Educational only, not tax or financial advice. Tax treatment (including Section 1256) is complex and situation-specific — consult a qualified professional. Product specs and settlement rules can change; verify current details.

Cash-settled options (like SPX and XSP) pay out in cash at expiration; physically-settled options (like SPY) deliver shares. For 0DTE, this difference affects assignment risk and how expiration works — a genuinely practical distinction.

What each means at expiration

A physically-settled option (SPY) that finishes in-the-money is exercised into stock — a call becomes a 100-share purchase per contract. Hold an ITM SPY option to the bell and you can end up with an unwanted, capital-intensive share position. A cash-settled option (SPX/XSP) instead settles to cash based on the index value — no shares, ever. The ITM value just becomes cash in your account. That removes the share-assignment machinery entirely.

Why it matters for 0DTE

For same-day traders who occasionally hold near expiration, cash settlement is cleaner: no risk of accidental share assignment, and cash-settled index options are typically European-style (no early assignment either). With SPY, the practical rule is simply to sell the option before expiration to avoid the shares, which scalpers do anyway. So for most SPY scalpers who exit before the bell, physical settlement rarely bites; it’s mainly a consideration if you tend to hold to expiration. (Note: buying long options means you can’t be assigned mid-trade either way.)

Cash-settled turns into money; physically-settled turns into shares. For a scalper who exits before the bell, it rarely matters — for one who holds to expiration, it’s the whole ballgame.

The takeaway

Cash settlement (SPX/XSP) avoids share assignment and often pairs with favorable 1256 tax treatment; physical settlement (SPY) means selling before expiration to avoid shares. Both are fine for scalping if you manage exits — NoVo’s approach of exiting before the close sidesteps the issue on SPY. Understanding the difference just helps you choose the product and handle expiration deliberately.