MTUM

The thesis

The iShares MSCI USA Momentum Factor ETF (MTUM) closed at $288.57 on 22 October 2026, below the $310 level the prior note called support, so the recovery case no longer holds. A chip selloff driven by rate-hike expectations and doubts about AI spending pulled the fund down. A close back above $310 would reopen the case; the 29 October 2026 Intel report and the 11 November 2026 MSCI index review are the next tests.

The fund closed at $320.00 on 9 October 2026 and at $288.57 on 22 October 2026, 16.2% below its $344.52 52-week high (adjusted daily closes). The 14-day relative strength index (a gauge of how fast a price has fallen or risen) was 19.1, a level usually read as heavily oversold. The business case in memory has not changed: Micron's 30 September 2026 report showed fiscal fourth-quarter revenue of $54.23 billion and guidance of $61.5 billion for the next quarter (Micron 8-K). The narrative is saturated: coverage of the chip rout is mainstream (Reuters 15 October 2026, 24/7 Wall St. 17 October 2026) and buying has weakened since the 6 October 2026 peak in the semiconductor ETF.

Bullish and bearish views on MTUM

The bull case on MTUM, in brief: Earnings strength is intact. The bear case: The $310 level has failed.

Bull case

• Earnings strength is intact. Micron guided fiscal first-quarter 2027 revenue to $61.5 billion, plus or minus $1.5 billion, and non-GAAP earnings to $38.15 per share (Micron 8-K, 30 September 2026). Taiwan Semiconductor reported third-quarter revenue of $46.72 billion at a 66.4% gross margin and guided fourth-quarter revenue to $52.3-54.3 billion, as reported by fourweekmba.com on 15 October 2026.
• Momentum readings are extreme. The fund's relative strength index was 19.1 on 22 October 2026, down from 57.3 on 9 October 2026. Readings this low have often come near short-term lows, though the selloff can continue.
• Nvidia held up better than peers. On 16 October 2026 Nvidia fell 1.43% while AMD fell 5.95% and Micron 5.63% (24/7 Wall St., 17 October 2026). The report read this as continued preference for the leading AI chip supplier.
• The price is still near the three-month start. The fund's three-month price change was -4.4% on 22 October 2026 (adjusted daily closes), so the longer uptrend has not fully reversed.

Bear case

• The $310 level has failed. The close of $288.57 on 22 October 2026 sits below the $310 support level the prior note identified (adjusted daily closes). The July decline low has not been tested in the figures available here.
• The selloff was historic. The Philadelphia Semiconductor Index fell 3.8% on 16 October 2026, its eighth straight losing session and longest streak since 2008 (24/7 Wall St.). Reuters reported on 15 October 2026 that chip stocks had lost about $1.64 trillion over six sessions.
• Rates and oil are working against growth shares. West Texas crude reached $101.91 on 14 October 2026 and the 10-year Treasury yield was 5.10% on 15 October 2026, with markets raising Federal Reserve rate-hike odds (24/7 Wall St.).
• Doubts about AI spending are growing. Bank of America's Sebastian Raedler said consensus hyperscaler capital-spending forecasts rose from $330 billion in early 2025 to $1 trillion, and that most major capital cycles of the past ended in disappointment (24/7 Wall St., 17 October 2026).
• Technology concentration is high. Information technology was 54.27% of the fund on 24 September 2026 and AMD was 5.39% on 10 September 2026 (BlackRock). AMD fell about 18.6% from 6 October to 16 October 2026 (24/7 Wall St.), so the fund's weights have likely shifted since the September tables.

Price setup

The fund closed at $288.57 on 22 October 2026, below $310 and 16.2% under the $344.52 52-week high (adjusted daily closes). The range between $288.57 and $310 is the first resistance zone; a daily close back above $310 would show the breakdown reversing. The 9 October 2026 close of $320.00 is the next reference above it.

A further close below $270 would extend the decline and end the case as framed here. The relative strength index of 19.1 shows the fall has been fast, and fast declines of this kind often bounce, but a bounce alone would not restore the earlier uptrend.

Crowding evidence has changed from the prior note. Retail selling of chip funds reached a record in the 28 September 2026 news report, and the iShares Semiconductor ETF (SOXX) fell to $493.39 on 16 October 2026 from $589.45 on 6 October 2026 (24/7 Wall St.). Intel's 29 October 2026 report is imminent, and options priced a move of about 13.2% either way as of 15 October 2026 (Earnings-Watcher). Insider selling and share issuance do not apply to an exchange-traded fund.

Catalysts, next 30 days

• 11 November 2026: MSCI announces its November index review, effective 1 December 2026.

Elapsed catalysts

• 28 October 2026: Federal Reserve policy decision at the 27 October to 28 October 2026 meeting. Rate-hike expectations are a cited driver of the chip selloff. (passed 9d ago)
• 29 October 2026, after the close: Intel third-quarter 2026 report (PrimeXBT, Earnings-Watcher). Intel fell 5.79% on 16 October 2026. (passed 8d ago)
• ~3 November 2026, est.: AMD quarterly report. AMD was 5.39% of the fund on 10 September 2026. (passed 3d ago)

What would change the view

The case breaks on a daily close below $270, which would extend the decline well past the 22 October 2026 close of $288.57. A guidance cut or demand warning from a major chip holding such as Intel or AMD at its report would also end it. A daily close back above $310 would restore the earlier level and reopen the recovery case; a close above $344.52 would confirm it. A MSCI announcement on 11 November 2026 that removes or cuts memory and AI-chip holdings would change what the fund owns.

What it trades with

MTUM moves with AI-linked chip shares because information technology was 54.27% of the fund on 24 September 2026 (BlackRock). On 16 October 2026 Micron fell 5.63%, AMD 5.95%, Lam Research 4.87% and Broadcom 4.52% (24/7 Wall St.), so the fund's largest chip holdings fell together. Interest-rate expectations and oil prices have also affected the group: the 10-year Treasury yield was 5.10% on 15 October 2026.