SPXW Options: What They Are, How They Settle & Complete SPX vs SPXW Guide

SPXW options are weekly and daily expiration options on the S&P 500 index, listed on the Cboe Options Exchange. If you trade index options — or want to start — understanding the difference between SPXW and standard SPX contracts is essential. SPXW options have exploded in popularity thanks to the rise of 0DTE (zero days to expiration) trading, offering traders a way to express short-term directional views, hedge portfolios around events, and collect premium with precise timing. In this comprehensive guide, you will learn exactly what SPXW means, how these options settle, their tax treatment, proven trading strategies, and how to analyze them in Excel using MarketXLS.

What Does SPXW Mean?

SPXW stands for S&P 500 Weekly Options. The "W" suffix distinguishes these contracts from the traditional monthly SPX options that have been trading since 1983. Cboe introduced weekly SPX options in 2005, and over the years expanded the lineup to include expirations on every trading day of the week.

The ticker symbol "SPXW" appears on your broker's option chain to indicate that the contract is a weekly or daily expiration — not a standard monthly. However, in practice, the underlying index is the same S&P 500 (ticker ^SPX). The only differences are in expiration frequency and settlement methodology.

Key facts about SPXW:

• Underlying: S&P 500 Index (same as SPX)
• Contract multiplier: $100 per index point
• Exercise style: European (cannot be exercised early)
• Settlement: Cash-settled, PM settlement (based on closing prices)
• Expiration: Available for every trading day (Monday through Friday)
• Listing exchange: Cboe Options Exchange

The SPXW designation is primarily an administrative label. From a risk and payoff perspective, SPXW options behave identically to SPX options — they are European-style, cash-settled index options. The critical difference is when and how they settle, which we cover in detail below.

SPX vs SPXW — Complete Comparison

One of the most common questions traders ask is: what is the difference between SPX and SPXW? While both are options on the S&P 500 index, they differ in several important ways. Here is a side-by-side comparison:

Expiration Frequency

Standard SPX options expire on the third Friday of each month — twelve expirations per year. SPXW options, by contrast, now expire every single trading day. This means roughly 252 expirations per year. The expansion to daily expirations happened gradually: Cboe first added Monday and Wednesday weeklies, then Tuesday and Thursday, effectively covering every trading day.

Settlement Timing: AM vs PM

This is the most consequential difference. Standard monthly SPX options use AM settlement, meaning the settlement value is determined by the Special Opening Quotation (SOQ) on the morning of expiration (Friday). The SOQ is calculated from the opening prices of each of the 500 stocks in the index. If some stocks open late due to news or volatility, the SOQ calculation can be delayed and the final settlement value can differ significantly from where the index closed the night before or where futures are trading pre-market.

SPXW options use PM settlement, meaning they settle based on the S&P 500 closing price on expiration day. This is more intuitive for most traders because you can watch the settlement value in real time as the market approaches the close.

Why PM Settlement Matters

AM settlement creates overnight risk. Suppose you sell an SPX iron condor expiring on a Friday. The market closes Thursday evening with the index at 5,800. Overnight, a geopolitical event sends futures down 50 points. The Friday SOQ opens at 5,750, and your short put spread is now in the money — even though the index was safely between your strikes at Thursday's close.

With SPXW PM settlement, you have the entire trading day to manage or close the position. The settlement value is the closing price, which you can observe and react to in real time.

Why Trade SPXW Options?

SPXW options have become the most actively traded options contracts in the world. Here are the primary reasons traders choose them:

1. Precise Expiration Timing

With daily expirations, you can match your option position to an exact catalyst: an FOMC announcement, a jobs report, an earnings season kickoff, or any other event. Instead of buying a weekly option with three days of time value you don't need, you can purchase a 0DTE or 1DTE option that expires the same day or the next.

2. Lower Absolute Premium

Shorter-dated options have less time value. A 0DTE SPXW at-the-money straddle might cost 30-40 points ($3,000-$4,000 per contract), whereas a 30-day SPX straddle might cost 120+ points. For traders who want leveraged exposure to intraday moves without committing large capital, SPXW offers an efficient vehicle.

3. Rapid Time Decay for Sellers

If you are a premium seller, SPXW options are attractive because theta decay accelerates dramatically in the final days and hours before expiration. A 0DTE credit spread can capture nearly all of its maximum profit within a single trading session if the market cooperates.

4. No Early Exercise Risk

Like standard SPX, SPXW options are European-style. You never have to worry about assignment before expiration. This simplifies position management considerably compared to equity options (like SPY options), which are American-style and can be exercised at any time.

5. Cash Settlement

SPXW options settle in cash — no shares change hands. When a SPXW call expires in the money, the holder receives the difference between the settlement value and the strike price, multiplied by $100, in cash. This eliminates the risk of unwanted stock positions and simplifies portfolio management.

6. Favorable Tax Treatment

As Section 1256 contracts, SPXW options qualify for the 60/40 tax rule regardless of how long you hold them. This is a significant advantage over equity options and ETF options, which are taxed entirely as short-term capital gains if held for less than a year. We cover the tax implications in detail below.

How SPXW Settlement Works

Understanding settlement mechanics is critical for anyone trading SPXW options, especially if you hold positions through expiration.

PM Settlement Process

SPXW options settle based on the closing value of the S&P 500 index on expiration day. The settlement value is calculated using the closing prices of all 500 component stocks as of the 4:00 PM ET market close. This value is published by Cboe as the SET (Settlement Exercise Ticker) under the symbol SPXW.

Here is how it works step by step:

1. Last trading time: SPXW options trade until 4:00 PM ET on expiration day (regular market close).
2. Settlement calculation: The S&P 500 closing value is determined from the closing prices of all index components.
3. In-the-money determination: Any SPXW option that is in the money by $0.01 or more is automatically exercised.
4. Cash credit/debit: The settlement amount is credited or debited to your account, typically by the next business day.

Settlement Example

Suppose you sold a SPXW 5800/5790 put credit spread (short the 5800 put, long the 5790 put) for a net credit of 3.00 points ($300). On expiration day, the S&P 500 closes at 5,795.

• Your short 5800 put is in the money by 5 points.
• Your long 5790 put is in the money by 0 points (it is out of the money since 5795 is greater than 5790... wait — 5795 is above 5790, so the 5790 put expires worthless).

Actually, let us recalculate: the index settles at 5,795. The 5800 put is ITM (5800 - 5795 = 5 points). The 5790 put is OTM (5795 is above 5790). Your loss on the spread is 5 points minus the 3 points of credit received = net loss of 2 points ($200).

If the index had settled at 5,801 or higher, both puts expire worthless and you keep the full $300 credit.

Edge Cases to Watch

• Pin risk is minimal: Because SPXW options are European-style and cash-settled, you do not face the same pin risk that equity option sellers experience near strikes at expiration.
• After-hours moves do not matter: Since settlement is based on the 4:00 PM close, any after-hours market activity does not affect your SPXW position.
• Market-on-close (MOC) orders: Large MOC order imbalances can push the closing price. Be aware that the final seconds of trading can see significant price movement due to index rebalancing or large institutional flows.

SPXW Expiration Schedule

SPXW options now expire every trading day — Monday through Friday. Here is how to think about the schedule:

• Monday expirations: Listed the prior week
• Tuesday expirations: Listed the prior week
• Wednesday expirations: Often the most liquid mid-week expiration
• Thursday expirations: Listed the prior week
• Friday expirations: Note that on the third Friday of each month, the standard monthly SPX option (AM-settled) also expires. The SPXW Friday option is a separate, PM-settled contract.

How to Find SPXW Expirations

Most brokers display SPXW expirations in the SPX option chain. Look for the "W" suffix or "weekly" label. In MarketXLS, you can pull the next available expiration directly in Excel:

=ExpirationNext("SPX", 1)

This returns the date of the next SPX/SPXW expiration. Since SPXW now has daily expirations, this will typically return the next trading day (or today, if before market close).

Holiday Schedule

SPXW options do not expire on market holidays. If a holiday falls on a weekday, there is no expiration that day. The trading calendar follows the NYSE/Cboe holiday schedule.

Tax Treatment of SPXW Options

SPXW options are classified as Section 1256 contracts under the U.S. Internal Revenue Code. This provides a significant tax advantage known as the 60/40 rule.

The 60/40 Rule Explained

Regardless of how long you hold an SPXW option — even if you open and close the trade on the same day — your gains and losses are taxed as:

• 60% long-term capital gains (taxed at the lower long-term rate)
• 40% short-term capital gains (taxed at your ordinary income rate)

For a trader in the 37% federal tax bracket, this blended rate works out to approximately:

• Long-term rate: 20%
• Short-term rate: 37%
• Blended rate: (0.60 × 20%) + (0.40 × 37%) = 12% + 14.8% = 26.8%

Compare this to trading SPY options (an ETF), where all short-term gains are taxed at 37%. The Section 1256 benefit saves approximately 10 percentage points on every dollar of profit.

Example Calculation

Suppose you earn $50,000 in net profits trading SPXW options during the year:

• 60% taxed as long-term: $30,000 × 20% = $6,000
• 40% taxed as short-term: $20,000 × 37% = $7,400
• Total tax: $13,400 (effective rate: 26.8%)

If the same $50,000 were earned trading SPY options (all short-term):

• 100% taxed as short-term: $50,000 × 37% = $18,500

Tax savings from SPXW: $5,100 on $50,000 of profits. Over a career of active trading, this advantage compounds significantly.

Mark-to-Market at Year End

Section 1256 contracts are also subject to mark-to-market rules. Any open SPXW positions on December 31 are treated as if they were sold at fair market value. This means you may owe taxes on unrealized gains at year end. Conversely, unrealized losses can be deducted. Consult a tax professional for guidance specific to your situation.

Common SPXW Trading Strategies

SPXW options support a wide range of strategies. Here are four of the most popular approaches:

1. Credit Spreads (Bull Put / Bear Call)

Credit spreads are the bread and butter of SPXW premium sellers. You sell a closer-to-the-money option and buy a further out-of-the-money option for protection.

Example — Bull Put Credit Spread:

• S&P 500 is at 5,800
• Sell SPXW 5770 put (0DTE) for 4.50
• Buy SPXW 5760 put (0DTE) for 3.00
• Net credit: 1.50 ($150)
• Max risk: 10 - 1.50 = 8.50 ($850)
• Max profit: $150 (if S&P 500 closes above 5,770)

This trade profits if the S&P 500 stays above 5,770 by the close. The 30-point buffer gives a roughly 85% probability of profit on a typical trading day.

2. Iron Condors

An iron condor combines a bull put spread and a bear call spread, collecting premium on both sides.

Example — 0DTE Iron Condor:

• S&P 500 is at 5,800
• Sell 5770 put / Buy 5760 put (put spread credit: 1.50)
• Sell 5830 call / Buy 5840 call (call spread credit: 1.50)
• Total credit: 3.00 ($300)
• Max risk: 10 - 3.00 = 7.00 ($700) on either side

This strategy profits if the index stays between 5,770 and 5,830 through the close. Iron condors are popular in low-volatility environments when the market is range-bound.

3. 0DTE Day Trading

Zero days to expiration trading involves buying or selling SPXW options that expire the same day. This has become one of the most popular strategies in the options market.

Example — Directional 0DTE Call Buy:

• S&P 500 is at 5,800 at 10:00 AM
• Buy SPXW 5810 call (0DTE) for 5.00 ($500)
• S&P 500 rallies to 5,825 by 2:00 PM
• The 5810 call is now worth approximately 15.00 ($1,500)
• Profit: $1,000 (200% return)

The leverage is extreme — small index moves produce outsized percentage gains (or total losses). Risk management is critical with 0DTE trades.

4. Event Hedging

SPXW options are ideal for hedging around specific events because you can buy protection that expires immediately after the event, minimizing time value cost.

Example — FOMC Hedge:

• FOMC decision is at 2:00 PM ET on Wednesday
• You hold a large equity portfolio and want downside protection
• Buy SPXW 5750 put (expiring Wednesday) for 3.00 ($300)
• If a hawkish surprise drops the index to 5,700, your put is worth 50.00 ($5,000)
• Cost of protection is minimal compared to buying a monthly put

How to Analyze SPXW Options in Excel with MarketXLS

MarketXLS brings institutional-grade options data directly into Microsoft Excel, making it easy to analyze SPXW options without switching between platforms. Here are the key formulas for SPXW analysis:

Get the Current S&P 500 Price

=Last("^SPX")

This returns the latest S&P 500 index value. For real-time streaming updates, use:

=QM_Stream_Last("^SPX")

or

=Stream_Last("^SPX")

Pull the Full Option Chain

=QM_GetOptionChain("^SPX")

This populates your spreadsheet with the complete SPX/SPXW option chain, including all available expirations, strikes, bid/ask prices, volume, and open interest. You can then filter for specific SPXW expirations.

Get Greeks for Analysis

=QM_GetOptionQuotesAndGreeks("^SPX")

This returns delta, gamma, theta, vega, and implied volatility for each option in the chain. Greeks are essential for understanding how your SPXW position will respond to changes in the underlying price, time, and volatility.

Find the Next Expiration Date

=ExpirationNext("SPX", 1)

Returns the next available expiration date. Use this dynamically in other formulas to always reference the nearest SPXW expiration.

Build an Option Symbol

=OptionSymbol("SPX", "2026-03-21", "C", 5000)

This constructs the standardized option symbol for a specific strike, expiration, and type (C for call, P for put). You can then use this symbol to get a quote:

=QM_Last("@SPX 260321C00500000")

Check Implied Volatility

=opt_ImpliedVolatility("SPX", 5000, "C", ExpirationNext("SPX"))

Implied volatility is the single most important metric for option pricing. This formula returns the IV for a specific strike and expiration, helping you determine whether SPXW options are cheap or expensive relative to historical norms.

Analyze Market Sentiment

=opt_PutCallVolRatio("SPX", ExpirationNext("SPX"))

The put/call volume ratio indicates whether traders are buying more puts (bearish sentiment) or calls (bullish sentiment). A ratio above 1.0 suggests elevated put buying.

=opt_TotalOpenInterestOptions("SPX", , ExpirationNext("SPX"))

Open interest shows where traders have established positions. High open interest at specific strikes can act as support or resistance levels — the so-called "gamma exposure" effect.

Sample SPXW Analysis Workflow

Here is a practical workflow for analyzing SPXW options in MarketXLS:

1. Cell A1: =Last("^SPX") — get the current index level
2. Cell A2: =ExpirationNext("SPX", 1) — get the next expiration
3. Cell A3: =opt_ImpliedVolatility("SPX", A1, "C", A2) — get ATM implied volatility
4. Cell A4: =opt_PutCallVolRatio("SPX", A2) — check sentiment
5. Use =QM_GetOptionChain("^SPX") in a separate sheet to browse all strikes and expirations
6. Identify a credit spread with favorable risk/reward based on the data

This workflow takes less than a minute and gives you a comprehensive view of the SPXW market — all without leaving Excel.

Risk Management for SPXW Trading

SPXW options offer tremendous opportunities, but the short-dated nature of these contracts amplifies certain risks. Here are essential risk management principles:

Position Sizing

Never risk more than 1-3% of your trading account on a single SPXW trade. Because 0DTE options can go from profitable to a total loss in minutes, conservative position sizing is non-negotiable.

Use Defined-Risk Strategies

Prefer spreads (credit spreads, iron condors, debit spreads) over naked options. A naked short SPXW put can lose tens of thousands of dollars in a flash crash. A put spread limits your loss to the width of the strikes minus the credit received.

Set Time-Based Stop Losses

With 0DTE options, traditional price-based stop losses may not work well due to rapid price swings. Many experienced traders use time-based rules — for example, closing all positions by 2:00 PM ET regardless of profit or loss to avoid the unpredictable final hour of trading.

Beware of Gamma Risk

Near-expiration options have extremely high gamma, meaning delta changes rapidly with small moves in the underlying. A position that is safely out of the money can become deeply in the money within minutes during a sharp market move. Monitor your positions actively if you hold SPXW options in the final hours before expiration.

Avoid Overtrading

With daily expirations available, it is tempting to trade every single day. Discipline is essential. Not every day presents a favorable setup. Trading out of boredom or FOMO is a reliable way to erode your account.

Account for Liquidity

While SPXW options are among the most liquid options in the world, bid-ask spreads can widen during volatile periods or for far out-of-the-money strikes. Always use limit orders and check the spread before entering a trade.

Frequently Asked Questions

What is SPXW in options trading?

SPXW is the ticker symbol for weekly and daily expiration options on the S&P 500 index, listed by the Cboe Options Exchange. The "W" stands for "weekly" and distinguishes these contracts from the standard monthly SPX options. SPXW options are European-style, cash-settled, and use PM settlement (based on the closing price).

What is the difference between SPX and SPXW?

The main differences are expiration frequency and settlement timing. SPX options expire monthly (third Friday) with AM settlement based on the Special Opening Quotation. SPXW options expire daily (every trading day) with PM settlement based on the closing price. Both are on the same underlying index and have the same contract multiplier.

Do SPXW options qualify for Section 1256 tax treatment?

Yes. SPXW options are Section 1256 contracts, which means gains and losses are taxed using the 60/40 rule — 60% long-term and 40% short-term capital gains rates — regardless of holding period. This provides a significant tax advantage over equity or ETF options.

What does 0DTE mean for SPXW?

0DTE stands for "zero days to expiration." It refers to trading SPXW options on the same day they expire. Because SPXW has daily expirations, 0DTE trading is available every trading day. These trades involve high leverage and rapid time decay, making them both potentially profitable and risky.

How are SPXW options settled?

SPXW options are settled in cash using PM settlement. The settlement value is the closing price of the S&P 500 index at 4:00 PM ET on expiration day. If your option is in the money at settlement, the difference between the strike price and settlement value (times $100) is credited to your account.

Can SPXW options be exercised early?

No. SPXW options are European-style, which means they can only be exercised at expiration — not before. This eliminates early assignment risk, which is a concern with American-style options like those on SPY.

Start Analyzing SPXW Options With MarketXLS

SPXW options offer unmatched flexibility for S&P 500 trading — from 0DTE day trades to event hedging to systematic premium selling. But making informed decisions requires the right data at your fingertips.

MarketXLS puts real-time option chains, Greeks, implied volatility, and sentiment indicators directly in your Excel spreadsheet. No coding required. No switching between platforms. Just the data you need, where you need it.

Ready to level up your SPXW options analysis? Visit MarketXLS to find the plan that fits your trading needs. Check out our pricing page or explore the full list of options functions available in MarketXLS.