Tesla's SEC filing (Form DEFA14A) — TSLA's reaction is being measured
TSLA's realized reaction is still being measured.
· SEC EDGAR · SEC filing · Form DEFA14A · Realized reaction, point-in-time, zero look-ahead.
Form DEFA14A Tesla, Inc.
Via SEC EDGAR
Reaction is being measured.
This event is recent. News Quantified labels the realized price reaction once the trading sessions after the news complete — point-in-time, with zero look-ahead. The measured move will appear here, and below in TSLA’s reaction history.
TSLA’s news landed in the pre-market window; the main session closed -0.14%.
- 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 |
|---|---|---|---|
| All | From the news to the first main-session close, across every session in between. | 354.70re-anchored to the first print after the news | -0.14% |
| 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. | — | not measured |
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. 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 | -0.10% |
| 1 min | -0.20% |
| 5 min | -0.31% |
| 10 min | -0.10% |
| 30 min | -0.54% |
| 60 min | -0.35% |
| 90 min | -0.07% |
| 120 min | -0.07% |
Where this TSLA event came from, and what the tape did with it.
Tesla filed Form DEFA14A with the SEC on Oct 19, 2026. It was one of 3 Tesla headlines News Quantified labeled that day, so its measurement window overlaps with the others on a shared tape. The same session also carried Tesla's "Form ARS Tesla, Inc. For: Dec 31" and 1 other Tesla headline, each measured on its own clock.
Against the price at the news timestamp, TSLA's reaction is still being measured. Because several releases shared that day, their measurement windows overlap and no single headline cleanly owns the move.
How this compares to TSLA’s usual reaction.
Across 2,000+ labeled events, TSLA’s median 30-minute reaction to all news is -0.10% (48% up); by the close it is +0.02%.
| Middle 50% of TSLA reactions | -0.70% to +0.52% |
|---|---|
| Median reaction (30-min) | -0.10% |
| Measured reactions | 2,000+ |
Half of all Tesla news events land between -0.70% and +0.52% at 30 minutes; this one is a single draw from that distribution.
You just saw one reaction. There are 26M+ more.
See the full TSLA reaction history →What the TSLA tape carried around this event.
The 20-day average true range into this session was 11.82. TSLA carries no market-cap or price-to-earnings figure on this record, and no short interest, so none is shown.
Email me when TSLA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TSLA's baseline. Nothing else.
How comparable TSLA events have landed.
Across 5 other recent Tesla SEC filing events, the median close-day reaction was -6.25%. Each is measured the same way, from its own news timestamp.
| Date | Headline | 5-min | To close |
|---|---|---|---|
| Form 8-K Tesla, Inc. For: Oct 02 | +1.75% | +2.86% | |
| Form 8-K Tesla, Inc. For: Sep 29 | -1.30% | +0.88% | |
| Form 10-Q Tesla, Inc. For: Jun 30 | -0.98% | -6.25% | |
| Form 8-K Tesla, Inc. For: Jul 22 | -0.98% | -6.25% | |
| Form 8-K Tesla, Inc. For: Jul 02 | -0.78% | -8.13% |
8 more TSLA events, each measured the same way.
Recent TSLA events, each with its measured reaction8
That same day, across the market5
Same measurement, same clock, different names — each headline measured from its own news timestamp, point-in-time.
Peer tickers, measured the same way4
| Ticker | Most recent event | 5-min | To close |
|---|---|---|---|
| Amazon (AMZN) | Amazon.com to Webcast Third Quarter 2026 Financial Results Conference Call | -0.29% | -2.04% |
| Home Depot (HD) | The Home Depot Announces 2026 Innovation Award Winners | -0.05% | +0.27% |
| Apple (AAPL) | MacStadium and Presidio Partner to Bring Apple to the Enterprise | -0.03% | -0.81% |
| NVIDIA (NVDA) | NVIDIA RTX Spark PCs Available Today — A New Beginning for Windows PCs | -0.11% | -1.20% |
Every US ticker is measured the same way, from its own news timestamp. Browse all tickers →
TSLA carried 2 other records that day.
Each was measured the same way, from its own timestamp.
| Record | Event | 5-min | To close |
|---|---|---|---|
| Form ARS Tesla, Inc. For: Dec 31 | SEC filing · Form ARS | — | — |
| Form DEF 14A Tesla, Inc. For: Dec 03 | SEC filing · Form DEF | — | — |
How the numbers are made.
How was TSLA's 5-minute reaction measured?
From the news timestamp, not the trading day: News Quantified takes the last trade before this SEC filing (Form DEFA14A) as the base price and measures the move five minutes of trading later — point-in-time, zero look-ahead. The same clock produced the to-close figure.
What is Tesla's median reaction, and how does this event compare?
Tesla's median is drawn from 2,000+ labeled events; at 30 minutes it sits at -0.10%, and +0.02% by the close. This event's move is one draw from that distribution — ordinary or outlier, the chart's median ticks show which.
3 Tesla headlines shared Oct 19, 2026. Whose reaction is this?
Each of the 3 same-day Tesla 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 a measured reaction predict Tesla's next reaction?
No. a measured reaction is a realized fact about Oct 19, 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 DEFA14A Tesla, Inc.." TSLA realized price reaction, Oct 19, 2026. Retrieved from https://newsquantified.com/tickers/tsla/news/form-defa14a-tesla-2026-10-19
Canonical URL: https://newsquantified.com/tickers/tsla/news/form-defa14a-tesla-2026-10-19
Query this dataset via the API & MCP →