polymarket-tui/blog/nvidia-apple-market-cap

NVIDIA Overtakes Apple: Polymarket's Largest-Company Odds

Apple reported Q3 fiscal-2026 earnings after the close on July 30: revenue and profit both beat estimates, but Services and Greater China revenue missed, and the stock fell 6.65% in after-hours trading. On Polymarket, the "Largest Company end of July?" market - which resolves on where market caps land at today's close - flipped hard: NVIDIA's Yes price went from 13c to 68c in the first thirty minutes after the report, and Apple's fell from 87c to 31c. As of 2026-07-31 09:24 UTC, NVIDIA prices at 89.4c and Apple at 10.15c. Numbers below are from the Gamma and CLOB APIs, fetched at that time.

01The beat inside the miss

Why a beat sent the stock down

Apple's headline numbers were strong: revenue of $109.4B, up 16% year over year and ahead of estimates, and earnings per share of $2.02, up 29% year over year and also ahead of estimates. The stock fell anyway, on two misses buried in the segment detail. Services revenue came in at $30.74B against a $31.22B estimate, and Greater China revenue came in at $18.8B against a $19.5B estimate. Management's forward guidance was weak, citing supply constraints. Between those three items, the stock dropped 6.65% after hours, from $333.43 to $311.25 - a roughly $320B paper loss on Apple's roughly 14.7B shares outstanding.

That drop mattered more than usual because of where Apple's stock price already was. It had touched a $5 trillion market cap for the first time on July 28, having spent the back half of July trading the title of world's largest company back and forth with NVIDIA - Apple briefly took the lead on July 17, NVIDIA held it into late July, and Apple reclaimed it on July 27 before Tuesday's $5 trillion print. A 6.65% drop from that level was large enough to hand the lead back.

02The hour it flipped

Thirty minutes, two order books

Polymarket's "Largest Company end of July?" event splits the question into one Yes/No market per company. Thirty minutes before the earnings report circulated, at 20:30 UTC on July 30, NVIDIA's Yes price sat at 13.2c and Apple's at 86.75c - Apple was still the favorite. By 21:00 UTC, NVIDIA was at 67.5c and Apple at 31.45c. Both kept moving through the next several hours as more of the after-hours reaction and analyst commentary came in, eventually settling into NVIDIA's favor.

Polymarket 'largest company' odds for NVIDIA and Apple, July 30-31 2026: NVIDIA's Yes price jumped from about 13c to 68c within 30 minutes of Apple's Q3 earnings release near 21:00 UTC on July 30, later reaching 90c; Apple's Yes price crashed from about 87c to 31c in the same window and fell further to near 10c. 0c 20c 40c 60c 80c 100c 09:30 17:27 01:24 09:21 AAPL Q3 EARNINGS NVIDIA Apple NVIDIA 89.5c Apple 10.55c
NVIDIA and Apple "largest company" Yes prices, July 30 09:30 UTC to July 31 09:21 UTC, 30-minute prints. CLOB price history, fetched 2026-07-31 09:24 UTC.
LARGEST COMPANY (JUL 30 20:30 UTC -> JUL 31 09:24 UTC)
NVIDIA Yes                          13.2c  -> 89.4c
Apple Yes                          86.75c  -> 10.15c
03A five-way book pricing two horses

Everyone else is priced at zero

The event lists a Yes/No market for each of the seven companies that have plausibly held the largest-market-cap title this year, plus a catch-all "any other company" contract. Right now the book treats it as a two-way race:

LARGEST COMPANY, JUL 31 09:24 UTC       PRICE     24H
NVIDIA                                  89.4c  +84.9c
Apple                                  10.15c  -85.6c
Microsoft                               0.05c       --
Alphabet                                0.05c       --
Tesla                                   0.05c       --

Microsoft and Alphabet sit at 0.05c each despite both carrying market caps in the trillions - Alphabet's is close to $4.3T by some estimates - because neither has shown any sign of closing the gap to Apple or NVIDIA by today's close, and this market only pays out on today. The event has traded $1.35M over the past 24 hours against $1.62M in resting liquidity, almost all of it concentrated in the NVIDIA and Apple books once the earnings reaction hit.

04Reading conviction in the book

Tight spreads on an 85-cent move

An 85-cent move in a few hours can happen on thin, panicky order books where the last trade means little. That is not what this book shows. NVIDIA's Yes contract currently bids 88.4c against a 90.4c ask, a 2c spread with $28,977 resting on the token; Apple's bids 9.8c against a 10.5c ask, a 0.7c spread with $60,332 resting. Both are tight enough that a market order in either direction would move the price only a fraction of a cent - the kind of spread you see when a book has genuinely repriced, not when it has emptied out.

The market resolves to whichever company has the largest market cap at today's regular session close - hours after this post is written. The prices above are what the book thinks right now, not a forecast of where they finish.

05Watching a repricing live

Seeing the flip as it happens

A move like this - visible in the order book within minutes of an earnings release, still resolving hours later - is exactly the kind of event a live terminal is built for. In polymarket-tui, opening the "Largest Company" event lists every company's price and 24-hour move together, and drilling into NVIDIA or Apple's market shows the live order book and price history inline, no account needed to browse.

$ uv tool install polymarket-tui
$ polymarket-tui

The install page has Homebrew and one-liner options.

Prices are a snapshot from 2026-07-31 09:24 UTC and will have moved - the market resolves on today's actual market-cap standings at close, not on this post. More posts on the blog index, or subscribe via RSS. Not affiliated with Polymarket; nothing here is financial advice.