How Much Further Can the Semiconductor Rally Go?
U.S. semiconductor stocks have been on an absolute tear this year. As of May 12, 2026, SOXX is up 71% YTD, while SMH is up around 55%. Quite a few semiconductor names have already doubled this year.
Looking at the top 20 gainers in the space, I think the rally has mainly been driven by three themes:
1. Memory supercycle: SNDK, MU, WDC, STX, SIMO, MRAM
2. AI optical / interconnect plays: AAOI, LITE, COHR
3. Semiconductor equipment, testing, and materials: AEHR, ICHR, UCTT, FORM, AXTI, ATOM
So the big question now is obvious:
How much longer can this semiconductor rally last?
As a short-term trader, here are the main signals I’m watching.
1. First, I Check Whether the Main Trend Is Broken
Before looking at individual stocks, I always start with the sector-level charts: SMH, SOXX, and the SOX index.
The key moving average I care about most is the 50-day moving average.
For strong momentum stocks, the 20-day moving average often gets broken during normal volatility. That alone does not necessarily mean the trend is over. But as long as the 50-day moving average holds, or a temporary break is quickly reclaimed, I generally assume the uptrend is still intact.
Right now, in my view, the main trend is still alive.
2. Relative Strength: Is Semiconductors Still Beating QQQ and SPY?
This matters more than just looking at whether prices are going up.
I mainly watch two relative strength ratios:
| Ratio | What it tells me |
|---|---|
| SMH / QQQ | Whether semis are outperforming broader tech |
| Leading stock / SMH | Whether an individual stock is outperforming the semiconductor sector |
If SMH/QQQ keeps rising, it means capital is still actively rotating into semiconductors, rather than the sector merely drifting higher with the broader market.
But if SMH keeps going up while SMH/QQQ starts flattening or rolling over, that means semiconductors are no longer the leadership group. They have become just another rising sector. That is usually when small-cap momentum starts weakening and chasing breakouts becomes much riskier.
Over the past 30 trading days, the SMH/QQQ ratio has climbed from 100 to roughly the 119–122 range, which shows that SMH has significantly outperformed QQQ over the last month.
The same logic applies at the stock level. If names like LITE, AAOI, MU, SNDK, or AXTI start underperforming SMH, even before they actually break down, that can be an early sign that the main upside momentum is fading.
The chart below shows the relative strength ratios of LITE, AAOI, and MU versus SMH over the past three months.
3. Price and Volume Structure: Up on Volume, Down on Lighter Volume
Another thing I watch closely is volume relative to the 20-day average volume:
Volume Ratio = Daily Volume / 20-Day Average Volume
If a stock is up 10%–20% but volume does not expand meaningfully, the move may just be driven by thin liquidity.
But if the stock breaks out while volume hits a new multi-week or multi-month high, that tells me real money is likely coming in.
For momentum trades, volume confirmation matters a lot.
4. Sector Breadth: Is the Rally Spreading From Leaders to Second- and Third-Tier Names?
Strong rallies usually go through three stages:
| Stage | Typical behavior | What it means |
|---|---|---|
| Stage 1 | Leaders like NVDA, AVGO, AMD, MU, TSM lead the move | Trend confirmation |
| Stage 2 | Equipment, testing, materials, optical, and memory small caps start running | Most profitable part of the momentum cycle |
| Stage 3 | Unprofitable small caps, low-priced stocks, and weak concept names explode | Crowding / late-cycle risk |
This rally has clearly spread beyond the mega-cap leaders. Memory, AI optical names, equipment/material stocks, and small-cap semiconductor names have all started participating.
That is a strong signal, but it cuts both ways.
On one hand, it shows the theme is very hot. On the other hand, explosive inflows into thematic trades often mean the trade is becoming crowded. If those flows reverse, the high-beta memory names could fall much faster than the broader market.
5. Earnings Revisions: As Long as EPS Estimates Keep Moving Up, the Trend Has Fuel
The most important fundamental driver in this rally, in my opinion, is upward earnings revisions in memory and optical-related names.
Take Micron as an example. AI-driven DRAM demand has led analysts to raise revenue and margin expectations sharply. That kind of earnings revision is the real fuel behind a durable stock move.
So for names like MU, SNDK, WDC, STX, LITE, and AAOI, I want to see:
● Revenue estimates moving higher
● Order growth staying strong
● Gross margin expectations improving
● EPS estimates continuing to rise
As long as those revisions continue, the trend is less likely to end suddenly.
But if the stocks keep rising while EPS estimates stop moving up, then the move becomes mostly multiple expansion. That is when the rally becomes much more fragile.
My Current View
Here are the signals I’m watching most closely:
| Signal | What it could mean |
|---|---|
| SMH / SOXX break below the 50-day moving average and fail to reclaim it | Sector trend is entering correction mode |
| MU / LITE / AAOI / SNDK start underperforming SMH | Momentum in the leading themes is weakening |
| Memory prices or earnings estimates stop rising | The memory trade may be topping |
| Small-cap semis explode while leaders stop moving | The rally may be entering its late stage |
| ETF flows turn into consistent large outflows | Thematic capital is leaving |
| Stocks fail to rally after earnings beats | Expectations may already be too high |
| Frequent gap-ups that fade into high-volume upper wicks | Distribution / supply is showing up |
My conclusion is this:
I do not think this semiconductor rally is clearly “over” yet.
The sector ETFs are still strong. Memory and AI optical names still have earnings revision support. Capital is still looking for high-beta opportunities across the semiconductor supply chain.
But this is no longer the early stage of the move.
We are now in the high-volatility expansion phase after a very strong trend. This is often the phase where the biggest money is made — but also where traders can get trapped very quickly near the top.
As long as SMH and SOXX stay above their 50-day moving averages, SMH/QQQ keeps trending higher, and earnings expectations for the leading names continue to rise, I think the right move is to respect the trend.
But once the sector breaks below the 50-day moving average, relative strength turns lower, and earnings beats stop getting rewarded, I would stop treating every dip as just another healthy pullback.