The 52-Week-High List: 17 Mid Cap Names On Monday
As of Monday, October 26, there are 17 Mid Cap US and Canada-listed stocks in the Trefis coverage universe trading at their 52-week highs. Mid Cap here means a market value between $10 billion and $40 billion, the upper figure excluded.
At about $27.9 billion in market value, West Pharmaceutical Services (WST) is the largest company on the list; its stock is up 6.6% over the past month and up 28.9% over the past year. Health Care contributed the most names, 7 of the 17. For context, the S&P 500 is down 0.8% over the past month, including dividends.

The 10 Largest, By Market Cap
The table below shows the 10 largest of the 17 names, sorted by market capitalization, with returns over four windows:
| Tickers | Market Cap |
1D Return |
1W Return |
1M Return |
1Y Return |
|---|---|---|---|---|---|
| WST | $27.9 Bil | 0.7% | 2.8% | 6.6% | 28.9% |
| RBRK | $27.5 Bil | 3.6% | 17.6% | 21.8% | 73.6% |
| PR | $21.6 Bil | 1.1% | 3.9% | 20.6% | 108.2% |
| OVV | $20.3 Bil | 0.4% | 3.6% | 20.7% | 95.4% |
| MEDP | $18.9 Bil | 1.1% | 9.2% | 9.4% | 13.4% |
| RVTY | $17.9 Bil | 1.0% | 6.3% | 6.2% | 64.8% |
| CRL | $17.2 Bil | 3.4% | 19.1% | 22.0% | 87.1% |
| HAS | $16.7 Bil | 0.4% | 19.8% | 33.9% | 56.2% |
| HALO | $15.0 Bil | 1.9% | 4.5% | 12.4% | 91.4% |
| CART | $14.3 Bil | 7.9% | 22.0% | 41.0% | 54.4% |
What Sits Behind The Biggest New Highs?
West Pharmaceutical Services (WST) trades at 49.5 times trailing earnings, grew revenue 12.4% over the last twelve months and earned an operating margin of 21.7%.
Rubrik (RBRK) grew revenue 42.4% over the last twelve months and posted an operating margin of -18.3%.
Across the list, one-month moves range from +0.1% for Bio-Techne (TECH) to +42.7% for Netskope (NTSK).
The median stock on the list is up 54.4% over the past year.
5 of the 17 names are also S&P 500 members.
A new high tells you what the market already believes. The harder question is which of these runs management itself is underwriting. Our Guidance Momentum screen tracks exactly that: stocks where the company raised its own forward numbers.
Chasing Highs Is A Reflex. Owning Strength Is A System
A 52-week-high list is seductive: everything on it has been going right. But buying a stock because it is at its high is buying a price, and prices revert; what persists is the quality underneath the run.
The Trefis High Quality (HQ) Portfolio is built to own that quality before and after it makes headlines: roughly 30 businesses selected for consistent cash generation, strong margins, and resilient balance sheets, sized and rebalanced with rules. It has a track record of outpacing a benchmark that combines the S&P 500, the S&P MidCap 400, and the Russell 2000. Admire the list; own the system.