# Largest Company end of December 2026?

DataSnack's model puts this at 86% seven days from now (10 Nov 2026); the market's number (Polymarket) is 83%. It has no graded forecasts yet; the first is graded on 12 Nov 2026.

## DataSnack's read

**Apple leads on policy exposure, not earnings, and Nvidia's report can reverse it**

The race matters because it shows how investors price AI regulation and AI-driven costs across AI-linked valuations. The model's case rests on short-run moves in Apple's 63% chance partly reversing, giving 68%, though it trails no-change.

## The numbers

- The market's number (Polymarket) now: 83% ([the market](https://polymarket.com/event/largest-company-end-of-december-2026))
- DataSnack's model, seven days from now: 86%
- The market closes: 1 Jan 2027
- How it resolves: This market will resolve to the largest company in the world by market cap on December 31, 2026, as of market close. The resolution source for this market will be a consensus of credible reporting.
- Record: It has no graded forecasts yet; the first is graded on 12 Nov 2026.
- Replay on the last 60 days: off by 8.1 points against 8.4 points for standing still; closer on 30 of 60 days
- Fitted on 332 days of history

## How the model works

Apple and Nvidia are only about $149 billion apart and swap the top spot on daily moves. The model starts from the market's own number, applies the partial pull-back, then adds the day's change in the reading of stories that Nvidia has retaken the top spot, so a real swap in standing can carry the number.

- About 0.301 in log-odds of each recent move in Apple's chance carries into next week, so a negative number means the move partly reverses. DataSnack's author expected -0.339 in log-odds; the data say 0.301 in log-odds ± 0.066. A rough rule.
- Each full point the reading of Nvidia retaking the top spot rises in a day moves Apple's chance of being largest by about 0 in log-odds in log-odds. DataSnack's author expected -0.5 in log-odds; the data say 0 in log-odds ± 0.28. A rough rule.

## Sources

- Largest Company end of December 2026? · Apple: 83% on 10 Nov 2026
- Reading: stories say Nvidia has retaken the top market-cap spot: 0.255 score on 9 Nov 2026

## The record

It has no graded forecasts yet; the first is graded on 12 Nov 2026.

Waiting for their day:

- Made 5 Nov 2026 for 12 Nov 2026: 68%
- Made 6 Nov 2026 for 13 Nov 2026: 66%
- Made 7 Nov 2026 for 14 Nov 2026: 63%
- Made 8 Nov 2026 for 15 Nov 2026: 65%
- Made 9 Nov 2026 for 16 Nov 2026: 71%
- Made 10 Nov 2026 for 17 Nov 2026: 71%

## Questions

**What is DataSnack's forecast?** DataSnack's model says 86% seven days from now.

**What is the market's number?** The market's number (Polymarket) is 83%.

**How does the model work?** It is an explicit equation fitted on data, with every link and source listed above. DataSnack's agents propose changes every night, and a replay against real data decides what is kept.

**How accurate has it been?** It has no graded forecasts yet; the first is graded on 12 Nov 2026. DataSnack's overall record is at https://datasnack.ai/accuracy.

**Can I download the model?** Readers who cover this market can export the model as an Excel workbook with working formulas from its page. A free example workbook: https://datasnack.ai/site/labs/datasnack-tariff-mortgage-lab.xlsx.

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Canonical: https://datasnack.ai/m/ch:c5685444080a · Updated 10 Nov 2026 17:14 UTC · DataSnack forecasts are analysis, not investment advice.