How options on the VIX expire and settle — and why the rules trip up traders who assume they work like SPY or QQQ options. They don’t.
The one thing to remember: VIX options are European-style, cash-settled, and settle to a special opening print (the VRO) on a Wednesday morning — not to the VIX close, and not on a Friday.
1 · First, what is the VIX?
The VIX is the Cboe Volatility Index — a real-time estimate of how much the market expects the S&P 500 to move over the next 30 days. It is calculated from live S&P 500 index option (SPX) prices, not from stock prices. High VIX = the market is pricing in big swings (fear); low VIX = calm.
Crucially, you cannot buy or hold the VIX itself — it is just a calculated number. Everything tradeable is a derivative of it: VIX futures, VIX options, and the ETFs/ETNs built on those futures. That single fact drives every quirk below.
2 · European vs American style — and why it matters here
Option “style” controls when you can exercise:
AMERICAN
e.g. single stocks
Exercise any time up to and including expiration. Early assignment is possible — you can be called away before expiry.
EUROPEAN
VIX, SPX, index options
Exercise only at expiration. No early assignment. Your outcome is fixed by one settlement value on one morning.
Why it matters for VIX: because VIX options are European, you can never exercise early to escape a bad position — you can only trade out of it in the market before the last trading day. Once you hold into settlement, you are locked into the VRO print, whatever it turns out to be.
3 · When do they expire?
VIX options do not follow the normal third-Friday equity cycle. The rule:
Expiration = the Wednesday that is 30 days before the following month’s third-Friday SPX expiration. If that Wednesday (or the Friday 30 days later) is an exchange holiday, expiration shifts to the business day before (usually the Tuesday). The last trading day is the business day before expiration.
Expiration-day timeline (Wednesday)
VIX options settle at the OPEN, not the close. This is the opposite of equity options.
4 · The VRO settlement print (the part people get wrong)
When a VIX option expires, its cash value is set by the Special Opening Quotation (SOQ), published under the ticker VRO. Key points:
It is built from the opening prices of the strip of SPX options with exactly 30 days left — calculated Wednesday morning.
It is not the VIX spot open, and not the 4:15 PM VIX close. VRO routinely differs from both.
Because it uses actual opening trade prices (not mids), it can gap away from where VIX looked the day before.
Common myth: “VIX weeklies expire Tue/Wed/Thu and settle to the 4:15 PM VIX close.” False. VIX weeklies (VIXW) and monthlies both settle to the Wednesday-morning VRO open. Holding into settlement is a bet on the opening print, which is why many traders close on the Tuesday before.
6 · What happens if you don’t close before settlement?
If you hold a VIX option into expiration, nothing needs doing on your part — it resolves automatically against the VRO print. The outcome depends only on whether it finished in the money (ITM) or out of the money (OTM):
ITM AT SETTLEMENT
has intrinsic value
Auto-exercised for cash. A long gets a cash credit = intrinsic × $100. A short gets debited the same. No shares — VIX is cash-settled.
OTM AT SETTLEMENT
no intrinsic value
Expires worthless. A long loses the whole premium paid. A short keeps the entire premium collected. Nothing to exercise.
Position at VRO
Long (you bought)
Short (you sold)
Call ITM (VRO > strike)
Cash credit
Cash debit
Call OTM (VRO ≤ strike)
Worthless — lose premium
Keep premium
Put ITM (VRO < strike)
Cash credit
Cash debit
Put OTM (VRO ≥ strike)
Worthless — lose premium
Keep premium
The settlement-gap risk: because the VRO is a Wednesday-morning opening print, an option that looked safely OTM on Tuesday can flip ITM (or vice-versa) on the open — and you can no longer trade out of it. This is exactly why many traders close on the Tuesday rather than gamble on the print.
7 · How much does settlement cost? (Schwab focus)
The good news: at most large brokers, letting an option settle is cheaper than trading out of it.
$0
Schwab exercise / assignment fee
$0.65
Per contract to trade (open/close)
Auto
ITM settles automatically
DNE
File to block auto-exercise
Charles Schwab charges no commission or per-contract fee on exercise or assignment. A VIX option that settles ITM simply posts a cash credit/debit — you pay nothing extra to Schwab for the settlement itself.
By contrast, closing early costs the normal $0.65 per contract (plus pennies of regulatory fees). So trading out on Tuesday has a small cost; letting it settle has none.
You can file a DNE (Do Not Exercise) instruction to stop an ITM option being auto-exercised — rarely needed for cash-settled VIX, but available.
The real “cost” of holding to settlement is not fees — it is price risk at the VRO open, plus the wide bid/ask if you wait too long to trade out.
Source (II). Charles Schwab Pricing Guide and options-expiration education (2026): no commission/per-contract fee on exercises & assignments; $0.65 per contract standard options pricing; ITM auto-exercise, OTM expires worthless, DNE instructions available.
8 · Weekly vs monthly — same rules, different cadence
Weeklies (VIXW) and monthlies share identical settlement mechanics. Only the schedule and time-decay profile differ.
Wed
Weekly expiry day
Wed
Monthly expiry day
OPEN
Settlement timing (both)
VRO
Settlement ticker (both)
Attribute
Weekly (VIXW)
Monthly (VIX)
Expiry day
Wednesday
Wednesday (30d before 3rd-Fri SPX)
Settlement
Open (VRO)
Open (VRO)
Style
European
European
Theta decay
Fast (days)
Gradual (weeks)
Typical use
Short, sharp event trades
Hedging, premium selling
Source (III). Cboe VIX options specification and Macroption VIX expiration rules — up to six weekly (VIXW) plus up to twelve monthly expirations may be listed; weeklies also expire on Wednesdays.
9 · Why the “true underlying” is the future, not spot VIX
VIX options track the VIX future of the same expiry far more closely than they track spot VIX. Since both the option and that future settle to the same VRO, they converge together into expiration. This is why an option can look “mispriced” against spot VIX yet be perfectly fair against its future.
Practical takeaway: judge a VIX option against its matching VIX future, not against the spot VIX number on your screen. Broker-shown Greeks (delta, theta) are often computed off spot VIX and can be misleading.
Source (IV). Six Figure Investing and projectoption analyses of VIX option pricing relative to VIX futures and the shared VRO settlement.
10 · “Isn’t there an after-close settlement?”
Good question — and the answer is a subtle yes, but only for a different product. There are two things that both get called “VIX options,” and they settle at opposite ends of the day:
VIX INDEX OPTIONS
VIX / VIXW — since 2006
AM-settled. Wednesday-morning OPEN, cash, via the VRO / SOQ. This is what most people mean by “VIX options.”
OPTIONS ON VIX FUTURES
launched Oct 2024
PM-settled (afternoon close), physically settled into the nearest VIX future, and can expire every weekday.
So both exist: the classic VIX index options settle in the morning (AM); the newer options-on-VIX-futures settle at the close (PM) and deliver a futures contract instead of cash. If a platform shows an “after-close” VIX settlement, it is the futures-option product, not the classic index option.
AM vs PM settlement — same trading day
Where in the day each product locks its value.
Source (V). Cboe / CCH “Cboe options on VIX futures” briefing (launch 14 Oct 2024): PM-settled, physically settled into the nearest VIX future, near-daily expirations — versus AM-settled cash VIX index options.
11 · Contango & backwardation (why the curve matters)
Because everything settles to a future, the shape of the VIX futures curve drives most volatility-product behaviour:
The two curve states
Front-month vs later months. This is what creates roll decay in VIX ETFs.
Contango (calm)Backwardation (stress)
Why traders care: in contango, VIX ETFs like VXX bleed value over time as futures “roll down” toward lower spot — a built-in decay. In backwardation (market stress) that decay flips to a tailwind. The curve, not spot VIX, is the real story.
Sources are cited inline by section, marked Source (I)–(V). Figures are illustrative; rules follow the current Cboe product specification and may change.
Article rev 2 · last revised 8 Jul 2026knowbase-vix-expiration
