Microsoft’s October 12 announcement that Maia 200 serves production workloads raises a question for shareholders: can expanding its own AI chips improve profitability?[3]

For Microsoft common stock (Nasdaq: MSFT), October 11–20 is already underway. All nine selected midterm-year windows from 1990–2022 finished higher, although broader histories were weaker. How useful is that favorable seasonal timing now?[5][4]

Maia’s financial stakes

Maia 200 supports Copilot and the MAI team; GitHub Copilot and Foundry are planned for year-end. Microsoft plans multi-gigawatt Maia deployments and Maia 300 production deployments in 2027. Its expectation of 40% more tokens per megawatt than leading GPU-based systems is a technical claim, not a reported financial return.[3]

Results published July 29 for the quarter ended June 30 provide the baseline: Cloud revenue reached $59.3 billion, up 27% year over year. Capital expenditures were $41 billion, including higher component pricing. Company gross margin fell year over year to 67%; management cited Azure sales mix, AI infrastructure investment and growing usage, partly offset by efficiency gains.[2]

More Personal Computing revenue fell 4%, qualifying the cloud-led growth picture.[1]

The evidence

Microsoft’s reported fourth-quarter revenue by segment

Quarter ended June 30, 2026

Microsoft’s reported fourth-quarter revenue by segment. Units: USD billions. Productivity and Business Processes: 37.8; Intelligent Cloud: 39.3; More Personal Computing: 12.9
Company-reported revenue; values are rounded as stated in the release. This chart excludes forecasts and TradeWave seasonal results.Source: Microsoft Cloud and AI Strength Fuels Fourth Quarter Results.
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Microsoft’s reported fourth-quarter revenue by segment · USD billions
MeasureValuePeriodStatus
Productivity and Business Processes37.8FY2026 Q4, quarter ended 2026-06-30reported
Intelligent Cloud39.3FY2026 Q4, quarter ended 2026-06-30reported
More Personal Computing12.9FY2026 Q4, quarter ended 2026-06-30reported

CSV data · Full-size vector chart

A favorable, already-started window

TradeWave’s selected seasonal record shows a 3.51% median full-window gain. The October 11 start has passed, and the saved evidence supplies no entry price or executable trade. That historical result is not the return remaining today.[5]

MSFT2026-10-11 to 2026-10-20 · 10 calendar days9 selected midterm-election years (1990–2022)

The year-by-year seasonal record

MSFT: the selected seasonal record. Each bar shows the price change from the start to the end of the same seasonal period. Green means higher; red means lower. The dashed line marks TradeWave’s median full-window result of 3.51%. 9 selected midterm-election years (1990–2022)
Each bar shows the price change from the start to the end of the same seasonal period. Green means higher; red means lower. The dashed line marks TradeWave’s median full-window result of 3.51%.
View exact TradeWave observations and download
Window starting yearEnding price changeHighest from entryLowest from entry
1990+10.35%+11.64%-7.76%
1994+6.83%+7.27%-1.46%
1998+0.50%+6.77%-4.01%
2002+7.45%+8.86%-2.11%
2006+3.23%+4.21%+0.00%
2010+2.93%+5.53%-0.65%
2014+0.98%+1.67%-3.55%
2018+3.51%+5.57%+0.00%
2022+4.76%+8.22%-2.79%
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What a winning finish can conceal

The yearly range chart covers the same seasonal period each year, not whole calendar years. The latest selected example, October 11–20, 2022, illustrates the distinction: shares finished up 4.76% but traded 2.79% below the starting price. Those highs and lows establish neither their order nor a peak-to-trough drawdown.[5]

What happened inside each seasonal window

MSFT: yearly seasonal range. Each year shows the same seasonal period. Bars show the price change at its end. Thin lines show the highest and lowest changes from the starting price during that period. The lines do not tell us which move came first or measure a fall from a peak. They are not suggested stop-loss levels. The dashed line marks TradeWave’s median full-window result of 3.51%. 9 selected midterm-election years (1990–2022)
Each year shows the same seasonal period. Bars show the price change at its end. Thin lines show the highest and lowest changes from the starting price during that period. The lines do not tell us which move came first or measure a fall from a peak. They are not suggested stop-loss levels. The dashed line marks TradeWave’s median full-window result of 3.51%.
View exact TradeWave observations and download
Window starting yearEnding price changeHighest from entryLowest from entry
1990+10.35%+11.64%-7.76%
1994+6.83%+7.27%-1.46%
1998+0.50%+6.77%-4.01%
2002+7.45%+8.86%-2.11%
2006+3.23%+4.21%+0.00%
2010+2.93%+5.53%-0.65%
2014+0.98%+1.67%-3.55%
2018+3.51%+5.57%+0.00%
2022+4.76%+8.22%-2.79%
Download TradeWave observations

Broader histories temper confidence

Checking across all years tests how widely the strength holds: the 2016–2025 median was 0.56%, versus 3.51% for selected midterms; 2006–2025 also included losses. Each comparison reuses selected midterm observations, and the shorter history sits inside the longer. Different periods and only nine selected observations limit confidence in an election explanation.[5]

See the history behind this comparison

TradeWave checks the same seasonal dates across different sets of years. This helps show whether the pattern holds up when you look at another stretch of history.

HistoryObserved start yearsDirectionSuccess rateMedian result
Article study: 9 selected midterm-election years (1990–2022)1990, 1994, 1998, 2002, 2006, 2010, 2014, 2018, 2022long100.0%3.51%
10 consecutive historical windows (2016–2025)2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025long70.0%0.56%
20 consecutive historical windows (2006–2025)2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025long75.0%1.31%

Some years appear in more than one group, so agreement is not an independent test. A requested lookback can extend beyond available history; the observed years are listed above. Election-cycle groups use matching phases, not consecutive years. Results follow the direction shown: a positive short result means prices fell. Small samples and different market periods make the comparison less conclusive.

From historical timing to earnings

After this window, fiscal first-quarter results arrive October 28 after market close, with a 2:30 p.m. Pacific webcast. The question remains whether efficiency gains can ease margin pressure.[4][2]

Recorded prices below end October 13, 2026. The selected nine midterm years supply an average seasonal path scaled onto the price chart for the next 60 weekdays, October 14, 2026–January 5, 2027. This separate horizon illustrates historical shape, not future prices or a target. Inspect the same window across histories and its range of outcomes in TradeWave.[5]

Price history and the seasonal outlook

MSFT recorded prices and TradeWave seasonal illustration. Blue shows recorded prices through 2026-10-13. The amber line overlays a section of TradeWave's seasonal trend, scaled to the last recorded price, using 9 selected midterm-election years (1990–2022). Its displayed dates are 2026-10-14 to 2027-01-05; covering the next 60 weekdays. That is a different horizon from the full seasonal window above. It illustrates the historical seasonal shape, not a price target or forecast.
Blue shows recorded prices through 2026-10-13. The amber line overlays a section of TradeWave's seasonal trend, scaled to the last recorded price, using 9 selected midterm-election years (1990–2022). Its displayed dates are 2026-10-14 to 2027-01-05; covering the next 60 weekdays. That is a different horizon from the full seasonal window above. It illustrates the historical seasonal shape, not a price target or forecast.

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About this seasonal analysis

9 selected midterm-election years (1990–2022). The selected dates, years, direction, returns and ranges come from TradeWave. When a window boundary is a weekend or market holiday, TradeWave uses the next available trading session. SMN displays the returned results without recalculating them. A year label identifies the start of the historical window; a window can end in the following calendar year.

Green and red bars show the underlying adjusted-price movement. The range endpoints measure changes from the entry price, not a peak-to-trough loss. Historical results are before trading costs and do not guarantee future performance.

TradeWave data methodology · The 100-Year Pattern

Sources & methodology

  1. Microsoft Cloud and AI Strength Fuels Fourth Quarter Results · 2026-07-29
  2. Microsoft Fiscal Year 2026 Fourth Quarter Earnings Conference Call · 2026-07-29
  3. Microsoft to expand Azure Maia system to multi-gigawatt deployments · 2026-10-12
  4. Microsoft announces quarterly earnings release date · 2026-10-07
  5. TradeWave MSFT seasonal evidence · 2026-10-14