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Infineon Technologies AG (IFNNF) stock

IFNNFOTCSemiconductors & Related DevicesFiscal year ends September 30Also trades as IFNNY
Last filing: 20-F on Dec 8, 2009
$58.50−2.17 (-3.58%)

Close on Oct 19, 2026Market cap –P/E –Yield –

Price history

Infineon Technologies share prices for every month, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 19, 2026
$58.50
-3.58% on the day
52-week range
$37.05 – $103.50
-43.5% from the high
Change over 52 weeks
+55.4%
From $37.65 on Oct 17, 2025
Average volume
10,902
Shares a day, last 90 sessions
MonthOpenHighLowCloseChangeVolume
Oct 2026$69.58$71.50$56.16$58.50-10.29%186,656
Sep 2026$64.78$68.50$61.00$65.21-0.86%45,584
Aug 2026$71.45$76.15$62.35$65.78-7.74%112,891
Jul 2026$88.15$88.70$61.75$71.29-22.71%127,015
Jun 2026$93.98$103.50$84.65$92.24-4.21%792,040
May 2026$67.30$96.30$65.45$96.30+44.27%443,250
Apr 2026$47.00$68.45$43.52$66.75+48.66%326,342
Mar 2026$54.85$54.85$42.20$44.90-18.14%91,946
Feb 2026$49.01$56.84$47.85$54.85+8.76%53,014
Jan 2026$44.44$52.50$44.44$50.43+15.81%35,466
Dec 2025$40.10$44.44$40.10$43.55+4.42%388,541
Nov 2025$39.45$43.00$37.05$41.70+5.70%147,580
Oct 2025$37.86$41.00$37.15$39.45+4.20%17,618
Sep 2025$39.52$40.45$36.21$37.86-7.22%1,686,754
Aug 2025$39.00$43.50$38.75$40.81+1.97%530,064
Jul 2025$41.53$45.15$39.80$40.02-3.63%63,626
Jun 2025$38.01$42.50$38.01$41.53+6.62%14,284
May 2025$31.56$39.90$31.40$38.95+19.30%60,558
Apr 2025$33.55$35.38$26.60$32.65+2.03%855,145
Mar 2025$38.58$39.50$32.00$32.00-12.57%23,833
Feb 2025$33.59$41.05$33.59$36.60+8.96%38,317
Jan 2025$32.95$36.29$32.19$33.59+2.10%373,677
Dec 2024$32.38$36.09$31.52$32.90+3.62%114,333
Nov 2024$31.60$34.00$29.80$31.75-0.69%40,822
Oct 2024$33.80$34.69$31.72$31.97-8.66%407,639
Sep 2024$36.06$36.06$31.02$35.00-2.78%17,900
Aug 2024$33.91$36.67$30.80$36.00+6.48%88,700
Jul 2024$36.21$39.00$32.95$33.81-7.34%296,800
Jun 2024$40.55$41.75$35.90$36.49-10.98%32,200
May 2024$34.00$41.79$33.35$40.99+16.78%112,100
Apr 2024$34.30$36.68$31.66$35.10+5.53%73,900
Mar 2024$36.72$38.36$32.87$33.26-6.60%33,800
Feb 2024$36.58$37.74$34.18$35.61-2.65%62,700
Jan 2024$41.64$41.64$35.29$36.58-12.15%88,900
Dec 2023$38.85$42.41$38.30$41.64+4.39%39,500
Nov 2023$29.05$39.89$29.05$39.89+36.94%61,400
Oct 2023$33.22$35.44$28.94$29.13-12.76%74,700
Sep 2023$35.09$35.09$31.85$33.39-4.84%95,100
Aug 2023$43.25$43.25$34.35$35.09-18.87%32,900
Jul 2023$40.50$44.10$38.90$43.25+8.13%21,000
Jun 2023$37.75$42.34$37.75$40.00+5.21%26,700
May 2023$36.00$38.78$35.26$38.02+5.14%47,100
Apr 2023$40.16$40.80$35.61$36.16-11.39%48,300
Mar 2023$35.60$41.22$34.45$40.81+14.63%27,100
Feb 2023$37.20$39.82$35.60$35.60-0.28%12,300
Jan 2023$30.60$37.00$30.60$35.70+17.05%45,400
Dec 2022$33.80$35.00$29.57$30.50-9.50%63,000
Nov 2022$24.40$33.97$23.16$33.70+35.72%661,700
Oct 2022$21.66$26.24$21.66$24.83+14.64%192,700
Sep 2022$23.82$27.00$21.29$21.66-11.37%144,700
Aug 2022$27.26$29.29$24.28$24.44-9.41%227,700
Jul 2022$23.17$27.05$21.56$26.98+13.46%211,600
Jun 2022$31.12$32.39$23.78$23.78-23.54%203,600
May 2022$27.44$31.10$27.31$31.10+7.76%406,500
Apr 2022$35.22$35.22$28.00$28.86-18.06%57,700
Mar 2022$32.79$36.68$28.41$35.22+3.59%404,700
Feb 2022$40.74$42.12$32.80$34.00-14.16%214,900
Jan 2022$46.00$46.67$38.00$39.61-13.80%162,500
Dec 2021$44.78$48.00$42.36$45.95+2.61%61,100
Nov 2021$47.08$49.91$44.40$44.78-3.49%473,400

Seasonality

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average3.3%0.7%-4.8%6.1%9.6%-3.0%0.5%-1.2%-2.5%0.1%13.5%1.2%
Months up8 of 105 of 103 of 105 of 108 of 104 of 106 of 105 of 103 of 105 of 107 of 96 of 9
202615.8%8.8%-18.1%48.7%44.3%-4.2%-22.7%-7.7%-0.9%-10.3%
20252.1%9.9%-12.6%2.0%19.3%6.6%-3.6%2.0%-7.2%4.2%5.7%4.4%
2024-12.2%-1.6%-6.6%5.5%16.8%-11.0%-7.3%6.5%-2.8%-8.7%-0.7%3.6%
202317.0%0.6%14.6%-11.4%5.1%5.2%8.1%-18.9%-4.8%-12.8%36.9%4.4%
2022-13.8%-13.4%3.6%-18.1%7.8%-23.5%13.5%-9.4%-11.4%14.6%35.7%-9.5%
20212.1%11.4%-3.6%-4.3%-2.5%2.2%-3.6%10.0%-2.8%11.4%-3.5%2.6%
20200.0%-4.9%-31.4%24.9%16.6%8.7%8.8%10.4%3.2%-1.8%26.4%10.0%
201913.0%1.7%-9.0%16.3%-23.8%-0.8%4.9%-7.6%3.6%9.2%11.1%3.3%
20185.0%-5.0%-1.4%-3.1%5.8%-7.7%4.6%-2.9%-9.5%-16.8%8.5%-6.4%
20173.6%-0.7%16.7%-0.1%7.1%-5.2%2.6%6.2%7.6%12.3%1.0%-1.3%

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