This page reflects CTAS options positioning from the latest published market-close snapshot. Intraday price and contract changes are not displayed.
Published Snapshot
May 20, 2026 close
CTAS Options Chain
Data as of market close May 20, 2026
Compare calls and puts side by side with OI, volume, IV, and positioning context.
Control Row
Next expiry (DTE 2)
Blank greek cells usually mean usable implied volatility was unavailable for that contract in the market-close snapshot.
Open Interest by Strike
IV Skew
Volume by Strike
Calls
Strike
Last
Bid
Ask
Chg
Vol
OI
IV
Delta
Gamma
Theta
Vega
Rho
160.00
7.60
9.10
13.50
0.00
2
2
104.3%
0.824
0.0196
-0.871
0.033
0.007
165.00
4.23
4.60
7.80
0.00
1
180
62.5%
0.801
0.0352
-0.569
0.035
0.007
167.50
2.89
3.30
4.80
0.00
9
16
39.0%
0.791
0.0580
-0.371
0.036
0.007
170.00
4.27
2.20
2.60
0.00
25
45
29.8%
0.649
0.0980
-0.363
0.047
0.006
172.50
1.18
0.90
1.30
-1.67
163
9
29.2%
0.388
0.1036
-0.362
0.049
0.004
175.00
1.62
0.30
0.60
0.00
2
52
30.1%
0.179
0.0683
-0.253
0.033
0.002
177.50
0.71
0.05
0.65
0.11
1
20
42.3%
0.135
0.0405
-0.294
0.028
0.001
180.00
0.65
0.00
0.50
0.18
1
8
48.2%
0.088
0.0261
-0.245
0.020
0.001
185.00
0.10
0.00
0.35
-0.55
10
26
51.5%
0.024
0.0085
-0.091
0.007
0.000
190.00
0.02
0.00
0.75
-0.48
9
12
76.5%
0.037
0.0083
-0.195
0.010
0.000
195.00
0.65
0.00
0.75
0.37
1
31
90.8%
0.030
0.0059
-0.195
0.009
0.000
200.00
0.65
0.00
1.30
0.00
0
1
117.7%
0.042
0.0060
-0.335
0.011
0.000
225.00
0.12
0.00
1.30
0.00
0
2
181.1%
0.025
0.0025
-0.334
0.007
0.000
Puts
Strike
Last
Bid
Ask
Chg
Vol
OI
IV
Delta
Gamma
Theta
Vega
Rho
135.00
0.50
0.00
1.30
0.00
0
1
172.1%
-0.026
0.0028
-0.332
0.008
-0.000
150.00
0.67
0.00
1.30
0.00
4
4
109.0%
-0.045
0.0069
-0.328
0.012
-0.000
155.00
0.10
0.00
1.30
0.00
1
3
88.1%
-0.058
0.0103
-0.321
0.015
-0.001
157.50
0.17
0.00
1.25
0.00
1
1
76.8%
-0.065
0.0130
-0.306
0.016
-0.001
160.00
0.15
0.00
1.30
0.00
1
34
67.0%
-0.079
0.0173
-0.311
0.019
-0.001
162.50
0.10
0.00
1.30
0.00
5
8
56.1%
-0.096
0.0239
-0.301
0.022
-0.001
165.00
0.20
0.15
0.35
0.00
32
35
36.5%
-0.077
0.0313
-0.166
0.018
-0.001
167.50
0.78
0.35
0.65
0.35
2
22
33.0%
-0.170
0.0604
-0.261
0.032
-0.002
170.00
1.05
0.85
1.25
0.05
36
23
30.0%
-0.352
0.0976
-0.346
0.047
-0.003
175.00
4.74
3.40
6.40
0.74
1
6
69.3%
-0.648
0.0422
-0.802
0.047
-0.006
180.00
8.40
7.00
11.30
0.00
1
0
94.8%
-0.746
0.0266
-0.946
0.041
-0.008
How to Read the Chain
Use this market-close chain snapshot to compare liquidity, pricing, IV, and per-contract greeks across the active expiration.
How to scan it
Start with strike, bid/ask spread, open interest, and volume. Then use IV and greeks to decide whether a contract fits your directional, income, or volatility idea.
What matters first
Clean fills matter before a contract looks mathematically attractive. A thin market can erase the edge you think you found.
What can mislead you
Low premium, high IV, or one convenient delta do not make a trade by themselves. Check how far the strike sits from spot, expected move, and the event calendar.
Greeks are close-of-day estimates, and blank greek cells usually mean usable implied volatility was unavailable for that contract.