GPIX vs ISPY vs SPYI vs TSPY vs XDTE: Which Is the Better Pick in 2026?

Overview

These five ETFs all track or seek exposure to the S&P 500, but they differ sharply in how they generate returns. GPIX, ISPY, SPYI, TSPY, and XDTE all combine a core long position in large-cap equities with short call options to harvest premium income. The critical distinction lies in the frequency and strike selection of those calls: ISPY, TSPY, and XDTE deploy zero-days-to-expiration (0DTE) strategies, rolling calls daily or weekly to capture rapid time decay, while GPIX and SPYI use longer-dated call ladders. This choice cascades into yield, downside capture, expense ratios, and NAV stability.

How they differ

XDTE stands apart immediately: it distributes a 24.76% yield weekly using 0DTE calls, more than double TSPY's 14.00% monthly rate and four times SPYI's 12.01%. This extreme yield comes at a cost—a 0.95% expense ratio and only $317M in AUM, suggesting a newer, smaller position in the options-income landscape. ISPY and TSPY also run 0DTE strategies but with lower yields (6.32% and 14.00%, respectively); ISPY's lower rate reflects its daily rolling approach and higher beta (0.9342), while TSPY's $286M AUM and recent inception (08/14/2024) suggest it's still attracting capital. GPIX, the oldest fund (10/24/2023) and largest by AUM at $4.40B, offers the lowest yield at 8.58% and a 0.29% expense ratio—reflecting a broader, less-frequent call calendar that captures less premium but shelters more principal. SPYI ($6.20B, the largest overall) sits in the middle on yield (12.01%) but carries a low beta (0.69), suggesting its derivative overlay dampens downside more than the others.

Who each is best for

GPIX: Fits investors seeking monthly income from the S&P 500 who are willing to accept capped upside in exchange for a lower expense ratio and smoother NAV, with a bias toward capital preservation over maximum yield.

ISPY: Designed for investors who want consistent daily call rolling to extract high-frequency premium decay, comfortable with a tighter expense ratio (0.55%) and near-unity beta exposure to the broad index.

SPYI: Appeals to investors prioritizing tax efficiency and downside cushioning through a lower beta (0.69), viewing the 12.01% yield as ancillary to a more balanced risk-adjusted profile.

TSPY: Matches investors chasing the 14.00% yield from 0DTE calls and accepting the trade-off of a newer fund with modest AUM and a 0.935 beta that tracks the index closely despite options overlay.

XDTE: Fits yield-focused investors willing to accept the highest expense ratio (0.95%), smallest AUM ($317M), and weekly distribution timing in pursuit of the 24.76% distribution rate and 0DTE mechanics.

Key risks to know

• NAV erosion at extreme yields: XDTE's 24.76% distribution rate and TSPY's 14.00% both signal that distributions likely include substantial return-of-capital; NAV can erode over time if underlying S&P 500 returns do not exceed the distribution rate plus expenses. SPYI's 12.01% sits in a similar zone of risk.

• 0DTE call assignment and equity replacement cost: ISPY, TSPY, and XDTE roll calls daily or weekly; if the index gaps above a call strike and assignment occurs, the fund must repurchase shares at a higher price, locking in losses that don't show as NAV erosion on paper but reduce future income capacity.

• Capped upside and beta drag: GPIX's 0.8543 beta and the subdued upside capture in all four options-writing strategies mean these funds will lag the S&P 500 in a sustained bull market; investors chasing price appreciation should expect to trade away multi-year capital gains for current income.

• Liquidity and AUM concentration: XDTE and TSPY are both young funds with under $320M AUM; trading spreads may widen during market stress, and small size increases the risk of fund closure or restructuring.

• Call-strike selection and downside participation: A sharp S&P 500 decline will still hurt these funds, but SPYI's lower beta (0.69) offers more downside cushioning than ISPY (0.9342) or TSPY (0.935). Conversely, GPIX's 0.8543 beta suggests a gentler decline capture but also weaker recovery upside.

Bottom line

If you want the broadest, most mature S&P 500 income vehicle with the lowest expenses and smallest yield-related NAV risk, GPIX stands out; if you prioritize maximum yield and accept weekly distributions and a larger expense bite, XDTE's 24.76% rate reflects that trade-off. For investors drawn to daily call rolling and a middle ground on cost, ISPY offers a cleaner execution than TSPY. SPYI appeals to those who value lower beta and tax efficiency over raw yield. All five funds will underperform a buy-and-hold S&P 500 position in sustained bull markets and should be evaluated as income vehicles, not growth holdings. Past performance does not predict future results.