Starbucks Monthly Credit Card Spend in August
Short Answer
Both the model and the market expect Starbucks' monthly credit card spend in August 2026 to be Above 100, with no compelling evidence of mispricing.
1. Executive Verdict
- Spend above 100 appears likely, driven by strong Q3 2026 results and raised guidance.
- Above 106 spend is also considered, supported by historical August seasonality and PSL.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Above 106 | 1.0% | 0.5% | Strong Q3 FY 2026 results and August Pumpkin Spice Latte sales suggest higher credit card spend. |
| Above 100 | 0.0% | 1.1% | Research does not highlight strong supporting evidence. |
| Above 100.5 | 0.0% | 1.0% | Research does not highlight strong supporting evidence. |
| Above 101 | 0.0% | 1.0% | Research does not highlight strong supporting evidence. |
| Above 101.5 | 0.0% | 0.9% | Research does not highlight strong supporting evidence. |
Current Context
Starbucks reported strong Q3 FY26 results, raising full-year guidance. The company's third fiscal quarter, ending June 28, 2026, saw global comparable store sales increase 7.9% and non-GAAP EPS grow 70% year-over-year to $0.85 [^][^][^][^][^]. Following this performance, Starbucks adjusted its full-year 2026 outlook, now projecting U.S. comparable store sales growth of slightly greater than 6% and non-GAAP EPS between $2.55 and $2.65 [^][^][^][^][^]. Management noted progress on the 'Back to Starbucks' plan, including over 1,000 North American cafe 'uplifts', and anticipates coffee cost pressures will be largely immaterial to year-over-year margin comparisons in the fourth quarter [^][^].
South Korea experienced a significant decline in June card payments. Credit and debit card payments in South Korea dropped to 100.39 billion won in June 2026 from 121.19 billion won in May [^][^]. This decrease followed consumer backlash stemming from a controversial promotion [^][^]. The provided information does not include specific company-wide monthly credit card spending metrics for August 2026.
No aggregate August credit card spending data is directly available. Historical financial examples detailing individual Starbucks purchases or public interactions related to loyalty programs and marketing promotions do not represent aggregate monthly financial or credit card spending metrics for the company [^][^][^][^][^][^]. General news mentions of Starbucks earnings or outlook also do not provide direct monthly spend figures for August [^][^][^][^][^].
2. Market Behavior & Price Dynamics
Historical Price (Probability)
Outcome probability
Date
This contract saw its entire price history form on August 4, 2026. The price gapped from an initial 0.0% to 56.0% on its opening day, establishing both the floor and the current market price in a single session. This sharp upward repricing appears to be a direct reaction to Starbucks' strong Q3 FY26 earnings report, in which the company raised its full-year guidance. The positive results, including a 7.9% increase in global comparable store sales, likely led initial market participants to price in a higher probability of strong consumer spending continuing into August.
Despite the significant price spike, market conviction is non-existent. Total traded volume is zero contracts. The price of 56.0% reflects opening bid-ask spreads, not a consensus formed through active trading. Without any volume, there are no meaningful support or resistance levels to identify. The current price simply represents an initial sentiment, which is bullish but untested. The market's pricing suggests positive expectations following the recent earnings, but the lack of liquidity indicates the position is not widely held and the price could be subject to extreme volatility if and when trading begins.
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
📈 August 04, 2026: 56.0pp spike
Price increased from 0.0% to 56.0%
Outcome: Above 100
What happened: The provided research does not contain evidence of a "56.0 percentage point spike" in Starbucks' global monthly credit card spending on August 4, 2026 [^][^]. While Starbucks announced strong global Q3 fiscal 2026 results, raising full-year guidance and potentially supporting an "Above 100" outcome [^][^][^], this is not linked to such a specific, dramatic spike on that particular date. Contrarily, social media discussions regarding health concerns over a new blending powder in August 2026 [^] and ongoing negative publicity impacting credit card spending in Starbucks Korea since May 2026 [^][^][^] would likely depress, not spike, spending. Given the lack of evidence for the reported market movement itself, social media cannot be identified as a primary driver; rather, the movement's existence is unsubstantiated by the provided information.
4. Market Data
Contract Snapshot
This market concerns Starbucks Monthly Credit Card Spend in August. A YES resolution occurs if the specified August credit card spend is above the contract's threshold (e.g., above 103.5), while a NO resolution occurs if it is at or below the threshold. Trading for this market ends on September 7, 12:00 am EDT, with the maximum payout date set for September 6, 2026. No special settlement conditions regarding data sources or methodologies are detailed in the provided content.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Above 106 | $0.18 | $0.91 | 1% |
| Above 100 | $0.96 | $0.44 | 0% |
| Above 100.5 | $0.97 | $0.46 | 0% |
| Above 101 | $0.97 | $0.47 | 0% |
| Above 101.5 | $0.97 | $0.47 | 0% |
| Above 102 | $0.96 | $0.49 | 0% |
| Above 102.5 | $0.88 | $0.55 | 0% |
| Above 103 | $0.80 | $0.60 | 0% |
| Above 103.5 | $0.71 | $0.69 | 0% |
| Above 104 | $0.62 | $0.78 | 0% |
| Above 104.5 | $0.54 | $0.84 | 0% |
| Above 105 | $0.45 | $0.88 | 0% |
| Above 105.5 | $0.43 | $0.89 | 0% |
Market Discussion
Starbucks announced strong Q3 fiscal 2026 results, reporting a 7.9% increase in global comparable store sales and raising its full-year outlook, with U.S. comparable sales projected slightly above 6% [^][^][^]. Prediction markets leading up to the Q3 earnings (late July/early August) showed high confidence in positive comparable transactions and sales growth for the company [^][^][^]. However, Starbucks lost its market lead in monthly credit card spending in South Korea for three consecutive months as of August 2026, following a controversial promotion [^].
5. What specific forward-looking statements from Starbucks' Q3 2026 earnings call support its raised guidance for U.S. sales growth?
| 2026 US Comparable Sales Guidance | Raised, supported by company confidence [^] |
|---|---|
| Confidence Driver | Continued momentum in sales leverage [^] |
| Guidance Underpinnings | Anticipated disciplined cost initiatives and normalizing margin comparisons [^] |
Starbucks raised U.S. sales guidance, citing future confidence. The company has updated its full-year 2026 guidance for U.S. comparable store sales growth, indicating an increase. This revised outlook reflects the company's forward-looking confidence [^].
Momentum in sales and cost efforts drive outlook. Supporting this raised guidance are several anticipated factors, including an expectation of continued momentum in sales leverage [^]. Furthermore, Starbucks projects disciplined cost initiatives designed to counteract investments made in 'Back to Starbucks' priorities [^]. The company also anticipates normalizing margin comparisons, which will occur as it marks the anniversary of its 'Green Apron' program's introduction [^].
6. How might back-to-school consumer spending trends in August 2026 influence Starbucks' performance compared to its Q3 2026 results?
| Global Comparable Store Sales Increase | 7.9% (Q3 2026) [^][^][^][^] |
|---|---|
| North America Same-Store Sales Growth | 8.1% (Q3 2026) [^][^][^][^] |
| Parents planning to dine out less | 48% (once school resumes) [^] |
Starbucks demonstrated strong financial performance in Q3 2026. The company reported a 7.9% increase in global comparable store sales and an 8.1% growth in North America same-store sales. This positive momentum was largely driven by a combination of higher transaction volume and an increase in the average ticket size across its various locations [^][^][^][^].
However, Starbucks may encounter challenges in Q4 due to changing consumer spending. The August 2026 back-to-school period indicates consumers are adopting disciplined caution and actively seeking hyper-value. A significant 48% of parents plan to reduce their frequency of dining out once school resumes, opting instead for home-cooked meals [^][^][^][^][^]. These trends suggest a potential slowdown for Starbucks, contrasting with its strong previous quarter.
Starbucks faces distinct challenges within the South Korean market, impacting its overall performance. The region is experiencing intense local competition and a decline in monthly card spend. This decline is specifically linked to brand trust issues that arose from a controversial May 2026 promotion, highlighting a notable geographic disparity in the company's financial results [^].
7. How did consumer foot traffic and sentiment for Starbucks compare to Dunkin' during the July-August 2026 period?
| Starbucks Mental Market Share | 15.3% [^][^] |
|---|---|
| Dunkin' Mental Market Share | 11.0% [^][^] |
| Starbucks July 2026 Foot Traffic | 89% probability of exceeding 530 million [^] |
Starbucks maintains its leadership in mental market share, with Dunkin' efficiently converting demand. As of July 2026, Starbucks held a significant lead in mental market share at 15.3%, considerably higher than Dunkin's 11.0% [^][^]. Despite a narrower mental base, Dunkin' demonstrated effectiveness in converting demand by over-indexing on convenience and specific morning coffee occasions [^][^].
Starbucks projected strong July foot traffic after reporting robust Q3 2026 sales. The company was expected to experience strong foot traffic in July 2026, with prediction markets indicating an 89% probability that its U.S. monthly foot traffic would exceed 530 million [^]. This forecast followed a strong Q3 2026 performance (ending June 28), where Starbucks reported a 7.9% increase in U.S. comparable store sales, driven by a 4.2% rise in transactions and a 3.6% increase in the average ticket [^][^][^][^]. Starbucks subsequently updated its full-year 2026 guidance, anticipating U.S. comparable store sales growth slightly greater than 6% [^].
A definitive foot traffic comparison between Starbucks and Dunkin' for July-August 2026 is limited. A comprehensive comparison of consumer foot traffic between the two brands for the entire July-August 2026 period cannot be fully established due to data limitations. The available research does not provide specific foot traffic data for Dunkin' during this period, nor for Starbucks in August 2026.
8. What is the historical month-over-month trend and seasonality for the specific credit card spend index used by this market?
| August Sales Uptick | 6-12% weekly increase due to Pumpkin Spice Latte launch [^][^][^] |
|---|---|
| Thailand Campaign Period | July, August, and September 2026 [^] |
| Credit Card Spend Influencers | Average ticket growth, transaction volume, wallet share [^][^] |
Starbucks' sales exhibit clear seasonality, with a notable August surge. Historically, sales are typically lower in January, followed by gradual growth throughout the year, peaking in December due to holiday purchases [^][^]. August consistently marks a significant month, triggering a noticeable month-over-month sales uptick. This increase often boosts weekly sales by 6-12% compared to the prior week, largely attributable to the annual launch of the Pumpkin Spice Latte menu [^][^][^].
Economic factors and strategic campaigns influence year-over-year spending trends. Broader economic factors, including average ticket growth, transaction volume, and wallet share, significantly influence year-over-year credit card spending trends. These have recently experienced pressure from sluggish store card reloads and shifting consumer discretionary spending [^][^]. For 2026, a collaborative campaign between Starbucks Thailand and JCB aims to stimulate spending in July, August, and September, which may lead to localized August performance outliers compared to traditional historical patterns [^].
Details on the specific credit card spend index are unavailable. While the market refers to a specific credit card spend index, the provided research describes the general use of credit card data and spending metrics. It does not specify details regarding the named index's historical month-over-month trend or its implementation [^][^][^][^][^][^].
9. Do high-frequency third-party spending datasets corroborate Starbucks' optimistic internal forecasts for Q4 2026?
| Starbucks Q4 2026 US sales growth forecast | 6.5% or better [^] |
|---|---|
| Starbucks Q4 2026 operating margin forecast | Above 11% [^] |
| South Korea card payments performance (May–July 2026) | Starbucks underperformed rival Twosome Place [^][^] |
Third-party spending data does not corroborate Starbucks' U.S. Q4 2026 forecasts. Starbucks has projected an optimistic outlook for Q4 2026, anticipating U.S. comparable store sales growth of 6.5% or higher and a consolidated operating margin exceeding 11% [^]. However, high-frequency third-party spending datasets do not directly support these internal forecasts, particularly for the U.S. market. While prediction market participants are actively trading on Starbucks' U.S. foot traffic metrics, focusing on July 2026 data for resolution, these metrics track foot traffic rather than direct spending and do not corroborate the company's Q4 2026 forecasts [^]. The research does not contain high-frequency third-party spending data for the U.S. that would corroborate Starbucks' Q4 2026 forecasts.
International payment data shows challenges, but Starbucks' global sales remain strong. Available third-party payment data from South Korea indicates significant challenges for Starbucks, with the company being outperformed by rival chain Twosome Place in card payments from May to July 2026, following a brand controversy [^][^]. It is important to note that this data pertains to an international market and an earlier period than the Q4 2026 U.S. guidance [^]. Despite the absence of direct corroboration for U.S. spending from third-party data, Starbucks' management reported strong global comparable store sales growth and successful margin inflection through Q3 2026, which underpins their updated fiscal year guidance [^][^].
10. What Could Change the Odds
Key Catalysts
Starbucks reported strong Q3 FY2026 results on July 29, 2026, and raised its full-year 2026 guidance [^] [^] [^] . The company expects Q4 U.S. comparable store sales growth of 6.5% or greater, FY2026 U.S. comp growth slightly above 6%, and global comp growth nearing 6% [^][^][^]. Management indicated that margin expansion drivers from Q3, including sales leverage and cost savings, are expected to persist into Q4, partially offsetting investments in the "Back to Starbucks" initiatives, such as the anniversary of Green Apron Service launched in August 2025 [^][^].
Analyst sentiment has been mixed following the Q3 earnings beat [^] [^] [^] . While many maintain a 'Moderate Buy' consensus, several firms, including Wells Fargo and Morgan Stanley, downgraded the stock from 'overweight' to 'underweight' on August 3, 2026 [^][^][^]. These downgrades often cited valuation concerns after a significant year-to-date rally [^][^][^].
Historically, Starbucks card reload and transaction trends serve as key indicators for U.S. performance [^][^]. However, specific August 2026 credit card spend data is not yet publicly available [^][^]. As of August 4, 2026, no market data or analyst predictions exist regarding Starbucks monthly credit card spend for August 2026 [^][^]. Investors monitor wallet share and digital engagement as proxies for consumer health [^][^].
Key Dates & Catalysts
- Expiration: September 14, 2026
- Closes: September 07, 2026
11. Decision-Flipping Events
- Trigger: Starbucks reported strong Q3 FY2026 results on July 29, 2026, and raised its full-year 2026 guidance [^] [^] [^] .
- Trigger: The company expects Q4 U.S.
- Trigger: Comparable store sales growth of 6.5% or greater, FY2026 U.S.
- Trigger: Comp growth slightly above 6%, and global comp growth nearing 6% [^] [^] [^] .
13. Historical Resolutions
No historical resolution data available for this series.
