Meta Platforms's SEC filing (Form 8-K) moved META -0.38%
META moved -1.19% in five minutes and -0.38% by market close — about 6.6× Meta Platforms's median close-day move.
· SEC EDGAR · SEC filing · Form 8-K · Realized reaction, point-in-time, zero look-ahead.
Form 8-K Meta Platforms, Inc. For: Oct 29
Via SEC EDGAR
How META reacted after the announcement.
| Horizon | Reaction | META median |
|---|---|---|
| 30 sec | -1.05% | — |
| 1 min | -1.06% | — |
| 5 min | -1.19% | — |
| 10 min | -0.91% | — |
| 30 min | -0.12% | +0.00% |
| 60 min | -1.02% | — |
| 90 min | -2.05% | — |
| 120 min | -1.01% | — |
| to close | -0.38% | +0.06% |
- +1%
- 159 min
- +2%
- never traded
- +3%
- never traded
- +5%
- never traded
- -1%
- 0 min
- -2%
- 2 min
- -3%
- never traded
- -5%
- never traded
A hatched rung is a threshold the price never touched inside the measured window — not a missing measurement. Most news never moves a large-cap by 5% either way, so a mostly empty ladder is the finding, not a gap in the data.
| Held for | Return |
|---|---|
| D+1 | -4.68% |
| D+2 | -7.27% |
| D+3 | -8.79% |
| D+4 | -10.28% |
| D+5 | -9.05% |
| 1M | -8.34% |
| 3M | +5.59% |
| 6M | -4.30% |
| 12M |
Each row is measured from the price at the news to that horizon independently, so the ladder is not cumulative and a later row can sit above an earlier one. “Available” is a date, not a gap: that horizon has not elapsed yet for this event, and it is computed from the event’s own timestamp rather than from the data. An em dash is the other case — the horizon passed and no return was recorded.
Five minutes after the news, META had moved -1.19%; by the close it stood at -0.38% — the two readings agree in direction.
Impact: Neutral. Reaction = percent move vs. the price at the news timestamp. Sources below.
META’s news landed in the after-hours window; the main session closed -0.38%.
- Mainprior session
- After-hours4:00 – 8:00 PM
- Overnightno tape
- Pre-market4:00 – 9:30 AM
- Main session9:30 AM – 4:00 PM
Segment widths are fixed, so two events on different days sit in comparable places. Hatched segments are real elapsed time with no tape to measure — the overnight halt is not a gap in the data. This event carries no intraday receipt time, so it is not pinned to a minute.
| Window | What it answers | Anchor price | Result | vs S&P 500 |
|---|---|---|---|---|
| All | From the news to the first main-session close, across every session in between. | 699.20re-anchored to the first print after the news | -4.68% | — |
| After-hours | The move between the closing bell and the overnight halt. | — | not measured | — |
| Pre-market | The move between the pre-market open and the opening bell. | — | not measured | — |
| Main | The move inside the regular session, from the news to the close. | 669.00the price at the news | -0.38% | +0.19% |
The main-session result is measured upstream against the price at the news; the all-sessions result is computed here from its own anchor and close, so the two can differ in the last decimal. The adjusted column subtracts the S&P 500’s move over the same main-session span — there is no index anchor for the all-sessions span, so that cell stays empty rather than borrowing this one. After-hours and pre-market are measured upstream but populate on a small minority of events, so this page does not request them. Those rows are unmeasured, not empty.
The same event measured across every session8
| Horizon | Reaction |
|---|---|
| 30 sec | -0.03% |
| 1 min | +0.11% |
| 5 min | +0.91% |
| 10 min | -0.39% |
| 30 min | -0.67% |
| 60 min | -1.34% |
| 90 min | -1.94% |
| 120 min | -0.89% |
Where this META event came from, and what the tape did with it.
Meta Platforms filed Form 8-K with the SEC on Oct 29, 2025. It was one of 2 Meta Platforms headlines News Quantified labeled that day, so its measurement window overlaps with the others on a shared tape. The same session also carried Meta Platforms's "Meta Reports Third Quarter 2025 Results", each measured on its own clock.
Against the price at the news timestamp, META moved -1.19% after five minutes and -0.38% by the close — about 6.6× Meta Platforms's median close-day move of +0.06% 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 Meta Platforms, Inc. For: Oct 29
Track META 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 META’s baseline. Nothing else.
Set up META alerts →How this compares to META’s usual reaction.
Across 2,000+ labeled events, META’s median 30-minute reaction to all news is +0.00% (50% up); by the close it is +0.06%.
| Middle 50% of META reactions | -0.58% to +0.56% |
|---|---|
| Median reaction (30-min) | +0.00% |
| This event | -0.12% |
| Measured reactions | 2,000+ |
Half of all Meta Platforms news events land between -0.58% and +0.56% at 30 minutes; this one is a single draw from that distribution.
You just saw one reaction. There are 26M+ more.
See the full META reaction history →META’s session ranged -2.81% to +1.79% against the price at the news.
50.5M shares against a 30-day average of 6.7M.
What the average share actually traded at across the session, rather than at any one print.
The close moved -0.38% against a 20-day average true range of 15.39. META carries no market-cap or price-to-earnings figure on this record, and no short interest, so none is shown.
Email me when META moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to META's baseline. Nothing else.
How comparable META events have landed.
Across 5 other recent Meta Platforms SEC filing events, the median close-day reaction was +0.55%. Each is measured the same way, from its own news timestamp.
| Date | Headline | 5-min | To close |
|---|---|---|---|
| Form 10-Q Meta Platforms, Inc. For: Jun 30 | +2.07% | +2.67% | |
| Form 8-K Meta Platforms, Inc. For: Jul 29 | +2.07% | +2.67% | |
| Form 8-K Meta Platforms, Inc. For: May 27 | -1.10% | -4.58% | |
| Form SD Meta Platforms, Inc. | +0.49% | +0.55% | |
| Form 8-K Meta Platforms, Inc. For: Apr 30 | -0.74% | -1.35% |
8 more META events, each measured the same way.
Recent META events, each with its measured reaction8
That same day, across the market8
| Ticker | Headline | 5-min | To close |
|---|---|---|---|
| TSLA | Form DEFA14A Tesla, Inc. | +0.34% | -2.49% |
| UNH | Mercy Medical Center Recognized for Clinical Achievements by Healthgrades | +1.14% | -0.94% |
| NVDA | NVIDIA Sets Conference Call for Third-Quarter Financial Results | -1.05% | -1.11% |
| XOM | Gregory C. Garland Named to ExxonMobil Board of Directors | -0.73% | -1.47% |
| MSFT | Form 10-Q MICROSOFT CORP For: Sep 30 | +0.19% | -0.84% |
| MSFT | Form 8-K MICROSOFT CORP For: Oct 28 | +0.19% | -0.84% |
| V | Visa to Participate in Upcoming Investor Conferences | +1.34% | +0.88% |
| MSFT | Microsoft Cloud and AI Strength Drives First Quarter Results | +0.19% | -0.84% |
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 →
META carried 1 other record that day.
Each was measured the same way, from its own timestamp.
| Record | Event | 5-min | To close |
|---|---|---|---|
| Meta Reports Third Quarter 2025 Results | Press release | -1.19% | -0.38% |
How the numbers are made.
How was META's -1.19% 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 -0.38% to-close figure.
What is Meta Platforms's median reaction, and how does this event compare?
Meta Platforms's median is drawn from 2,000+ labeled events; at 30 minutes it sits at +0.00%, and +0.06% by the close. This event's move is one draw from that distribution — ordinary or outlier, the chart's median ticks show which.
2 Meta Platforms headlines shared Oct 29, 2025. Whose reaction is this?
Each of the 2 same-day Meta Platforms 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 -0.38% predict Meta Platforms's next reaction?
No. -0.38% is a realized fact about Oct 29, 2025, 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 Meta Platforms, Inc. For: Oct 29." META realized price reaction, Oct 29, 2025. Retrieved from https://newsquantified.com/tickers/meta/news/form-8-k-meta-platforms-for-oct-29-2025-10-29
Canonical URL: https://newsquantified.com/tickers/meta/news/form-8-k-meta-platforms-for-oct-29-2025-10-29
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