spot
ATM implied vol
13.8%
market's expected move

Open interest by strike · near the money

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Bid Ask Last Strike Last Bid Ask Δ IV Vol OI
$294.50 $299.10 $0.00 $3.40
$289.50 $294.10 $0.00 $3.60
$284.50 $289.10 $0.00 $3.70
$279.50 $284.10 $0.00 $3.60
$274.50 $279.10 $0.00 $3.60
$269.50 $274.10 $0.00 $3.70
$264.50 $269.10 $0.05 $0.00 $3.60 9 3
$259.50 $264.10 $2.40 $0.00 $3.40 7 7
1 $254.50 $259.10 $1.05 $0.00 $3.40 63 63
$249.50 $254.10 $0.00 $3.40
$244.50 $249.10 $0.00 $3.40
$239.70 $244.20 $2.95 $0.00 $3.40 3 3
$234.50 $239.20 $0.00 $3.70
$229.50 $234.20 $0.00 $3.40
$224.50 $229.20 $0.00 $3.40
$219.50 $224.30 $0.78 $0.00 $3.70 3 3
$214.50 $219.30 $0.00 $3.40
$209.80 $214.20 $0.35 $0.00 $3.70 7 7
4 $204.50 $209.20 $136.80 $0.00 $3.60
1 1 $199.50 $204.20 $183.80 $0.00 $3.40
1 1 $194.50 $199.20 $178.90 $0.00 $3.40
$189.50 $194.20 $5.10 $0.00 $3.40 1 1
$184.50 $189.20 $0.00 $3.60
$179.50 $184.20 $0.00 $3.60
$174.50 $179.20 $0.00 $3.70
12 11 $169.50 $174.20 $160.94 $0.00 $3.40
$164.60 $169.20 $0.05 $0.00 $3.40 2 4
$159.60 $164.20 $0.10 $0.00 $3.60 1 1
1 1 $154.60 $159.30 $140.70 $0.10 $0.00 $3.40 2 2
$149.60 $154.30 $14.09 $0.00 $3.40 2 2
1 1 $144.60 $149.30 $147.91 $0.00 $3.40
$139.60 $144.30 $1.60 $0.00 $3.40 1 1
$134.60 $139.30 $1.60 $0.00 $3.40 1 1
1 $129.60 $134.40 $0.30 $0.00 $3.70 1 4
$124.60 $129.40 $0.00 $3.40
6 6 $119.60 $124.30 $109.30 $1.13 $0.00 $3.40 700 710
$114.60 $119.30 $0.70 $0.00 $3.40 1 1
$109.60 $114.30 $1.25 $0.00 $3.70 1 1.1k
1 1 $104.60 $109.30 $63.95 $1.43 $0.00 $3.60 1.1k 1.6k
$99.60 $104.30 $0.00 $3.40
$94.60 $99.30 $0.00 $3.40
1 3 $89.60 $94.30 $92.12 $9.20 $0.00 $3.40 7 194
4 2 $84.70 $89.30 $93.56 $2.16 $0.00 $3.40 450 450
119 5 $79.70 $84.30 $84.06 $0.40 $0.00 $3.40 1 20
407 400 $74.70 $79.40 $83.84 $9.40 $0.00 $3.40 3 138
3 2 $70.00 $74.40 $35.80 $0.45 $0.00 $3.50 1 310
66 5 $65.00 $69.40 $56.30 $0.77 $0.00 $3.50 1 13
37 25 $60.00 $64.40 $38.30 $0.05 $0.00 $3.50 6 1.1k
5 1 $55.00 $59.50 $68.88 $4.80 $0.00 $3.50 2 71
36 1 $50.00 $54.50 $68.52 $1.35 $0.00 $1.70 17 162
47 5 $45.00 $49.70 $40.51 $1.40 $0.00 $3.60 1 11
310 12 15% 0.988 $40.10 $44.80 $65.20 $1.30 $0.00 $1.75 3 600
16 5 16.7% 0.963 $35.40 $40.00 $63.70 $10.68 $0.00 $3.80 12 89
20 7 17.2% 0.933 $30.70 $35.40 $39.43 $3.10 $0.00 $2.95 1 52
5 1 16.5% 0.906 $26.20 $30.50 $32.10 $3.65 $0.85 $2.75 -0.136 19.8% 1 63
759 3 16.6% 0.857 $22.00 $26.00 $23.65 $4.05 $1.30 $3.50 -0.176 19.1% 5 1.1k
260 3 15.5% 0.813 $17.50 $21.50 $27.50 $2.95 $1.25 $4.90 -0.223 18.1% 3 415
752 5 14.6% 0.749 $13.10 $17.50 $23.80 $5.40 $2.95 $5.50 -0.288 17.7% 2 371
512 2 13.8% 0.665 $9.90 $13.00 $11.03 $9.81 $3.00 $7.00 -0.353 15.8% 1 543
61 52 12.6% 0.563 $7.10 $8.60 $7.40 $13.20 $4.30 $9.00 -0.445 15% 150 151
48 2 12% 0.439 $3.10 $7.00 $4.00 $10.10 $8.00 $11.30 -0.543 15.9% 10 72
482 1 11.6% 0.313 $1.10 $4.90 $3.40 $7.26 $9.90 $14.50 -0.645 15% 100 55
201 22 $0.00 $4.30 $1.30 $13.60 $18.40 -0.724 15.7%
160 22 $0.00 $3.70 $0.77 $18.30 $17.80 $22.50 -0.785 16.5% 305 26
60 1 $0.00 $3.60 $1.75 $22.30 $27.00 -0.828 17.7%
966 5 $0.00 $1.50 $2.00 $24.50 $27.10 $31.80 -0.852 19.5% 2 3
34 1 $0.00 $0.60 $0.10 $16.32 $32.10 $36.70 -0.866 21.6% 100 50
52 1 $0.00 $1.50 $1.00 $37.00 $41.50 -0.882 23.2%
211 10 $0.00 $1.50 $0.10 $42.00 $46.70 -0.886 25.7%
33 7 $0.00 $3.40 $0.40 $33.90 $47.00 $51.70 -0.893 27.8% 4
74 6 $0.00 $3.40 $0.21 $52.00 $56.50 -0.902 29.4%
84 6 $0.00 $2.25 $0.20 $57.00 $61.50 -0.907 31.4%
10 1 $0.00 $3.40 $2.18 $62.00 $66.50 -0.911 33.3%
9 1 $0.00 $1.70 $1.20 $96.70 $67.00 $71.50 -0.914 35.2% 1
$0.00 $3.40 $72.00 $76.50 -0.918 37.1%
1 1 $0.00 $1.70 $0.53 $77.00 $81.50 -0.921 38.9%
6 4 $0.00 $3.40 $0.65 $82.00 $86.50 -0.923 40.7%
12 18 $0.00 $3.40 $4.56 $86.90 $91.50 -0.927 42.2%
11 10 $0.00 $3.40 $2.50 $91.90 $96.50 -0.929 44%
$0.00 $3.40 $96.90 $101.50 -0.931 45.7%
$0.00 $3.40 $108.20 $101.80 $106.50 -0.934 47.1% 1
3 4 $0.00 $3.40 $1.60 $106.80 $111.50 -0.936 48.8%
$0.00 $3.40 $111.90 $116.50 -0.936 50.8%
2 1 $0.00 $3.70 $0.05 $116.90 $121.50 -0.938 52.4%
$0.00 $3.40 $121.90 $126.50 -0.939 54%
2 4 $0.00 $3.40 $1.71 $133.20 $126.90 $131.50 -0.941 55.6% 1
2 1 $0.00 $3.40 $0.05 $131.90 $136.50 -0.942 57.2%
2 $0.00 $3.40 $1.50 $136.90 $141.50 -0.943 58.8%
1 2 $0.00 $3.40 $0.95 $141.90 $146.50 -0.944 60.3%
$0.00 $3.40 $146.80 $151.50 -0.946 61.5%
$0.00 $3.40 $151.80 $156.50 -0.947 63%
$0.00 $3.40 $156.80 $161.50 -0.948 64.6%
About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Jan 26, 2026–Sep 4, 2026; 87 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. The 25 strikes around the money are shown by default — switch to "All 92" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.