STE Stock Falls -17% With A 10-day Losing Spree On Tariff Fears & Insider Sale
Steris (STE) – a provider of infection prevention and sterilization products – hit a 10-day losing streak, with cumulative losses over this period amounting to -17%. The company’s market cap has crashed by about $4.2 Bil over the last 10 days and currently stands at $21 Bil.
The stock has YTD (year-to-date) return of -16.0% compared to -1% for S&P 500. This calls for a re-evaluation of the stock’s valuation to find out whether this is an opportunity or a trap.
What Triggered The Slide?
[1] Margin Pressure & Tariff Fears
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While reported in Feb, the market’s concern over a $55M tariff impact intensified in March as the stock broke below its 50-day moving average. This technical breakdown turned a month-old concern into a current sell-off.
[2] Insider Selling
A Director’s sale of 3,098 shares ($734k) earlier this month acted as a negative sentiment signal mid-streak, accelerating the downward momentum as institutional confidence wavered.
Opportunity or Trap?
Below is our take on valuation.
There is a near-equal mix of good and bad in STE stock given its overall Moderate operating performance and financial condition. This is aligned with the stock’s Moderate valuation because of which we think it is Fairly Priced (For details, see Buy or Sell STE).
But here is the real interesting point.
You are reading about this -17% move after it happened. The market has already priced in the news. To avoid the next loser before the headlines, you need predictive signals, not notifications. Our High Quality Portfolio has a risk model designed to reduce exposure to losers.
Returns vs S&P 500
The following table summarizes the return for STE stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | STE | S&P 500 |
|---|---|---|
| 1D | -4.2% | 0.0% |
| 10D (Current Streak) | -16.6% | -1.9% |
| 1M (21D) | -13.0% | -2.4% |
| 3M (63D) | -17.3% | -0.9% |
| YTD 2026 | -16.0% | -1.0% |
| 2025 | 24.6% | 16.4% |
| 2024 | -5.6% | 23.3% |
| 2023 | 20.2% | 24.2% |
Gains and Losses Streaks: S&P 500 Constituents
There are currently 4 S&P constituents with 3 days or more of consecutive gains and 186 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 1 | 70 |
| 4D | 1 | 51 |
| 5D | 2 | 25 |
| 6D | 0 | 19 |
| 7D or more | 0 | 21 |
| Total >=3 D | 4 | 186 |
Key Financials for Steris (STE)
Last 2 Fiscal Years:
| Metric | FY2024 | FY2025 |
|---|---|---|
| Revenues | $5.1 Bil | $5.5 Bil |
| Operating Income | $862.2 Mil | $960.8 Mil |
| Net Income | $378.2 Mil | $614.6 Mil |
Last 2 Fiscal Quarters:
| Metric | 2026 FQ2 | 2026 FQ3 |
|---|---|---|
| Revenues | $1.5 Bil | $1.5 Bil |
| Operating Income | $268.0 Mil | $273.7 Mil |
| Net Income | $191.9 Mil | $192.8 Mil |
The losing streak STE stock is currently on doesn’t inspire much confidence among investors. In contrast, Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.