Microsoft's SEC filing (Form 8-K) moved MSFT +2.99%
MSFT moved +2.31% in five minutes and +2.99% by market close — about 26.5× Microsoft's median close-day move.
· SEC EDGAR · SEC filing · Form 8-K · Realized reaction, point-in-time, zero look-ahead.
Form 8-K MICROSOFT CORP For: Jul 29
Via SEC EDGAR
How MSFT reacted after the announcement.
| Horizon | Reaction | MSFT median |
|---|---|---|
| 5-min | +2.31% | — |
| to close | +2.99% | -0.11% |
Five minutes after the news, MSFT had moved +2.31%; by the close it stood at +2.99% — the two readings agree in direction.
Impact: Positive. Reaction = percent move vs. the price at the news timestamp. Sources below.
The announcement, and the market’s answer.
Microsoft filed Form 8-K with the SEC on Jul 29, 2026. It was one of 4 Microsoft headlines News Quantified labeled that day, so its measurement window overlaps with the others on a shared tape. The same session also carried Microsoft's "Evinced Harnesses Agentic Coding to Automatically and Reliably Fix…" and 2 other Microsoft headlines, each measured on its own clock.
Against the price at the news timestamp, MSFT moved +2.31% after five minutes and +2.99% by the close — about 26.5× Microsoft's median close-day move of -0.11% across 2,000+ events. Because several releases shared that day, their measurement windows overlap and no single headline cleanly owns the move.
This is the alert you’d have received.
Form 8-K MICROSOFT CORP For: Jul 29
Track MSFT and you’ll get one email like this the next time it moves on news — the headline, the measured reaction, and how it compares to MSFT’s baseline. Nothing else.
Track MSFT freeHow this compares to MSFT’s usual reaction.
Across 2,000+ labeled events, MSFT’s median 30-minute reaction to all news is +0.02% (53% up); by the close it is -0.11%.
Half of all Microsoft news events land between -0.33% and +0.40% at 30 minutes; this one is a single draw from that distribution.
That’s the median — get an email the next time MSFT moves on news →You just saw one reaction. There are 26M+ more.
See the full MSFT reaction history→Email me when MSFT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MSFT’s baseline. Nothing else.
Get “How MSFT reacts to news” as a PDF.
A free one-page summary: MSFT’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
How comparable MSFT events have landed.
Across 5 other recent Microsoft SEC filing events, the median close-day reaction was +2.99%. Each is measured the same way, from its own news timestamp.
| Date | Headline | 5-min | To close |
|---|---|---|---|
| Form 10-K MICROSOFT CORP For: Jun 30 | +2.31% | +2.99% | |
| Form 11-K MICROSOFT CORP For: Dec 31 | +0.30% | +4.40% | |
| Form 8-K MICROSOFT CORP For: Jun 02 | -0.21% | -1.38% | |
| Form SD MICROSOFT CORP | +1.62% | +4.10% | |
| Form 8-K MICROSOFT CORP For: May 13 | -0.14% | +1.54% |
The full MSFT reaction record.
Recent MSFT events, each with its measured reaction8
That same day, across the market8
Same measurement, same clock, different names — each headline measured from its own news timestamp, point-in-time.
Peer tickers, measured the same way4
Every US ticker is measured the same way, from its own news timestamp. Browse all tickers →
How the numbers are made.
How was MSFT's +2.31% reaction measured?
From the news timestamp, not the trading day: News Quantified takes the last trade before this SEC filing (Form 8-K) as the base price and measures the move five minutes of trading later — point-in-time, zero look-ahead. The same clock produced the +2.99% to-close figure.
What is Microsoft's median reaction, and how does this event compare?
Microsoft's median is drawn from 2,000+ labeled events; at 30 minutes it sits at +0.02%, and -0.11% by the close. This event's move is one draw from that distribution — ordinary or outlier, the chart's median ticks show which.
4 Microsoft headlines shared Jul 29, 2026. Whose reaction is this?
Each of the 4 same-day Microsoft events is measured from its own timestamp, but their windows overlap on one tape, so we show the cluster rather than pretending a single headline owns the move.
Does +2.99% predict Microsoft's next reaction?
No. +2.99% is a realized fact about Jul 29, 2026, not a forecast. Past reactions describe a distribution; they say nothing certain about any future move.
How to cite this reaction.
News Quantified. "Form 8-K MICROSOFT CORP For: Jul 29." MSFT realized price reaction, Jul 29, 2026. Retrieved from https://newsquantified.com/tickers/msft/news/form-8-k-microsoft-for-jul-29-2026-07-29
Canonical URL: https://newsquantified.com/tickers/msft/news/form-8-k-microsoft-for-jul-29-2026-07-29
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