HEI
Price
$322.87
Change
-$11.45 (-3.42%)
Updated
Feb 4, 02:49 PM (EDT)
Capitalization
40.11B
26 days until earnings call
Intraday BUY SELL Signals
TDG
Price
$1260.65
Change
-$41.28 (-3.17%)
Updated
Feb 4, 03:22 PM (EDT)
Capitalization
73.5B
97 days until earnings call
Intraday BUY SELL Signals
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HEI vs TDG

Header iconHEI vs TDG Comparison
Open Charts HEI vs TDGBanner chart's image
HEI
Price$322.87
Change-$11.45 (-3.42%)
Volume$174
Capitalization40.11B
TransDigm Group
Price$1260.65
Change-$41.28 (-3.17%)
Volume$324
Capitalization73.5B
HEI vs TDG Comparison Chart in %
HEI
Daily Signal:
Gain/Loss:
TDG
Daily Signal:
Gain/Loss:
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VS
HEI vs. TDG commentary
Feb 04, 2026

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 HEI is a Hold and TDG is a Buy.

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COMPARISON
Comparison
Feb 04, 2026
Stock price -- (HEI: $334.32 vs. TDG: $1301.93)
Brand notoriety: HEI and TDG are both not notable
Both companies represent the Aerospace & Defense industry
Current volume relative to the 65-day Moving Average: HEI: 106% vs. TDG: 422%
Market capitalization -- HEI: $40.11B vs. TDG: $73.5B
HEI [@Aerospace & Defense] is valued at $40.11B. TDG’s [@Aerospace & Defense] market capitalization is $73.5B. The market cap for tickers in the [@Aerospace & Defense] industry ranges from $325.06B to $0. The average market capitalization across the [@Aerospace & Defense] industry is $24.73B.

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).

HEI’s FA Score shows that 1 FA rating(s) are green whileTDG’s FA Score has 3 green FA rating(s).

  • HEI’s FA Score: 1 green, 4 red.
  • TDG’s FA Score: 3 green, 2 red.
According to our system of comparison, HEI is a better buy in the long-term than TDG.

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.

HEI’s TA Score shows that 4 TA indicator(s) are bullish while TDG’s TA Score has 6 bullish TA indicator(s).

  • HEI’s TA Score: 4 bullish, 4 bearish.
  • TDG’s TA Score: 6 bullish, 5 bearish.
According to our system of comparison, TDG is a better buy in the short-term than HEI.

Price Growth

HEI (@Aerospace & Defense) experienced а -1.25% price change this week, while TDG (@Aerospace & Defense) price change was -8.78% for the same time period.

The average weekly price growth across all stocks in the @Aerospace & Defense industry was -6.32%. For the same industry, the average monthly price growth was +9.52%, and the average quarterly price growth was +27.50%.

Reported Earning Dates

HEI is expected to report earnings on Mar 02, 2026.

TDG is expected to report earnings on May 12, 2026.

Industries' Descriptions

@Aerospace & Defense (-6.32% weekly)

Aerospace & Defense is one of largest industries in the U.S., mainly comprising the following areas: commercial airliners, military aircraft, missiles, space, and general aviation. Focused heavily on research & development, it is also one of the fastest growing industries. Military aircraft has the largest market share in the industry’s sales, followed by space systems, civil aircraft, and missiles. Aerospace exports, directly and indirectly, support more jobs than the export of any other commodity, according to a study by the U.S. Department of Commerce. Boeing Company, Lockheed Martin Corporation and General Electric Company are some of the most prominent players in this space.

SUMMARIES
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FUNDAMENTALS
Fundamentals
TDG($73.5B) has a higher market cap than HEI($40.1B). HEI has higher P/E ratio than TDG: HEI (68.23) vs TDG (41.89). HEI YTD gains are higher at: 3.354 vs. TDG (-2.099). TDG has higher annual earnings (EBITDA): 4.57B vs. HEI (1.22B). TDG has more cash in the bank: 2.81B vs. HEI (218M). HEI has less debt than TDG: HEI (2.19B) vs TDG (30B). TDG has higher revenues than HEI: TDG (8.83B) vs HEI (4.49B).
HEITDGHEI / TDG
Capitalization40.1B73.5B55%
EBITDA1.22B4.57B27%
Gain YTD3.354-2.099-160%
P/E Ratio68.2341.89163%
Revenue4.49B8.83B51%
Total Cash218M2.81B8%
Total Debt2.19B30B7%
FUNDAMENTALS RATINGS
HEI vs TDG: Fundamental Ratings
HEI
TDG
OUTLOOK RATING
1..100
7575
VALUATION
overvalued / fair valued / undervalued
1..100
86
Overvalued
78
Overvalued
PROFIT vs RISK RATING
1..100
1013
SMR RATING
1..100
5016
PRICE GROWTH RATING
1..100
5026
P/E GROWTH RATING
1..100
4673
SEASONALITY SCORE
1..100
5050

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.

TDG's Valuation (78) in the Aerospace And Defense industry is in the same range as HEI (86). This means that TDG’s stock grew similarly to HEI’s over the last 12 months.

HEI's Profit vs Risk Rating (10) in the Aerospace And Defense industry is in the same range as TDG (13). This means that HEI’s stock grew similarly to TDG’s over the last 12 months.

TDG's SMR Rating (16) in the Aerospace And Defense industry is somewhat better than the same rating for HEI (50). This means that TDG’s stock grew somewhat faster than HEI’s over the last 12 months.

TDG's Price Growth Rating (26) in the Aerospace And Defense industry is in the same range as HEI (50). This means that TDG’s stock grew similarly to HEI’s over the last 12 months.

HEI's P/E Growth Rating (46) in the Aerospace And Defense industry is in the same range as TDG (73). This means that HEI’s stock grew similarly to TDG’s over the last 12 months.

TECHNICAL ANALYSIS
Technical Analysis
HEITDG
RSI
ODDS (%)
Bearish Trend 2 days ago
56%
Bullish Trend 2 days ago
75%
Stochastic
ODDS (%)
Bullish Trend 2 days ago
63%
Bearish Trend 2 days ago
49%
Momentum
ODDS (%)
Bearish Trend 2 days ago
53%
Bearish Trend 2 days ago
49%
MACD
ODDS (%)
Bearish Trend 2 days ago
56%
Bearish Trend 2 days ago
52%
TrendWeek
ODDS (%)
Bearish Trend 2 days ago
52%
Bearish Trend 2 days ago
49%
TrendMonth
ODDS (%)
Bullish Trend 2 days ago
58%
Bearish Trend 2 days ago
54%
Advances
ODDS (%)
Bullish Trend 2 days ago
63%
Bullish Trend 3 days ago
66%
Declines
ODDS (%)
Bearish Trend 13 days ago
55%
Bearish Trend 8 days ago
50%
BollingerBands
ODDS (%)
Bullish Trend 2 days ago
59%
Bullish Trend 2 days ago
75%
Aroon
ODDS (%)
Bullish Trend 2 days ago
53%
Bullish Trend 2 days ago
61%
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HEI
Daily Signal:
Gain/Loss:
TDG
Daily Signal:
Gain/Loss:
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HEI and

Correlation & Price change

A.I.dvisor indicates that over the last year, HEI has been loosely correlated with VSEC. These tickers have moved in lockstep 56% of the time. This A.I.-generated data suggests there is some statistical probability that if HEI jumps, then VSEC could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To HEI
1D Price
Change %
HEI100%
+0.62%
VSEC - HEI
56%
Loosely correlated
+2.16%
WWD - HEI
55%
Loosely correlated
+13.42%
TDG - HEI
55%
Loosely correlated
-9.31%
HWM - HEI
51%
Loosely correlated
+3.03%
GE - HEI
50%
Loosely correlated
+0.40%
More

TDG and

Correlation & Price change

A.I.dvisor indicates that over the last year, TDG has been loosely correlated with HEI. These tickers have moved in lockstep 55% of the time. This A.I.-generated data suggests there is some statistical probability that if TDG jumps, then HEI could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To TDG
1D Price
Change %
TDG100%
-9.31%
HEI - TDG
55%
Loosely correlated
+0.62%
GE - TDG
53%
Loosely correlated
+0.40%
WWD - TDG
52%
Loosely correlated
+13.42%
HWM - TDG
49%
Loosely correlated
+3.03%
GD - TDG
47%
Loosely correlated
+2.58%
More