ACLSAxcelis Technologies, Inc.
What is the market doing?
No clear lean: nothing decisive, though in a downtrend (−13% vs 200-day).
In a downtrend, below its 50- and 200-day averages. Oversold (RSI 19). Price is −13% vs its 200-day average.
Moderately shorted, settled Sep 30, 2026, about a week of normal trading to cover. Level with the previous count, down from 6.2% of shares outstanding three months ago.
Against the whole market›
Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.
Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.
How ACLS is trading
Axcelis Technologies, Inc. is +27% over the past year while the S&P 500 is +16%: 11 points ahead of the market.
1-year return · S&P 500 +16%
- vs 200-day average
- −13%
vs 200-day average · a clear downtrend
- RSI (14)
- 19
RSI (14) · oversold, sold harder than it has been bought
- Below its 52-week high
- 44%
Below its 52-week high
Details›
- Last close2026-10-23
- $106.44
- 1 monthS&P 500 −0.94%
- −8.3%
- 1 yearS&P 500 +16%
- +27%
- 5 yearsS&P 500 +86%
- +119%
- vs 50-day average$121.35
- −12%
- 52-week high
- $191.60
- 52-week low
- $74.12
- Annualised volatility
- 60%
- Insider selling, net, 6 monthsForms 3/4/5 to 2026-10-22
- $4.3M
| Year | Return |
|---|---|
| 2026 (year to date) | +32% |
| 2025 | +15% |
| 2024 | −46% |
| 2023 | +63% |
| 2022 | +6.4% |
| 2021 | +156% |
| 2020 | +21% |
| 2019 | +35% |
| 2018 | −38% |
| 2017 | +97% |
| Month | Years | Positive | Average |
|---|---|---|---|
| Jan | 10 | 7 of 10 | +5.9% |
| Feb | 10 | 5 of 10 | −0.75% |
| Mar | 10 | 6 of 10 | +2.1% |
| Apr | 10 | 5 of 10 | +2.8% |
| May | 10 | 7 of 10 | +7.3% |
| Jun | 10 | 6 of 10 | +7.3% |
| Jul | 11 | 6 of 11 | +1.0% |
| Aug | 11 | 3 of 11 | −0.72% |
| Sep | 11 | 5 of 11 | +4.3% |
| Oct | 11 | 5 of 11 | −3.8% |
| Nov | 10 | 6 of 10 | +8.6% |
| Dec | 10 | 5 of 10 | +2.1% |
End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.
Where the price stands
Its trend against the 50-day and 200-day averages, and the levels it keeps coming back to.
What it has returned
With dividends, year by year, month by month, and by calendar month on average.
Semiconductor Equipment & Materials
Ranks #2 of 17 by RyuScore