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TransDigm Group INC (TDG) stock

TDGNYSEAircraft Parts & Auxiliary Equipment, NECFiscal year ends September 30
Financials through Q3 FY2026, quarter ended Jun 27, 2026Last filing: 10-Q on Aug 4, 2026Score 14/3020% below fair value
$1146.81−29.10 (-2.47%)

Close on Oct 30, 2026Market cap $63.39BP/E 32.1Yield –

Price history

TransDigm share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$1,146.81
-2.47% on the day
52-week range
$1,071.25 – $1,463.03
-21.6% from the high
Change over 52 weeks
-12.2%
From $1,306.14 on Oct 30, 2025
Average volume
386,610
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 30, 2026$1,178.88$1,181.88$1,145.25$1,146.81-2.47%395,435
Oct 29, 2026$1,155.83$1,185.60$1,147.29$1,175.91+3.46%331,145
Oct 28, 2026$1,130.65$1,151.68$1,128.85$1,136.53+0.56%254,780
Oct 27, 2026$1,126.30$1,134.43$1,119.12$1,130.23+0.05%323,868
Oct 26, 2026$1,111.00$1,131.15$1,106.78$1,129.70+2.25%384,895
Oct 23, 2026$1,124.81$1,124.81$1,082.59$1,104.84-3.23%437,626
Oct 22, 2026$1,122.07$1,144.41$1,105.26$1,141.74+1.09%489,001
Oct 21, 2026$1,148.94$1,154.85$1,122.51$1,129.38-1.20%346,813
Oct 20, 2026$1,137.42$1,152.70$1,127.53$1,143.06+0.05%347,996
Oct 19, 2026$1,135.00$1,146.88$1,127.52$1,142.45+0.27%283,455
Oct 16, 2026$1,144.14$1,158.04$1,135.72$1,139.34+0.45%395,842
Oct 15, 2026$1,118.43$1,136.34$1,111.95$1,134.24+2.20%287,988
Oct 14, 2026$1,112.19$1,115.42$1,099.14$1,109.77-0.24%316,125
Oct 13, 2026$1,113.01$1,115.71$1,091.16$1,112.39-0.67%331,223
Oct 12, 2026$1,107.25$1,129.21$1,105.15$1,119.94+1.08%330,542
Oct 9, 2026$1,090.02$1,110.77$1,085.00$1,107.99+1.72%278,700
Oct 8, 2026$1,091.73$1,104.51$1,087.50$1,089.30-0.63%424,275
Oct 7, 2026$1,092.01$1,101.75$1,082.04$1,096.21-0.65%399,452
Oct 6, 2026$1,093.00$1,110.33$1,082.66$1,103.33+0.98%287,343
Oct 5, 2026$1,087.00$1,098.74$1,078.00$1,092.66+0.21%318,283
Oct 2, 2026$1,102.73$1,108.44$1,086.13$1,090.38-0.63%278,628
Oct 1, 2026$1,083.26$1,102.20$1,080.09$1,097.24+1.35%402,117
Sep 30, 2026$1,099.36$1,099.39$1,077.83$1,082.60-1.56%385,163
Sep 29, 2026$1,107.82$1,118.72$1,091.01$1,099.79-0.85%456,254
Sep 28, 2026$1,105.35$1,112.45$1,092.94$1,109.22-0.63%330,720
Sep 25, 2026$1,107.99$1,118.15$1,100.01$1,116.20+0.99%223,006
Sep 24, 2026$1,102.06$1,115.06$1,096.86$1,105.280.00%304,666
Sep 23, 2026$1,110.56$1,127.68$1,101.93$1,105.28-0.64%287,069
Sep 22, 2026$1,119.45$1,122.47$1,085.06$1,112.42+0.25%551,183
Sep 21, 2026$1,091.30$1,113.09$1,088.53$1,109.65+2.17%461,727

Seasonality

TDG return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average5.5%2.2%-5.1%3.9%5.0%2.6%2.9%0.8%-2.3%0.8%7.0%1.8%
Months up7 of 107 of 105 of 109 of 109 of 107 of 107 of 105 of 104 of 105 of 107 of 96 of 9
20267.3%-8.7%-11.0%0.1%8.5%5.9%-5.8%-6.6%-7.6%5.9%
20256.8%1.0%1.2%2.2%3.9%3.6%5.8%-13.0%0.7%-0.7%3.9%-2.2%
20248.0%7.8%4.6%1.3%7.6%-4.9%1.3%6.1%3.9%-3.7%-3.8%1.1%
202314.0%3.6%-0.9%3.8%1.1%15.6%0.6%0.5%-6.7%-1.8%20.6%5.1%
2022-3.2%8.2%-2.3%-8.7%1.8%-11.3%16.0%-0.8%-12.6%9.7%9.2%0.2%
2021-10.6%4.2%2.0%4.4%5.7%-0.2%-1.0%-5.2%2.8%-0.1%-7.3%10.1%
202014.9%-13.3%-42.6%13.4%17.0%4.1%-2.4%15.8%-4.9%0.5%21.3%6.8%
201915.0%11.0%4.6%6.3%-8.6%9.7%0.3%17.4%-3.3%1.1%7.8%4.4%
201815.4%-9.0%6.5%4.4%4.2%3.3%8.8%-6.8%6.4%-11.3%9.5%-6.0%
2017-13.1%17.5%-13.4%12.1%8.7%0.3%4.9%0.4%-1.9%8.5%2.3%-3.2%