(function(){
var CN = 'menthorq_utm_params';
var LK = 'menthorq_utm_params';
var UK = ['utm_source','utm_medium','utm_campaign','utm_term','utm_content','utm_id'];
var CK = ['gclid','fbclid','msclkid','ttclid','twclid'];
var CD = 30;
var AK = UK.concat(CK);function sC(n,v,d){var e=new Date(Date.now()+d*864e5).toUTCString();var c=n+'='+encodeURIComponent(v)+';expires='+e+';path=/;SameSite=Lax';if(location.protocol==='https:')c+=';Secure';document.cookie=c;}
function gC(n){var m=document.cookie.match(new RegExp('(?:^|; )'+n+'=([^;]*)'));return m?decodeURIComponent(m[1]):'';}
function sv(d){var j=JSON.stringify(d);sC(CN,j,CD);try{localStorage.setItem(LK,j);}catch(e){}}
function hk(o){if(!o)return false;for(var i=0;i<AK.length;i++)if(o[AK[i]])return true;return false;}
function nm(d){if(!d)return null;if(d.first)return d;if(hk(d))return{first:d,last:d};return null;}
function ld(){var r=gC(CN);if(r){try{var n=nm(JSON.parse(r));if(n)return n;}catch(e){}}try{var s=localStorage.getItem(LK);if(s){var n=nm(JSON.parse(s));if(n)return n;}}catch(e){}return null;}
function mg(p,n){var o={};if(p)for(var k in p)o[k]=p[k];for(var k in n)o[k]=n[k];return o;}var ps = new URLSearchParams(window.location.search);
var fd = {}, has = false;
for (var i = 0; i < AK.length; i++) {
var v = ps.get(AK[i]);
if (v) { fd[AK[i]] = v; has = true; }
}// Click-ID synthesis: when only a click-id is present (no utm_source), derive
// utm_source/utm_medium so downstream analytics groups under the right channel.
var SY = {
gclid: ['google', 'cpc'],
fbclid: ['facebook', 'cpc'],
msclkid: ['bing', 'cpc'],
ttclid: ['tiktok', 'cpc'],
twclid: ['twitter', 'cpc']
};
if (has && !fd.utm_source) {
for (var sk in SY) {
if (fd[sk]) { fd.utm_source = SY[sk][0]; fd.utm_medium = SY[sk][1]; break; }
}
}if (has) {
fd.captured_at = new Date().toISOString();
var ex = ld();
// Last-touch: merge new fields ON TOP of previous last (preserva campi pregressi)
var newLast = ex && ex.last ? mg(ex.last, fd) : fd;
// First-touch: se ex.first ha almeno un UTM, e' completo e sticky.
// Se ex.first esiste ma e' click-id-only (orphan), completa con i campi nuovi.
// Se ex.first non esiste, usa fd come first.
var newFirst;
if (ex && ex.first) {
var firstHasUtm = false;
for (var i = 0; i < UK.length; i++) if (ex.first[UK[i]]) { firstHasUtm = true; break; }
newFirst = firstHasUtm ? ex.first : mg(ex.first, fd);
} else {
newFirst = fd;
}
sv({first: newFirst, last: newLast});
return;
}var raw = gC(CN);
if (raw) {
try {
var p = JSON.parse(raw);
if (!p.first && hk(p)) sv({first: p, last: p});
} catch(e) {}
return;
}try {
var s = localStorage.getItem(LK);
if (s) { var n = nm(JSON.parse(s)); if (n) sv(n); }
} catch(e) {}
})();
var breeze_prefetch = {"local_url":"https://menthorq.com","ignore_remote_prefetch":"1","ignore_list":["/account/","/login/","/thank-you/","/wp-json/openid-connect/userinfo","wp-admin","wp-login.php"]};
//# sourceURL=breeze-prefetch-js-extra
All listed options have an expiration date. For standard monthly options in the US, this is typically the third Friday of the expiration month. Weekly options expire every Friday, and some index options (like SPX) can have multiple expirations in the same week.
When the market closes on expiration day, the options market checks where the underlying stock (or index) settles. If your option has value at expiration, it can be exercised. If not, it expires worthless.
Calls vs. Puts at Expiration
Calls
A call option gives the holder the right, but not the obligation, to buy the underlying asset at the strike price.
In the money (ITM) means the stock price is above the strike price.
Out of the money (OTM) means the stock price is at or below the strike price.
If you own a call that expires ITM, you can exercise it to buy shares at the strike price — or your broker may auto-exercise it. If you sold a call that’s ITM, you can be assigned: you must deliver shares at the strike.
Puts
A put option gives the holder the right to sell the underlying asset at the strike price.
ITM means the stock price is below the strike price.
OTM means the stock price is at or above the strike price.
If you own a put that expires ITM, you can exercise it to sell shares at the strike. If you sold a put that’s ITM, you can be assigned and required to buy shares at the strike.
How Automatic Exercise Works
In the US, the Options Clearing Corporation (OCC) uses a rule called “automatic exercise.” Most brokers will automatically exercise your option if it’s at least $0.01 ITM at expiration, unless you tell them not to.
Why This Matters?
If you didn’t plan for this, you could suddenly own or be short stock you didn’t expect. For example, holding a long call that ends up just a few cents ITM may lead to a stock purchase in your account, which ties up margin or cash.
What Is Assignment?
When you sell an option, you take on the obligation. If the buyer exercises, you get assigned. Assignment can happen at any time for American-style options, but is most common right before or at expiration.
Example:
You sell a covered call on XYZ with a $50 strike.
XYZ closes at $51 at expiration.
The call buyer will likely exercise.
You’ll be assigned and required to deliver your shares at $50.
This is why covered calls are called “covered” you already hold the stock.
Physical vs. Cash Settlement
Most equity options are physically settled. That means if a call is exercised, the buyer gets shares; if a put is exercised, the seller buys shares.
Some index options (like SPX) are cash-settled. If you hold a cash-settled index option, no shares change hands, instead, your account receives or pays the intrinsic value in cash.
Example:
If you hold an SPX call that’s 10 points ITM at expiration, you receive the cash equivalent of 10 points times the contract multiplier ($100) = $1,000.
Special Cases: Early Assignment and Dividends
While this article focuses on expiration, remember that with American options, assignment can happen anytime the option is ITM, not just on expiration day.
Calls & Dividends:
Call buyers may exercise early if there’s a dividend to collect. If you’re short calls on a dividend-paying stock, you could be assigned early and lose the dividend.
How to Manage Expiration Risk
Monitor ITM options: Know where your positions stand before the market closes on expiration day.
Be aware of auto-exercise: If you don’t want to exercise, tell your broker before the cutoff time.
Plan for stock delivery: If you have short options that may be assigned, ensure you have enough cash or margin to handle the position.
Close positions if unsure: Many traders prefer to close short options before expiration to avoid the guesswork.
Conclusion
Understanding what happens to options at expiration is vital for risk management. Assignment and exercise can dramatically change your portfolio overnight if you’re not prepared. Knowing whether your options are ITM, the rules for automatic exercise, and the difference between physical and cash settlement can help you avoid surprises.
The payoff diagram only tells half the story — smart traders always check the clock and plan ahead for expiration day.
Join us today
Access daily Market Research and our interactive Dashboard. Make better trading decisions.
