# Volatility Strike Skew for COST

> Implied volatility strike skew chart for COST with option volume overlay.

Data as of Oct 21, 2026 (end of day). **Data is delayed**: the latest session is Nov 11, 2026. [Subscribe](https://www.optionistics.com/subscribe) to get the latest end-of-day data.

Volume-weighted call and put implied volatility per strike for the chosen expiration, with option volume bars.

## COST quote

Quote as of Nov 11, 2026.

| Field | Value |
|---|---|
| Last | 1,087.61 |
| Change | +21.47 |
| Open | 1,081.00 |
| Previous | 1,066.14 |
| High | 1,091.92 |
| Low | 1,072.00 |
| Bid | - |
| Ask | - |
| Volume | 2,203,018 |
| Trades | - |
| Dividend | 1.47 |
| Yield | 0.58% |
| Ex-Div | Feb 1, 2027 |
| Split Date | Jan 14, 2000 |
| Impl Vol | 22.5% |
| Hist Vol | 20.0% |
| Opt Volume | 61,602 |
| Open Int | 324,612 |

On Oct 21, 2026, COST options across all expirations averaged 22.4% implied volatility for calls and 25.8% for puts (volume-weighted): puts trade 3.4 points above calls, the usual downside skew.

Strike skew, all expirations, near the money, volume accumulated over 1 day.

All expirations: 2026-10-23, 2026-10-30, 2026-11-06, 2026-11-13, 2026-11-20, 2026-11-27, 2026-12-18, 2027-01-15, 2027-02-19, 2027-03-19, 2027-04-16, 2027-06-17, 2027-09-17, 2028-01-21, 2028-06-16, 2028-09-15, 2028-12-15, 2029-01-19.

Change the view with query parameters: `view` (strike, time), `expiration` (strike skew: all or YYYY-MM-DD), `zoom` (strike skew: in, out, all), `strike` (time skew: one strike or all), `days` (1-5 or 10 sessions of volume), `date` (an earlier session: 2026-10-21, 2026-10-20, 2026-10-19, 2026-10-16, 2026-10-15, 2026-10-14). Example: `/screener/volatility-skew/COST.md?view=time`.

| Strike | Volume | Call IVol | Put IVol |
|---|---:|---:|---:|
| All | 21,392 | 22.4% | 25.8% |
| 840.00 | 135 | 29.8% | 58.7% |
| 845.00 | 124 | - | 61.3% |
| 850.00 | 56 | 38.2% | 31.5% |
| 855.00 | 39 | 32.7% | 30.7% |
| 860.00 | 148 | 29.1% | 46.5% |
| 865.00 | 50 | 31.4% | 31.0% |
| 870.00 | 172 | 26.5% | 53.1% |
| 875.00 | 87 | 25.9% | 29.5% |
| 880.00 | 236 | 43.5% | 37.8% |
| 885.00 | 113 | 30.0% | 28.7% |
| 890.00 | 134 | 25.8% | 25.5% |
| 895.00 | 122 | 28.6% | 32.9% |
| 897.50 | 32 | - | 56.6% |
| 900.00 | 310 | 27.9% | 24.5% |
| 905.00 | 28 | - | 23.9% |
| 910.00 | 276 | 38.1% | 25.0% |
| 915.00 | 192 | 24.6% | 25.4% |
| 920.00 | 301 | 22.9% | 23.3% |
| 922.50 | 63 | - | 26.4% |
| 925.00 | 229 | 23.8% | 22.9% |
| 927.50 | 36 | - | 25.4% |
| 930.00 | 235 | 26.5% | 25.3% |
| 935.00 | 207 | 28.1% | 20.9% |
| 937.50 | 48 | 31.5% | 29.5% |
| 940.00 | 271 | 24.6% | 23.2% |
| 942.50 | 4 | - | 28.2% |
| 945.00 | 195 | 27.0% | 21.5% |
| 947.50 | 27 | 27.9% | 30.7% |
| 950.00 | 502 | 24.2% | 24.3% |
| 952.50 | 297 | - | 21.6% |
| 955.00 | 575 | 28.1% | 21.2% |
| 957.50 | 33 | - | 21.7% |
| 960.00 | 403 | 22.4% | 22.2% |
| 965.00 | 322 | 24.2% | 21.2% |
| 970.00 | 694 | 21.3% | 21.3% |
| 975.00 | 340 | 20.1% | 21.3% |
| 980.00 | 542 | 24.1% | 20.4% |
| 985.00 | 242 | 21.6% | 20.6% |
| 990.00 | 731 | 20.3% | 19.5% |
| 995.00 | 485 | 21.0% | 18.5% |
| 1,000.00 | 1,164 | 20.3% | 20.2% |
| 1,005.00 | 309 | 20.6% | 18.8% |
| 1,010.00 | 1,089 | 20.0% | 18.7% |
| 1,015.00 | 1,148 | 20.4% | 18.9% |
| 1,020.00 | 1,224 | 20.4% | 23.7% |
| 1,025.00 | 3,717 | 21.8% | 17.3% |
| 1,030.00 | 824 | 22.4% | 17.6% |
| 1,035.00 | 96 | 22.0% | 18.2% |
| 1,040.00 | 719 | 24.0% | 18.9% |
| 1,045.00 | 77 | 26.0% | 18.3% |
| 1,050.00 | 269 | 24.2% | 19.7% |
| 1,055.00 | 33 | 23.9% | - |
| 1,060.00 | 182 | 20.5% | 20.3% |
| 1,065.00 | 107 | 20.7% | - |
| 1,070.00 | 177 | 22.6% | 20.6% |
| 1,075.00 | 127 | 21.3% | - |
| 1,080.00 | 284 | 21.6% | 20.2% |
| 1,085.00 | 28 | 21.6% | 17.3% |
| 1,090.00 | 36 | 26.2% | - |
| 1,095.00 | 52 | 26.7% | 19.3% |
| 1,100.00 | 188 | 26.3% | 21.5% |
| 1,105.00 | 11 | 40.2% | - |
| 1,110.00 | 35 | 26.2% | - |
| 1,120.00 | 166 | 21.8% | 26.7% |
| 1,130.00 | 36 | 22.0% | - |
| 1,135.00 | 59 | 55.2% | - |
| 1,140.00 | 108 | 41.6% | 21.2% |
| 1,145.00 | 58 | 67.6% | 112.9% |
| 1,150.00 | 33 | 54.8% | 115.5% |

## More for COST

- [Quote](https://www.optionistics.com/quotes/stock-quotes/COST.md)
- [Option chain](https://www.optionistics.com/quotes/stock-option-chains/COST.md)
- [Price history](https://www.optionistics.com/quotes/stock-prices/COST.md)
- [10 day snapshot](https://www.optionistics.com/snapshot.md?symbol=COST)
- [Strike Pegger (max pain)](https://www.optionistics.com/quotes/strike-pegger/COST.md)
- [Volatility skew](https://www.optionistics.com/screener/volatility-skew/COST.md)
- [Put/call ratio](https://www.optionistics.com/screener/put-call-ratio/COST.md)
- [Trade finder](https://www.optionistics.com/screener/stock-trade-finder/COST.md)

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