Harbor Mid Cap Value Fund disclosed a reduction in its position in Cummins Inc. (NYSE:CMI) in its Q2 2026 investor letter, citing a disconnect between the stock’s recent price performance and its fundamental earnings growth. While Cummins remains a hold in the portfolio, the fund trimmed exposure as valuation scores deteriorated despite strong momentum scores, signaling a shift toward taking profits in one of the Industrials sector’s top performers.

Market Context

The move comes against a backdrop of robust global equity performance in the second quarter of 2026, with the S&P 500 posting a 15.2% return, its strongest quarter since 2020. This rally was largely driven by a capital spending cycle shift from software to hardware in Artificial Intelligence. Cummins Inc. has been a significant beneficiary of this trend, with shares up 38.56% over the past year. However, the stock has recently faced headwinds, declining 11.96% over the past month to close at $561.55 on September 8, 2026.

Analysis

Harbor Mid Cap Value Fund’s decision to trim CMI reflects a classic value investing discipline: reducing exposure when price appreciation outpaces fundamental improvements. The fund noted that while Cummins has performed well, the ranking of the stock within their model has deteriorated because earnings and cash flow have not kept pace with the price increases. Although strong momentum scores kept the stock in the 'hold' range, the weakening valuation metrics prompted the reduction. This action aligns with broader market sentiment where hedge fund interest in the company has cooled; the number of hedge fund portfolios holding CMI dropped to 60 at the end of Q2, down from 79 in the previous quarter.

Key Numbers

- Cummins Inc. (CMI) closed at $561.55 per share on September 8, 2026.

- The stock has declined 11.96% over the past month.

- Shares are up 38.56% over the past year.

- Cummins has a market capitalization of $77.30 billion.

- The 52-week trading range is $395.86 to $737.76.

- Hedge fund holders of CMI decreased to 60 from 79 in the prior quarter.

- The S&P 500 returned 15.2% in Q2 2026, while the Russell 2000 gained 21.5%.

- Harbor Mid Cap Value Fund returned 13.99% in Q2 2026, outperforming its benchmark.

What to Watch

Traders should monitor whether the recent 11.96% monthly pullback finds support near the lower end of the 52-week range ($395.86) or if it continues to erode the 38.56% annual gains. Key levels to watch include the current price of $561.55 and the psychological threshold of $550. The divergence between the stock's momentum and its valuation metrics suggests potential volatility as the market digests whether earnings growth will catch up to the price action. Additionally, continued declines in hedge fund ownership, which fell to 60 holders in Q2, may signal further institutional de-risking in the Industrials sector.