This page reflects CSW options positioning from the latest published market-close snapshot. Intraday price and contract changes are not displayed.
Published Snapshot
May 20, 2026 close
CSW 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 58)
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
270.00
60.45
21.00
31.00
0.00
1
0
69.1%
0.526
0.0055
-0.262
0.417
0.177
290.00
50.15
0.00
0.00
0.00
1
0
6.3%
0.000
0.0001
-0.000
0.001
0.000
300.00
11.14
12.00
22.00
0.00
5
25
71.8%
0.384
0.0051
-0.257
0.400
0.133
310.00
25.32
0.00
0.00
0.00
2
0
6.3%
0.000
0.0000
0.000
0.000
0.000
320.00
4.10
0.05
10.00
0.00
1
1
65.5%
0.275
0.0049
-0.205
0.350
0.099
330.00
17.11
0.00
0.00
0.00
2
0
12.5%
0.000
0.0000
-0.000
0.000
0.000
340.00
27.13
0.05
10.00
0.00
1
1
59.1%
0.172
0.0041
-0.141
0.267
0.064
350.00
6.00
0.40
2.40
0.00
3
40
51.6%
0.105
0.0034
-0.087
0.190
0.040
370.00
10.00
0.00
0.00
0.00
4
0
12.5%
0.000
0.0000
0.000
0.000
0.000
390.00
10.63
0.00
4.80
0.00
0
1
65.1%
0.086
0.0023
-0.095
0.165
0.032
400.00
8.00
0.00
4.80
0.00
11
21
68.2%
0.083
0.0021
-0.096
0.160
0.031
Puts
Strike
Last
Bid
Ask
Chg
Vol
OI
IV
Delta
Gamma
Theta
Vega
Rho
150.00
1.15
0.00
4.80
0.00
0
1
95.4%
-0.046
0.0010
-0.082
0.101
-0.023
170.00
0.65
0.00
4.80
0.00
1
15
77.5%
-0.056
0.0014
-0.077
0.119
-0.027
190.00
3.20
0.00
0.00
0.00
0
0
12.5%
0.000
0.0000
0.000
0.000
0.000
320.00
36.00
51.00
60.00
0.00
0
5
41.5%
-0.857
0.0052
-0.051
0.237
-0.450
340.00
75.00
72.00
82.00
0.00
0
4
58.4%
-0.832
0.0041
-0.098
0.264
-0.474
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.