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KMX · Carmax Inc · Options Chain

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Market Cap
$8.59B
Shares
141.91M

Options Chain

Underlying $61.32 · at close Sep 11, 2026 Options Calculator

Positioning

Sep 18, 2026 · 6 days to expiry · 52 contracts · mixed daily-bar sessions · Sep 25, 2025–Sep 11, 2026; 3 unknown
Put / call OI
0.37
Call-heavy positioning
Open interest
16,664
as of Sep 10, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$52.50
$8.82 below spot
ATM implied vol
43%
market's expected move

Open interest by strike

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
6 4 $43.00 $45.50 $31.18 $0.17 $0.00 $0.25 1 96
1 1 $40.80 $43.00 $27.86 $0.05 $0.00 $0.25 5 32
6 1 $38.00 $41.00 $20.40 $0.08 $0.00 $2.15 2 65
10 12 $35.50 $38.00 $12.80 $0.05 $0.00 $2.15 1 62
1 1 $33.10 $35.50 $16.81 $0.28 $0.00 $2.15 3 112
74 15 $30.60 $32.90 $31.25 $0.15 $0.00 $2.15 1 213
56 3 $28.00 $29.60 $27.00 $0.10 $0.00 $2.15 6 78
257 1 $25.60 $27.60 $24.42 $0.08 $0.00 $2.15 1 269
20 3 $23.00 $25.00 $25.18 $0.03 $0.00 $0.75 3 212
139 1 $20.70 $22.60 $22.80 $0.05 $0.00 $0.05 3 356
247 5 $18.30 $20.20 $19.70 $0.04 $0.00 $0.75 4 80
267 9 $15.40 $17.40 $15.40 $0.07 $0.00 $0.60 3 394
99 3 $13.20 $14.60 $13.05 $0.08 $0.00 $0.75 3 358
288 1 $10.60 $12.10 $12.00 $0.10 $0.00 $2.15 37 163
720 6 71.9% 0.959 $8.20 $9.70 $9.20 $0.15 $0.00 $1.05 10 196
352 6 59.1% 0.931 $5.80 $7.20 $5.80 $0.11 $0.00 $0.20 7 275
1k 21 39.7% 0.904 $3.50 $4.50 $4.25 $0.24 $0.25 $0.45 -0.158 52.2% 9 896
1.3k 11 38.7% 0.683 $1.60 $2.40 $1.85 $0.85 $0.70 $0.90 -0.336 44.3% 40 429
1.9k 1k 40.8% 0.372 $0.60 $1.00 $0.70 $2.00 $1.60 $2.55 -0.614 45.3% 13 157
1.3k 4 43.5% 0.157 $0.25 $0.30 $0.25 $4.88 $3.10 $5.50 -0.758 61% 5 62
2.8k 155 $0.00 $0.15 $0.15 $4.63 $5.50 $7.10 -0.914 53.3% 2 1
967 2 $0.00 $0.05 $0.08 $9.74 $7.90 $9.60 -0.944 62.9% 10
4 3 $0.00 $0.95 $0.12 $9.10 $13.10
53 1 $0.00 $0.05 $0.09 $32.25 $12.90 $14.80 -0.934 99.8% 10
277 1 $0.00 $0.05 $0.05 $17.60 $20.00
91 2 $0.00 $0.05 $0.10 $22.40 $25.20
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 · Sep 25, 2025–Sep 11, 2026; 3 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1170010 CUSIP 143130102 13F (30d) 208 filings 207 filers Visit website Investor relations