PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund (STPZ) Max Pain Analysis

Max pain is the strike price where aggregate option buyer payout is minimized at expiration. It represents the price at which option writers retain the most premium.

PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund (STPZ) operates in the Financial Services sector, specifically the Asset Management - Bonds industry, with a market capitalization near $507.7M, listed on AMEX, carrying a beta of 0.27 to the broader market. The Fund is structured to deliver an overall return that, before accounting for its fees and operational costs, substantially matches the performance of the BofA Merrill Lynch 1-5 Year US Inflation-Linked Treasury Index. public since 2009-08-21.

Snapshot as of Jun 30, 2026.

Spot Price

$53.36

Max Pain Strike

$51.00

Total OI

18

As of Jun 30, 2026, PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund (STPZ) max pain sits at $51.00, which is below the current spot price of $53.36 (4.4% away). Spot sits 4.4% below max pain - close enough that a routine end-of-cycle gamma roll could pull price toward the level, but far enough that catalyst-driven flow would dominate. STPZ sits in the lower-price band (spot $53.36), where $0.50-$2.50 strike spacing makes pin-to-strike effects easy to spot but per-contract dollar gamma is smaller. Total open interest across the listed chain is comparatively thin (18 contracts), so single-strike pinning is less reliable than it is for high-OI names. STPZ is currently in negative dealer gamma (-$707), a regime that amplifies directional moves rather than damping them, weakening the pin-toward-max-pain bias. Max pain identifies the strike at which the aggregate dollar value of all outstanding options contracts would expire with the least total intrinsic value, a gravitational reference rather than a price target.

STPZ Strategy Implications at the Current Max Pain Level

With spot 4.4% from the $51.00 max-pain level and PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund in a negative-gamma regime, where dealer hedging amplifies directional moves and weakens any pin, strategy selection turns on cycle position and dealer positioning. Iron condors and credit spreads centered near the max-pain strike capture the typical end-of-cycle convergence when the regime supports pinning; ratio backspreads or directional debit structures fit names where catalyst flow is likely to overwhelm the hedging-driven pull. The gamma-exposure page shows the per-strike dealer book that determines whether hedging will reinforce or fight the pin.

How to read the STPZ max-pain chart

The open-interest histogram above shows where PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund call and put writers have stacked the most inventory. Strikes with elevated call OI act as overhead resistance when dealers are long-gamma (they sell rallies into the wall); strikes with elevated put OI act as support (dealers buy dips toward the wall). The max-pain strike is the single price at which the total cash payout to option holders is minimized - the lowest-pain price for the writers as a group. The max-pain strike sits at $51.00, 4.4% below spot. Net dealer gamma is negative at -$707, so as spot moves dealers buy rallies and sell dips, mechanically amplifying realized volatility.

STPZ max-pain in context

Max pain is an end-of-cycle convergence signal, not an intraday compass. Cross-reference the level with the gamma-flip strike on the GEX page, the front-month ATM IV reading (currently 74.1%), and any catalyst risk on the calendar. Total listed OI on STPZ sits at 18 contracts; pin strength generally scales with this number, since heavier OI means more delta to hedge as spot drifts toward the strike. A pin can fail - earnings, FDA decisions, central-bank surprises, and other vol catalysts can rip spot past max pain regardless of where dealers want it. Use max pain to size risk-defined structures, not as a directional thesis.

Reading STPZ max-pain alongside dealer positioning

The clean version of the max-pain mechanism requires positive dealer gamma to enforce convergence; in a negative-gamma regime the same OI distribution can repel rather than attract spot. STPZ is currently in a negative-gamma regime, so dealer hedging amplifies rather than dampens directional moves - max-pain convergence is less likely without a separate stabilizing catalyst. Combine the pin level with the gamma-flip level and the implied move to model out where spot is likely to anchor through expiration.

Learn how max pain is reported and how to read the data →

Frequently asked STPZ max pain analysis questions

What is the current STPZ max pain strike?

As of Jun 30, 2026, PIMCO 1-5 Year U.S. TIPS Index Exchange-Traded Fund (STPZ) max pain sits at $51.00, which is 4.4% below the current spot price of $53.36. Max pain identifies the strike at which aggregate option-buyer payouts at expiration are minimized; it is a gravitational reference, not a price target. A 4.4% gap is close enough that a routine end-of-cycle gamma roll could pull spot toward the level, but far enough that catalyst-driven flow typically dominates.

Does STPZ pin to its max pain strike at expiration?

STPZ is currently in negative dealer gamma, a regime that amplifies directional moves rather than damping them. The pin-toward-max-pain bias weakens here because dealer hedging adds momentum rather than mean reversion. Total open interest across STPZ (18 contracts) is one input to how plausible a clean pin is - heavier total OI concentrated at fewer strikes raises the probability; thin OI spread across many strikes lowers it. Pinning is strongest in heavily-traded names with large open-interest concentrations at high-OI strikes during the final week of an OPEX cycle. Whether STPZ actually pins on a given expiration depends on the OI distribution, the dealer-gamma sign, and the absence of catalyst-driven moves that overwhelm hedging-driven flow.

How is STPZ max pain calculated?

Max pain is computed by summing the dollar value of all in-the-money options at each candidate settlement strike across listed expirations, then selecting the strike that minimizes total intrinsic-value payout to option buyers. The calculation uses the full open-interest distribution and weighs both calls and puts. STPZ put/call OI ratio is 0.29 - call-heavy, which biases the max-pain calculation toward strikes above current spot when the call OI concentrates there.