Allegro Microsystems Stock Rockets 18% With 7-Day Winning Streak
Allegro Microsystems (ALGM) – a designer and manufacturer of sensor and analog power ICs – hit a 7-day winning streak, with cumulative gains over this period amounting to 18%. The company’s market cap has surged by about $1.3 Bil over the last 7 days and currently stands at $8.2 Bil.
Is this an opportunity or a trap? There are a few things to fear in ALGM stock given its overall Weak operating performance and financial condition. But keeping in mind its Very High valuation, we think that the stock is Very Unattractive (For details, see Buy or Sell ALGM).
But here is the interesting part. You are reading about this 18% move after it happened. The market has already priced in the news. To catch the next winner before the headlines, you need predictive signals, not notifications. High Quality Portfolio is based on an architecture that includes such signals.
Returns vs S&P 500
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The following table summarizes the return for ALGM stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | ALGM | S&P 500 |
|---|---|---|
| 1D | 1.2% | 0.8% |
| 7D (Current Streak) | 18.5% | 2.0% |
| 1M (21D) | 35.2% | 8.7% |
| 3M (63D) | 33.8% | 3.6% |
| YTD 2026 | 67.3% | 4.7% |
| 2025 | 20.7% | 16.4% |
| 2024 | -27.8% | 23.3% |
| 2023 | 0.8% | 24.2% |
However, big gains can follow sharp reversals – but how has ALGM behaved after prior drops? See ALGM Dip Buyer Analysis to learn more.
Gains and Losses Streaks: S&P 500 Constituents
There are currently 29 S&P constituents with 3 days or more of consecutive gains and 61 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 13 | 21 |
| 4D | 8 | 23 |
| 5D | 2 | 13 |
| 6D | 1 | 0 |
| 7D or more | 5 | 4 |
| Total >=3 D | 29 | 61 |
Key Financials for Allegro Microsystems (ALGM)
Last 2 Fiscal Years:
| Metric | FY2024 | FY2025 |
|---|---|---|
| Revenues | $1.0 Bil | $725.0 Mil |
| Operating Income | $209.5 Mil | $-19.8 Mil |
| Net Income | $152.7 Mil | $-73.0 Mil |
Last 2 Fiscal Quarters:
| Metric | 2026 FQ2 | 2026 FQ3 |
|---|---|---|
| Revenues | $214.3 Mil | $229.2 Mil |
| Operating Income | $6.2 Mil | $9.6 Mil |
| Net Income | $6.5 Mil | $8.3 Mil |
While ALGM stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The 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.