GFS · GlobalFoundries Inc.

The thesis

GlobalFoundries is a contract chipmaker whose new AI packaging, optical, power and quantum contracts have not yet lifted the shares. They closed at $46.11 on 28 October 2026, 48.5% below the $89.61 52-week high and just above the $44.76 close of 28 August 2026. The third-quarter report on 4 November 2026 settles whether revenue confirms the 50-60% full-year growth in communications and data-center chips that management guided on 5 August 2026.

The contract news is real. On 8 October 2026 GlobalFoundries and TSMC announced a multi-year agreement of about $2 billion for U.S.-made silicon interposers (the layer that links AI processors to memory) for TSMC's CoWoS packaging, made in Malta, New York. On 19 October 2026 company news carried the headline "GlobalFoundries Announces Additional EUR 1.1 Billion Investment in Dresden Site".

The narrative is maturing: the contract announcements are well known, and the shares slipped from $50.17 on 2 October 2026 and $48.76 on 15 October 2026 to $46.11 despite them. The market is waiting for reported revenue, not more announcements. The new contracts pay out mostly from 2028, so the 4 November 2026 print tests the existing business.

Bullish and bearish views on GlobalFoundries Inc.

The bull case on GlobalFoundries Inc. (GFS), in brief: A very large customer committed. The bear case: The growth segment is a minority of sales.

Bull case

• A very large customer committed. TSMC's roughly $2 billion interposer agreement was announced on 8 October 2026. Neither company has broken out annual revenue.
• The target segment is growing fast. Second-quarter revenue was $1.786B, up 6% year on year, against a $1.765B analyst estimate. Communications infrastructure and data-center revenue grew 62% (company results, 5 August 2026).
• Guidance sits at or above expectations. Third-quarter revenue guidance is $1.860B-$1.910B and adjusted earnings per share (EPS) $0.46-$0.56. MarketBeat showed consensus at $1.89B revenue and $0.511 EPS on 28 October 2026.
• The pipeline keeps widening. A multi-year quantum manufacturing partnership with Xanadu came on 6 October 2026. A 7nm-class FDX Fusion platform for physical AI followed on 9 October 2026, with manufacturing planned in Dresden from 2028. Marvell's silicon germanium capacity agreement for optical connectivity dates from 17 September 2026.
• Targets sit far above the price. Cantor Fitzgerald reiterated Overweight with a $90 target on 15 October 2026. TD Cowen reiterated Buy at $75 the same day. MarketBeat put the average 12-month target at $75.79 on 28 October 2026.

Bear case

• The growth segment is a minority of sales. Smart mobile is 36% of revenue and is guided to a low-teens full-year decline. Automotive is 19% and fell 10% year on year in Q2 (company results, 5 August 2026). Total growth stays in single digits.
• The newest contracts pay out in 2028. The interposer ramp and the Dresden platform start years from now, while capital spending rises.
• A controlling holder can sell. Mubadala holds roughly 73% and cleared stock at $42.00 in March and $86.30-$86.80 in May 2026. Its standstill lapsed around 26 July 2026.
• New shares are being issued. A Form 6-K filed 8 September 2026 disclosed an agreement to issue 9,907,399 ordinary shares to the U.S. Department of Commerce. GuruFocus showed $3.8M of net insider selling over twelve months and no buying on 2 October 2026.
• Analysts are divided. MarketBeat counted 10 Hold, 8 Buy and 2 Sell ratings on 28 October 2026. Morgan Stanley's target was $60 and UBS's $55 after the August report. Stifel initiated at Buy with a $60 target on 2 September 2026.

Price setup

The last adjusted close was $46.11 on 28 October 2026. The 14-day relative strength index (RSI) is 40.9, below the midpoint and above oversold. The shares are down 7.5% over three months.

Three closes frame the range. The $44.76 close of 28 August 2026 is the low of the decline from $89.61. The $47.82 close of 18 September 2026 was named as a recovery marker in the previous note, and the shares have closed below it. The $50.17 close of 2 October 2026 is the recent high.

There is no gap above a rising moving average here: the shares trade far below the 52-week high. Crowding evidence is of a different kind. The earnings report is seven days away, a 73% holder has sold twice this year, and shares are being issued to the U.S. government. Insider activity shows net selling. Retail attention is not measured in available data.

Catalysts, next 30 days

• ~2027-Q1 (est.), Monolithic Power Systems production start in Singapore. Outside the window, but a delay would weaken the power-chip part of the case.

Elapsed catalysts

• 4 November 2026, Q3 2026 results. The company reports before the market opens, with a call at 8:30 a.m. ET. Guidance is $1.860B-$1.910B revenue and $0.46-$0.56 adjusted EPS. Statutory EPS was guided to $0.32-$0.42. (passed 2d ago)
• Any day, Mubadala sale. The standstill lapsed around 26 July 2026. A marketed block would set a new clearing price. (passed 103d ago)
• TBD, co-packaged-optics agreement. The up-to-$300M letter of intent signed 29 July 2026 has not been reported as a definitive Commerce agreement. (passed 100d ago)

What would change the view

The case breaks if third-quarter revenue lands under the $1.860B low end of guidance, or if full-year communications and data-center growth is guided below 50%. It also weakens if management drops or softens the guide that silicon photonics revenue more than doubles in 2026. Management has said silicon germanium revenue currently exceeds silicon photonics, so that line rests on a small base.

On price, a daily close below $44.76, the 28 August 2026 close, would put the shares under the low of the whole decline from $89.61. A prospectus supplement or Schedule 13D/A showing Mubadala below its roughly 73% stake would add supply pressure. Third-quarter capital spending above 23% of revenue, or a cut to the roughly 10% full-year adjusted free-cash-flow margin target, would show the 2028 contracts costing more than they return in the near term.

A beat with the 50-60% growth guide held, and a block sale absorbed without a new low, would support the case.

What it trades with

The shares trade with the semiconductor sector. The SOXX semiconductor fund's weakness in mid-October coincided with the pullback from $50.17.

TSMC is both a customer for interposers and a peer in advanced packaging, so TSMC capacity or CoWoS demand commentary carries over to this name. Marvell and Navitas are partners, and their optical and power-chip orders feed the diversification story.

U.S. industrial policy matters directly: the CHIPS award, the Commerce equity stake and the quantum award tie the company's funding to Washington. Mubadala's ownership makes sale headlines a separate price driver from operating news.