DIOD
Price
$54.32
Change
+$1.79 (+3.41%)
Updated
Sep 11 closing price
Capitalization
2.52B
54 days until earnings call
POWI
Price
$45.62
Change
+$1.14 (+2.56%)
Updated
Sep 11 closing price
Capitalization
2.56B
48 days until earnings call
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DIOD vs POWI

Header iconDIOD vs POWI Comparison
Open Charts DIOD vs POWIBanner chart's image
Diodes
Price$54.32
Change+$1.79 (+3.41%)
Volume$430.06K
Capitalization2.52B
Power Integrations
Price$45.62
Change+$1.14 (+2.56%)
Volume$771.41K
Capitalization2.56B
DIOD vs POWI Comparison Chart in %
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DIOD
Daily Signalchanged days ago
Gain/Loss if bought
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POWI
Daily Signalchanged days ago
Gain/Loss if bought
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DIOD vs. POWI commentary
Sep 12, 2025

To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is DIOD is a StrongBuy and POWI is a Buy.

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COMPARISON
Comparison
Sep 12, 2025
Stock price -- (DIOD: $54.32 vs. POWI: $45.62)
Brand notoriety: DIOD and POWI are both not notable
Both companies represent the Semiconductors industry
Current volume relative to the 65-day Moving Average: DIOD: 99% vs. POWI: 139%
Market capitalization -- DIOD: $2.52B vs. POWI: $2.56B
DIOD [@Semiconductors] is valued at $2.52B. POWI’s [@Semiconductors] market capitalization is $2.56B. The market cap for tickers in the [@Semiconductors] industry ranges from $4.31T to $0. The average market capitalization across the [@Semiconductors] industry is $96.05B.

Long-Term Analysis

It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).

DIOD’s FA Score shows that 1 FA rating(s) are green whilePOWI’s FA Score has 1 green FA rating(s).

  • DIOD’s FA Score: 1 green, 4 red.
  • POWI’s FA Score: 1 green, 4 red.
According to our system of comparison, POWI is a better buy in the long-term than DIOD.

Short-Term Analysis

It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.

If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.

DIOD’s TA Score shows that 7 TA indicator(s) are bullish while POWI’s TA Score has 5 bullish TA indicator(s).

  • DIOD’s TA Score: 7 bullish, 4 bearish.
  • POWI’s TA Score: 5 bullish, 3 bearish.
According to our system of comparison, DIOD is a better buy in the short-term than POWI.

Price Growth

DIOD (@Semiconductors) experienced а +1.62% price change this week, while POWI (@Semiconductors) price change was +1.99% for the same time period.

The average weekly price growth across all stocks in the @Semiconductors industry was +5.07%. For the same industry, the average monthly price growth was +3.84%, and the average quarterly price growth was +25.32%.

Reported Earning Dates

DIOD is expected to report earnings on Nov 05, 2025.

POWI is expected to report earnings on Oct 30, 2025.

Industries' Descriptions

@Semiconductors (+5.07% weekly)

The semiconductor industry manufacturers all chip-related products, including research and development. These chips are used in innumerable electronic devices, including computers, cell phones, smartphones, and GPSs. Intel Corporation, NVIDIA Corp., and Broadcomm are some of the prominent players in this industry. Semiconductor companies usually tend to do well during periods of healthy economic growth, thereby inducing further research and development in the industry – which in turn augurs well for productivity and growth in the economy. In the near future, demand for semiconductor products (and possibly innovation within the segment) should only expand further, with the proliferation of 5G, autonomous vehicles, IoT, and various AI-driven electronics set to herald a new, advanced chapter in the technology-driven world as we know it. With burgeoning prospects comes great competition. In 2015, SIA estimated that U.S. semiconductor industry ranks as the second most competitive U.S. industry out of 2882 U.S. industries designated manufacturers by the U.S. Census Bureau.

SUMMARIES
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FUNDAMENTALS
Fundamentals
POWI($2.56B) and DIOD($2.52B) have the same market capitalization . POWI has higher P/E ratio than DIOD: POWI (77.32) vs DIOD (39.65). DIOD YTD gains are higher at: -11.918 vs. POWI (-25.156). DIOD has higher annual earnings (EBITDA): 224M vs. POWI (52.1M). DIOD has more cash in the bank: 327M vs. POWI (269M). POWI has less debt than DIOD: POWI (41K) vs DIOD (54M). DIOD has higher revenues than POWI: DIOD (1.39B) vs POWI (442M).
DIODPOWIDIOD / POWI
Capitalization2.52B2.56B99%
EBITDA224M52.1M430%
Gain YTD-11.918-25.15647%
P/E Ratio39.6577.3251%
Revenue1.39B442M314%
Total Cash327M269M122%
Total Debt54M41K131,707%
FUNDAMENTALS RATINGS
DIOD vs POWI: Fundamental Ratings
DIOD
POWI
OUTLOOK RATING
1..100
6661
VALUATION
overvalued / fair valued / undervalued
1..100
68
Overvalued
18
Undervalued
PROFIT vs RISK RATING
1..100
96100
SMR RATING
1..100
8886
PRICE GROWTH RATING
1..100
5564
P/E GROWTH RATING
1..100
2454
SEASONALITY SCORE
1..100
7550

Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.

POWI's Valuation (18) in the Semiconductors industry is somewhat better than the same rating for DIOD (68). This means that POWI’s stock grew somewhat faster than DIOD’s over the last 12 months.

DIOD's Profit vs Risk Rating (96) in the Semiconductors industry is in the same range as POWI (100). This means that DIOD’s stock grew similarly to POWI’s over the last 12 months.

POWI's SMR Rating (86) in the Semiconductors industry is in the same range as DIOD (88). This means that POWI’s stock grew similarly to DIOD’s over the last 12 months.

DIOD's Price Growth Rating (55) in the Semiconductors industry is in the same range as POWI (64). This means that DIOD’s stock grew similarly to POWI’s over the last 12 months.

DIOD's P/E Growth Rating (24) in the Semiconductors industry is in the same range as POWI (54). This means that DIOD’s stock grew similarly to POWI’s over the last 12 months.

TECHNICAL ANALYSIS
Technical Analysis
DIODPOWI
RSI
ODDS (%)
Bullish Trend 3 days ago
89%
Bullish Trend 1 day ago
79%
Stochastic
ODDS (%)
Bullish Trend 1 day ago
72%
Bullish Trend 1 day ago
60%
Momentum
ODDS (%)
Bearish Trend 1 day ago
77%
Bearish Trend 1 day ago
78%
MACD
ODDS (%)
Bearish Trend 1 day ago
73%
Bullish Trend 1 day ago
61%
TrendWeek
ODDS (%)
Bullish Trend 1 day ago
69%
Bullish Trend 1 day ago
67%
TrendMonth
ODDS (%)
Bullish Trend 1 day ago
66%
Bullish Trend 1 day ago
65%
Advances
ODDS (%)
Bullish Trend 17 days ago
70%
Bullish Trend 5 days ago
68%
Declines
ODDS (%)
Bearish Trend 3 days ago
74%
Bearish Trend 3 days ago
75%
BollingerBands
ODDS (%)
Bearish Trend 1 day ago
86%
Bullish Trend 1 day ago
77%
Aroon
ODDS (%)
Bullish Trend 1 day ago
66%
Bearish Trend 1 day ago
69%
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DIOD
Daily Signalchanged days ago
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POWI
Daily Signalchanged days ago
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DIOD and

Correlation & Price change

A.I.dvisor indicates that over the last year, DIOD has been closely correlated with POWI. These tickers have moved in lockstep 80% of the time. This A.I.-generated data suggests there is a high statistical probability that if DIOD jumps, then POWI could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To DIOD
1D Price
Change %
DIOD100%
+3.41%
POWI - DIOD
80%
Closely correlated
+2.56%
MCHP - DIOD
80%
Closely correlated
+0.43%
KLIC - DIOD
78%
Closely correlated
+2.77%
SLAB - DIOD
75%
Closely correlated
+2.50%
NXPI - DIOD
74%
Closely correlated
+1.79%
More

POWI and

Correlation & Price change

A.I.dvisor indicates that over the last year, POWI has been closely correlated with KLIC. These tickers have moved in lockstep 82% of the time. This A.I.-generated data suggests there is a high statistical probability that if POWI jumps, then KLIC could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To POWI
1D Price
Change %
POWI100%
+2.56%
KLIC - POWI
82%
Closely correlated
+2.77%
DIOD - POWI
80%
Closely correlated
+3.41%
NXPI - POWI
78%
Closely correlated
+1.79%
SLAB - POWI
75%
Closely correlated
+2.50%
MCHP - POWI
74%
Closely correlated
+0.43%
More